2. Zac has earned $ 200 and earns $ 20 every week walking his neighbor's dog. Jon is $ 100 in debt and earns $ 25 every week cleaning his neighbor's pool. In how many weeks ( w ) will both Zac and Jon earnings be the same?
A student claims the solution to the equation 200+20 w=-100+25 w is w=50 He shows his steps.

Given : 2 0 0+2 0 w=- 1 0 0}+2 5 w
Step 1: 300+20 w=25 w
Step 2: 300=5 w
Step 3: 60=w

Select the two correct justifications for the given steps.
Step 1: Addition Property of Equality
Step 2: Subtraction Property of Equality
Step 3: Division Property of Equality

Answer:

2^3 = 8

Step-by-step explanation:

Answer: none of these

Step-by-step explanation:

okay, your answers b and c are the same so maybe you typed or copied them in wrong

but if the function is g(x)=1/(x+3)-5 than the answer would be…

translate it 3 right and up 5

I hope this helps!

Answer: 120

Step-by-step explanation:

We can put it in an equation like this:

6 = 5%x

Then, we solve:

6 = 1/20 x

x = 20/1 *6

x=120

Therefore, 5% of 120 is 6.

Answer:

120

Step-by-step explanation:

5/100=6/x

Cross multiply

5x=100(6)

5x=600

/5. /5

x=120

Hopes this helps please mark brainliest

=============================================

Explanation:

1/4 = 0.25

1/2 = 0.5

24 & 1/2 = 24.5

The rope is 24.5 ft long and you want sections of length 0.25 ft each.

Let x be the number of sections we can make.

1 section is 0.25 ft long

x of them combine to 0.25x feet long

Set this equal to 24.5 and solve for x

0.25x = 24.5

x = (24.5)/(0.25)

x = 98

There will be 98 sections of equal length (each being 0.25 ft)

------------------

Another way to look at it:

1 foot of rope gets you four sections of 0.25 ft each

24 feet of rope gets you 24*4 = 96 sections.

Another 0.5 ft adds another 0.5*4 = 2 sections to get to a total of 96+2 = 98

The rectangular coordinates are (-3.825,-1.169).

In a rectangular coordinate system, we were plotting points based on an ordered pair of (x, y). In the polar coordinate system, the ordered pair will now be (r, θ). The ordered pair specifies a point’s location based on the value of r and the angle, θ, from the polar axis.

The value of r can be positive, negative, or zero. The sign of r is very important in locating the exact position of the point. The absolute value of r, |r|, is the distance between the point and the pole.

1. If r is positive (r > 0) then the point lies on the terminal side of θ

2. If r is negative (r < 0) then the point lies on the ray opposite of the terminal side of θ

3. If r is zero (r = 0) then the point lies at the pole regardless of θ

Given,

P= (4,197)

Finding rectangular coordinates (x,y)

x = r cosθ

x = 4 cos 197

x = 4* (-0.956)

x = -3.825

y = r sinθ

y = 4 sin 197

y = 4*(-0.292)

y = -1.169

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The required values of a and b for the given case are 10000 and 15.08 respectively.

An exponentially decaying function has a general form f(x) = (1 -r)ˣ, where r is called the decay rate. it can be found by having any two values of x for which f(x) is known.

The given problem can be solved as follows,

The function is f(x) = abˣ

And, the given points on the function are (0, 10000) and (3, 3430).

Substitute x = 0 and f(x) = 10000 in the f(x) to obtain,

f(0) = ab⁰

=> 10000 = a

Again, substitute x = 3 and f(x) = 3430 in the f(x) to obtain,

f(3) = ab³

=> 3430 = 10000 × b³

=> b = ∛0.3430

=> b = 15.08

Hence, the values of a and b for the given exponential function are 10000 and 15.08 respectively.

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A function showing the value of the account after t years, where the annual growth rate can be found from a constant in the function is f(t) = 2900 × (1.0624)^t and APY is 6.24%.

Compound interest in simple words is the interest earning for your savings with the interest which those savings earn.

The formula for calculating the amount in Compound Interest is,

A = P( 1 + [tex]\frac{r}{n}[/tex] )ⁿᵇ

where A is the amount, P is the principal, r is the rate of interest, n is the number of times interest compounded in a year and b is the number of years.

