what is the slope- intercept form of 4x+5y=20
Answer:
y = -4/5x + 4
General Formulas and Concepts:
Pre-Algebra
Equality PropertiesAlgebra I
Standard Form: Ax + By = C
Slope-Intercept Form: y = mx + b
m - slope b - y-interceptStep-by-step explanation:
Step 1: Define
Standard Form: 4x + 5y = 20
Step 2: Rewrite
Subtract 4x on both sides: 5y = 20 - 4xDivide 5 on both sides: y = 4 - 4/5xRearrange: y = -4/5x + 4x-4y=-12
what is this supposed to equal
Answer: X- 4y - 12=0
step by step explanation:
First, move the constant to the left by adding its opposite to both sides
x-4y -12 = 12-12 =
X-4y-12 = 0
So the answer is X- 4y - 12=0
The difference between (4 tens 12 tenths and 25 hundredths) and (3 tens 14 tenths and 45 thousandths) is
Which table represents a quadratic function?
.
2
f(x)
6
f(x)
-9
f(x)
-5
-3
Sx)
0.25
-2.
-1
1-2
-2
-1
3
-1
-4.5
0 | |N| دي |
-2
-1
0
0.5
1
o
0
-1
0
1
1
1
No
4.5
1
2
2
4
N
0|
2
3
9
o
o
o
Answer:
C
1/3y - 7/5×+ 2/3-2/3 y- 4/9
How much does a customer pay for an article marked at $50 if a sales tax of 6% is charged?
Answer:
53$
Step-by-step explanation:
6% of 50 is 3, 50+3=53
2) The spinner was spun 60 times. On 20 out of 60 times, the arrow landed on a blue section. What is the experimental probability of landing on a section that is blue?
Can you help me solve x it would help me a lot thanks
(a) Omar changed 800 rands into dollars when the rate was $1 = 6.25 rands.
(i)
How many dollars did Omar receive?
Answer:$128
Step-by-step explanation:
If $1=6.25 rands then we must divide 800 by 6.25
Help plz idc who.... Thx:)
7/12 of a foot = how many inches
Answer:
Required Answer:-As we know that
[tex]\sf 1 \:Foot=12inches [/tex]
[tex]{:}\longrightarrow[/tex][tex]\sf {\dfrac {7}{12}}\:of \; 12 [/tex]
[tex]{:}\longrightarrow[/tex][tex]\sf {\dfrac {7}{{\cancel {12}}}}\times{\cancel { 12 }}[/tex]
[tex]{:}\longrightarrow[/tex][tex]{\underline{\boxed{\bf 7inches}}}[/tex]
I have tried this for almost 20 mins
, I might give up soon
Answer:
x=1
y=3
z=-2
Step-by-step explanation:
Use substitution to solve two systems and then the third.
Amber is designing cylindrical containers that are each 2 meters tall. Which graph
shows the relationship between the radius (x) of each cylinder and its volume (/)?
Answer:
Step-by-step explanation:
Answer:
Look at pik...........................................
The ages of armadillos are normally distributed, with a mean of 14 years and a standard deviation of 1.2. Approximately what percentage of the armadillos are between 13 and 17 years old? 20.33% 49.38% 47.62% 79.05%
Answer:
20.33%
Step-by-step explanation:
Answer:
D) 79.05%
Step-by-step explanation:
I JUST TOOK DA TEST
Math Problem! please help!
Michael started a savings account with $300. After 4 weeks, he had $350 dollars, and after 9 weeks, he had $400. What is the rate of
change of money in his savings account per week?
Person to answer get prize
Pls help
Answer:
$12.5
Step-by-step explanation:
all you do is divide the 4 weeks to the $50 he earns and get $12.5 every week.
I neeed helppp please
Answer:
answer is 50
Step-by-step explanation:
x =180-(65+65)
x=180-130
x=50
value expressions-10-(-4)=
Answer:
6
Step-by-step explanation:
Answer:
-6
Step-by-step explanation:
-10 - (-4)
-10 + 4 = -6
this is just to understand it more:
10 negatives
- - - - - - - - - -
+ + + +
4 positives
the 4 positives cancel out the 4 negatives which leave you with 6 negatives left -6 is the answer
All of the following would be evidence that you do not have a normal distribution except:
A. the presence of multiple modes
B. the fact that 75% of the observations have a value below the mean
C. a normal quantile plot suggests an obviously curved line
D. the likelihood for all values of x is the same
E. none of the above.
will mark brainliest :)
None of the above given statements are the evidence that you do not have a normal distribution.
What is Normal distribution?A function that represents the distribution of many random variables as a symmetrical bell-shaped graph.Mathematically, we can write the probability density function as -[tex]$f(x)= {\frac{1}{\sigma\sqrt{2\pi}}}e^{- {\frac {1}{2}} (\frac {x-\mu}{\sigma})^2}[/tex]
where -
f(x) : probability density function
σ : standard deviation
μ : mean
Given are the statements regarding the normal distribution.
Of the given statements, none of the above are the evidence that you do not have a normal distribution
Therefore, none of the above given statements are the evidence that you do not have a normal distribution.
To solve more questions on normal distribution, visit the link below -
https://brainly.com/question/15103234
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I need help
9/2 x 1/4
Answer:
1 1/8
Step-by-step explanation:
Answer:
1 1/8
Step-by-step explanation:
brainliest promised. very easy. 6th grade stuff
Answer:
the answer is b
Step-by-step explanation:
Answer:
B.
Step-by-step explanation:
Divide 288 by 6.
(288 points)/(6 games ) =
To simplify the fraction, divide the numerator and denominator by 6.