Here, P = $2900, r = 6.1% = 0.061, n = 4 (quarterly) and b = t years

A = 2900 (1 + [tex]\frac{0.061}{4}[/tex])^4t

A = 2900 (1.0153)^4t

A = 2900 × (1.0624)^t

So A can be said as a function of t.

f(t) = 2900 × (1.0624)^t

Percentage of growth per year (APY) = ( 1 + [tex]\frac{r}{n}[/tex] )ⁿ - 1

                                                              = (1 + [tex]\frac{0.061}{4}[/tex])⁴ - 1

                                                              = 1.0624 - 1

                                                              = 0.0624 = 6.24%

Hence the function of the value of the account after t years is f(t) = 2900 × (1.0624)^t, where the value 1.0624 is a constant.

Percentage of growth per year is 6.24%.

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Seven more than the quotient of a number b and 45 is greater than 5 then the inequality is b > -90.

What is inequality?

7 more than the quotient of a number b and 45 is greater than 5.

interpretation

7 + b/45 > 5

collect the like terms

b/45>5-7

b/45>-2

cross multiply

∴ b>-2×45

b > -90

Hence, Seven more than the quotient of a number b and 45 is greater than 5 then the inequality is b > -90.

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Answer:

The answer is 4

Step-by-step explanation:

The group candidate is 8

with a division between the number of candidates and the number of selection will the result.

8 candidates ÷ 2 candidates = 4

The way in which 2 candidates can be selected from the pool of 8 candidates to be a city commissioner is 4.

Based on the given parameters, the value of the money to invest initially is $994.8

The given parameters about the compound interest are

Principal Amount, P = $2130

Interest Rate, R = 6.4%

Time, t = 12

Number of times, n = 12 i.e. monthly

To calculate the amount, we have:

A = P + CI

Where

C = P(1 + R)^t

So, we have

A = P(1 + R)^t

This can be rewritten as

A = P(1 + R/n)^nt

Substitute the known values in the above equation

2130 = A * (1 + 6.4%/12)^(12*12)

So, we have

A = 2130/[(1 + 6.4%/12)^(12*12)]

Evaluate the expression

A = 994.8

Hence, the amount of the investment is $994.8

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Answer: You would have to know the number of yards separate from his neighbors yard to get the answer.

Step-by-step explanation:

For example if his yard was 50 yards from his neighbors than you would add that to the width. Length plus width to get your answer.

Answer:

Step-by-step explanation:

a. The music stalls collected Ks 3000.

b. The game stalls collected Ks 4800, which is a fraction of the total amount of money collected. To find the fraction, we can divide the amount collected by the game stalls by the total amount collected by all the stalls:

$\frac{Ks 4800}{Ks 3000 + Ks 4800 + Ks 3000} = \frac{Ks 4800}{Ks 10800} = \frac{2}{9}$

Therefore, the game stalls collected $\frac{2}{9}$ of the total amount of money.

c. The food stalls collected Ks 4800, which is a percentage of the total amount of money collected. To find the percentage, we can divide the amount collected by the food stalls by the total amount collected by all the stalls and multiply by 100%:

$\frac{Ks 4800}{Ks 3000 + Ks 4800 + Ks 3000} \times 100% = \frac{Ks 4800}{Ks 10800} \times 100% = 44.44%$

Therefore, the food stalls collected 44.44% of the total amount of money.

d. The handicraft stalls collected Ks 3000, and the music stalls collected Ks 3000. The ratio of the money collected by the handicraft stalls to the money collected by the music stalls is therefore 1:1. We can write this ratio as $\frac{1}{1} = 1$, or simply as 1.

Answer:

Total interest paid:$112.65

Total payments:$632.65

Step-by-step explanation:

Answer:

gg

Step-by-step explanation:

The amount borrowed is $66,000, the annual interest rate is 4 %, the number of payments per year is 12, the loan term is 20 years, and the payment amount is $10668.39.

Compound interest is applicable when there will be a change in the principle amount after the given time period.

For example, if you give anyone $500 at the rate of 10% annually then $500 is your principle amount. After 1 year the interest will be $50 and hence principle amount will become $550 now for the next year the interest will be $550, not $500.

The total amount paid is,

A = 4800[1 + 0.04/12]^(12 x 20)

A = $10668.39

Hence "The amount borrowed is $66,000, the annual interest rate is 4 %, the number of payments per year is 12, the loan term is 20 years, and the payment amount is $10668.39".

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Let (r,q) represent P's polar coordinates, with r being positive and 0 equaling q being pi/2. If so, r = 3m. And A = 0.20136

All points in a plane that are at a specific distance from a specific point, the center, form a circle.
Formula for the first circle: x²+ y² = 9

Formula for the second circle:

center is (0, 7.5) and the radius is 15/2, so

x² + (y - 7.5)² = (7.5)²

Combining these yields:

9 - y² + (y - 7.5)² = (7.5)²

9 - y² + y² - 15y + (7.5)² = 7.5²

9 - 15y = 0

y = 9/15 = 3/5

∴ y = 0.6

x² + y² = 9 = x² + (3/5)²

x² = 9 - (9/25)

x² = [(225 - 9)/25] = 216/25

∴ x = 2.9394

r = √(x² + y²) =

r = √[( 216/25) + (9/25)]

r = √(225/25) = 15/5
∴ r = 3

The x and y values appear to be accurate because this must be the same as the radius of the circle cantered at the origin.

sin(A) = y/r

sin(A) = (3/5)/3 = 1/5

Sin(A) = 0.2

∴ A = 0.20136

COMPLETE QUESTION:

A circle C has center at the origin and radius 4. Another circle K has a diameter with one end at the origin and the other end at the point (0,14). The circles C and K intersect in two points. Let P be the point of intersection of C and K which lies in the first quadrant. Let (r,q) be the polar coordinates of P, chosen so that r is positive and 0 = q =pi/2. Find r and q.

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0.933 is approximate probability that x is less than 6.3 (round off to third decimal place).

What is Probability?

Calculating or estimating how likely or "possible" something is to occur is the subject of probability.

                     Words like "certain," "impossible," or "probable" can be used to express the likelihood of an event occurring.

                      Probabilities in mathematics are always represented as fractions, decimals, or percentages with values ranging from 0 to 1.

Given X₁,X₂, ............X₃₀₀ are IID random samples from Xi ~ Gamma ( shape = 3 scale = 2 ) . The mean and variance are

     E(Xi) = 3 * 2 = 6

      Var (Xi) = 3 * 2² = 12

According to CLT,

                 X =  X₁ + X₂ +  ............+ X₃₀₀/300

has approximately normal distribution X ~ N( 6,12/300) So the probability,

       P( X < 6.3 ) = P( Z < 6.3 - 6/√12/300

    P ( X < 6.3 ) = P( Z < 1.5 )

    P (X < 6.3 ) = Ф (1.5 )

     P (X < 6.3 ) = 0.933

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The quadratic equation will be written as F(x) = -2x² - 4x + 1.

A quadratic equation is a polynomial with a degree of 2 or the maximum power of the variable is 2 in quadratic equations. It has two solutions as its maximum power is 2.

The point from which the quadratic equation passes are,

(0,1), (-1,3), and (-2,1).

The quadratic equation will be written as,

y =ax²+ bx +c

For point (0,1)

1 = 0 + 0 + c

c = 1

For points (-1,3),

3 = a - b + c

3 = a - b + 1

a - b = 2

For point (-2,1),

1 = 4a - 2b + c

1 = 4a - 2b + 1

4a = 2b

b = 2a

calculate the values of a and b,

a - b = 2

a  - 2a = 2

-a = 2

a = -2

b = 2a = 2 x -2 = -4

The quadratic equation will be written as,

F(x) = -2x² - 4x + 1

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The total years taken to double the money according to Compounding will be 12.5  years.

What is compound interest?

Compound interest is that the interest on savings calculated on each the initial principal and therefore the accumulated interest from previous periods.

Main body:

Given :

rate = 6%

amount = $900

Total amount = $1800

Compounded monthly,

so formula becomes,

Total amount = amount (1+r/1200)^12t

T = A[tex](1+r/1200)^{12t[/tex]

1800 = 900 (1+6/1200)^12t

2 = (1+1/200)^12t

2 = 1.005^12t

taking log on both sides

log 2 = 12t *log 1.005

0.3/0.002 = 12t

t = 12.5 years

Hence the time taken to double the money is 12.5 years.

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a) The Test statistic of the hypothesis is; 0.81

b) The p-value from the test statistic is; 0.20897.

c) The final conclusion is that there is not sufficient evidence to reject the null hypothesis that (p1 - p2) = 0

Test statistic is defined as a number, calculated from a statistical test, used to find if your data could have occurred under the null hypothesis. In this case, we are dealing with proportions and as such the test statistic has the formula;

z = (p1 - p2)/standard error

p1 = 53/90 = 0.59; s1 = √(0.59 * 0.41/90) = 0.052

p2 = 48/90 = 0.53; s2 = √(0.53 * 0.47/90) = 0.053

Hence, for the distribution of differences, the mean and the standard error are given as follows:

Mean: p = 0.59 - 0.53 = 0.06

Standard error: s = √(0.052² + 0.053²) = 0.074

a) Test statistic = p/s = 0.06/0.074

Test statistic = 0.81

b) From p-value from z-score calculator, we get that;

p-value = 0.20897.

c) The p-value is greater than the significance value of 0.05, we fail to reject the null hypothesis and conclude that there is not suffucuent evidence to reject the null hypothesis that (p1 - p2) = 0

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To find the coordinates of a point on a circle with radius 10 corresponding to an angle of 325 degrees, you can use the following formula:

(x, y) = (r * cos(θ), r * sin(θ))

where (x, y) are the coordinates of the point, r is the radius of the circle, and θ is the angle in radians.

To convert the angle from degrees to radians, you can use the following formula:

θ (radians) = θ (degrees) * (π / 180)

Substituting the values into the formula and converting the angle to radians, you get:

(x, y) = (10 * cos(325 * (π / 180)), 10 * sin(325 * (π / 180)))

= (-5.5, 9.5)

Therefore, the coordinates of the point on the circle with radius 10 corresponding to an angle of 325 degrees are (-5.5, 9.5).

What are the coordinates point?

The coordinates of a point in a coordinate system are a set of numerical values that specify the position of the point in relation to an origin. In a two-dimensional coordinate system, such as the Cartesian coordinate system, a point is represented by an ordered pair (x, y), where x and y are the coordinates of the point. The x-coordinate represents the point's position along the horizontal axis, and the y-coordinate represents the point's position along the vertical axis.

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The amount A in an account to the nearest cent, the amount A in the account after 10 years is $30,441.65.

Generally, To find the amount A in the account after 10 years, we can use the formula for continuous compound interest:

A(t) = A(0) * e^(rt)

where A(t) is the amount in the account after t years, A(0) is the initial amount in the account, r is the interest rate, and t is the number of years.

In this case, we know that A(0) = $15,000, A(8) = $22,377.37, and t = 10 years. We can rearrange the formula to solve for r:

r = (1/t) * ln(A(t)/A(0))

Substituting the known values, we get:

r = (1/10) * ln(22377.37/15000)

Solving this equation, we get r = 0.0658082.

Now that we have the value of r, we can use the formula for continuous compound interest to find the amount A in the account after 10 years:

A(10) = 15000 * e^(0.0658082 * 10)

Solving this equation, we get A(10) = $30,441.65.

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The p-value of the test is 0, which is less than the standard significance level of 0.05, thus we can conclude that the proportion respondents who rated themselves as above average drivers is greater than 0.7.

We may test the following using the example data:

In reality, 812.35 respondents identified as better drivers than average.

We can infer that the proportion of respondents who rated themselves as above average drivers is greater than 0.7 because the test's p-value is 0, which is less than the standard significance level of 0.05. 77% of the sample of 1055 adults rated themselves as above average drivers, so 0.77(1055) = 812.35.

As a result, 812.35 respondents actually assessed themselves as better drivers than average.

We examine if the proportion is 7/10=0.7 at the null hypothesis.

H0 is that, with p = 0.7.

If the proportion is larger than 70%, we test for the alternative hypothesis, which is H1:p>=0.7.

The test statistic comes from:

The parameters for this issue are p dash = 0.77, p = 0.7, and n = 1055.

As a result, the test statistic's value is:

z = 351.758 root

The likelihood of discovering a sample proportion above 0.77, calculated as 1 minus the p-value of z = root of 351.758, is the test's p-value.

According to the z-table, the p-value for z = root of 351.758 is 1, and 1 - 1 equals 0.

Since the test's p-value is zero and is below the conventional significance level of 0.05, we can infer that a higher proportion of respondents than 0.7 evaluated themselves as above-average drivers.

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Answer:

[tex]\huge\boxed{\sf Option \ 2}[/tex]

Step-by-step explanation:

Given that,

8 + (n - 4)

According to Associative Property:

Using Associative property for the given expression.

We get:

[tex]\rule[225]{225}{2}[/tex]

The answer to this question is = 12 + n is the expression not equivalent to 8 + (n - 4)

Let us consider any random value of n for example let us take the value of n = 5

As per the original equation given in question 8 + (n - 4) if we substitute the value of n = 5

= 8+ (5 - 4)

= 8+1

= 9

Now we will be substituting the value of n in all the answer options-

Option 1- (8 - 4) + n

= (8 - 4) + 5

= 4 + 5

= 9

Therefore, this answer matches the original equation so this is not the correct option

Option 2- (8 + 4) - n

= (8 + 4) - 5

= 13 - 5

= 9

Therefore, this answer matches the original equation so this is not the correct option

Option 3- n+4

= 5 + 4

= 9

Therefore, this answer matches the original equation so this is not the correct option

Option 4- 12 + n

= 12 + 5

= 17

Therefore, this answer does not match the original equation so the correct option is = 12 + n

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The graph of the given function f(x)=|x−6|−4 is shown where the line is parallel to the x-axis.

A graph is a structure that resembles a set of items in discrete mathematics, more specifically in graph theory, in which some pairs of objects are conceptually "connected."

The items are represented by mathematical abstractions known as vertices, and each pair of connected vertices is referred to as an edge.

Write the equation in the form y = MX + b to determine the slope m and the y-intercept.

This will allow you to graph the equation using the slope and y-intercept (0, b).

So, the given function is: f(x)=|x−6|−4

Take f(x) as 0 which means:

f(x)=|x−6|−4 = 0

Now, graph the function as follows:
(Refer to the graph attached below)

The line is parallel to the x-axis.

Therefore, the graph of the given function f(x)=|x−6|−4 is shown where the line is parallel to the x-axis.

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Answer:

  x = y = 60

Step-by-step explanation:

You want the values of angles marked x° and y° in the given figure involving equilateral triangles and parallel lines.

All of the triangles in the figure are congruent equilateral triangles. Each of their internal angle measures is 60°.

  x° = y° = 60°

__

Additional comment

The (inside) base angles of the outside two triangles are alternate interior angles with respect to the top two angles of the center triangle. Hence they are congruent. The center triangle is marked as equilateral, so its angles are all 60°. That means all of the acute angles in the figure are 60°.

Answer:

0.009

Step-by-step explanation:

0.00892

first significant figure will be

0.00900

or = 0.009

i hope this helps

Answer:

0.009

Step-by-step explanation:

0.00892(a significant figure is a number greater than zero)

so the first number after zero is 8

the next number is 9, so round 9 up and it becomes 1.

Add 1 to 8 to give you 9

=0.00900 or 0.009

Hope it helped you

The required value of dosage in mg/min is given as 8 mg/min.

A ratio is the relation between two numbers as a / b. A proportion is the equality of two ratios as a / b = c / d.

Ratio and proportion can be applied to solve Mathematical problems dealing with unit values of the quantities.

Given that,

The dose administered per hour is 60 mL/hr.

And, the infusion is given as 4g for 500 mL.

In order to calculate the dosage in mg/min, ratio and proportion method can be used as follows,

The 500 mL is for 4g.

Then for 1 mL, there is 4/500 g.

Thus, for 60 mL, there is 4/500 × 60 g.

Since 1 g = 1000 mg.

The above expression can be written as,

4/500 × 60 × 1000 mg = 480 mg

Now, the dosage can be calculated as,

480 mg/hr

= 480/60 mg/min

= 8 mg/min

Hence, the dosage in milligram per minutes is given as 8 mg/min.

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