= 48 points/game
Answer: B.
Rate my looks from 1/10 and pls dont judge me i woke up early and got no sleep last night plss
Answer:
10 million out of 10
Step-by-step explanation:
Answer:
30 thousand/10
Step-by-step explanation:
i wish i looked that good without sleep! XD
The first term of an arithmetic sequence is -5, and the tenth term is 13. Find the common difference.
(A) 1.8
(B) 2
(C) 8/9
Help me find Z in the diagram
Answer:
z=68°
Step-by-step explanation:
z is congruent to the given angle
hopefully this helps :)
Answer:
z = 56°
Step-by-step explanation:
Since the 2 sides are congruent then the triangle is isosceles, thus
The base angles are congruent, then
z = [tex]\frac{180-68}{2}[/tex] = [tex]\frac{112}{2}[/tex] = 56°
Find the value of X in this picture
Answer:
x = 120 degrees
Step-by-step explanation:
a hexagon has a total of 720 degrees
720- 130-140-150-90-90= 120
simplify 6-12b divided by 3a-6ab
Answer:
[tex]\frac{2}{a}[/tex]
Step-by-step explanation:
Given
[tex]\frac{6-12b}{3a-6ab}[/tex] ← factor both numerator and denominator
= [tex]\frac{6(1-2b)}{3a(1-2b)}[/tex] ← cancel common factor (1 - 2b) on numerator/denominator
= [tex]\frac{6}{3a}[/tex] ← cancel 6 and 3 by 3
= [tex]\frac{2}{a}[/tex]
A circle has a diameter of 4.8 cm. Find, rounded to 2 decimal places, its area and perimeter
Answer: Perimeter → 15.07964474
Area→ 18.09557368
Which row of Pascal’s triangle would you use to expand (2x + 10y)15? row 10 row 12 row 15 row 25
Answer:
Row 15 is correct
Step-by-step explanation:
Pascal's triangle:
1 n = 0 , Row = 0
1 1 n = 1 , Row = 1
1 2 1 n = 2 , Row = 2
:
.........
.......
For n = 0, Row number 1
For n = 1, Row number 2
For n = 2, Row number 3
We make pascal's triangle but sum of above two number, write below.
As we can see in pascal's triangle.
Exponent represent the number of row.
If binomial has exponent n then nth row of pascal's triangle use.
For
Here power is 15
So, we have to use 15 row of pascal's triangle.
Hence, Row 15 is correct
Answer:
the second part is 16
Step-by-step explanation:
'SOMEBODY PLEASE HELP I WILL GIVE YOU A BRAINLIEST
PROP/CONSTANT
A factory makes 36 cookies in 12 mins. How many cookies can they make in ONE minute?
6 cookies
4 cookies
3 cookies
2. A bathtub leaks 1/2 cup of water every 1/4 minute. How many cups of water leak every minute?
3 1/2 cups
1 cup
2 cups
3. 5 glazed donut has 750 calories altogether. How many calories are in TWO donuts?
300 calories
150 calories
450 calories
4. A cell phone company charges $70 for 2 months of service, and $210 for 6 months of service. What is the constant rate (per month) for the service?
$40 per month
$35 per month
$55 per month
5. Which is the formula to find the constant of a chart?
k = y/x
y = kx
x = k/y
6. A chart is not considered proportional if...
the chart has too many large numbers
the x values are bigger than the y values
if the y values are bigger than the x values
if there is no constant (k)
Use the chart below for questions 7 and 8
7. Is the chart above proportional?
Yes
No
8. Determine the constant(k) of the chart.
k = .75
k = 1.75
k = 2.15
Doesn't have a constant
Use the chart below to answer questions 9 - 12.
9. Is the chart above proportional?
8 points
Yes
No
10. Determine the constant(k) of the chart?
10 points
k = 5
k = 4
k = .25
11. Which formula satisfies an equation for Y.
y = 4x
y = .25x
y = 5x
12. Find the value of y when x is 49.
12.25
196
80
18
Answer:
1. 3 cookies
2. 2 cups
3. 300 calories
4. $35 per month
5. k = y/x
6. If there is no constant (k)
Step-by-step explanation:
1. The number of cookies the factory makes in one minute = (The number of cookies the factory makes in 12 minutes)/(12 minutes)
∴ The number of cookies the factory makes in one minute = 36 cookies/(12 minutes) = 3 cookies/minute
The correct answer is 3 cookies
2. The number of cups of water that leak every minute = (The number of cups of water that leak in 1/4 minute) × (The number of 1/4 minute per minute)
The number of cups of water that leak every minute = 1/2 cup per 1/4 minute × 4_1/4 minute per minute
The number of cups of water that leak every minute = 1/2 × 4 = 2
The number of cups of water that leak every minute = 2 cups
3. 5 glazed donuts contains 750 calories
∴ 1 glazed donuts contains 750/5 = 150 calories
2 = 2 × 1 glazed donuts will contain 2 × 150 = 300 calories
4. The charge of the cell phone company for 2 months = $70
The charge of the cell phone company for 6 months = $210
The constant rate per month = The rate of change of the cell phones companys charges
∴ The constant rate per month = (210 - 70)/(6 - 2) = 140/4 = 35
The constant rate (per month) for the service = $35 per month
5. The formula to find the constant of a chart, k = y/x
6. A chart is not considered proportional if there is no constant (k)
Please help its my last question and I really need to submit this right about now. I’m not sure what the answer is and how I do it
Answer:
I legit answered this its 6/10
Edit: y = -6/10x + 100
Step-by-step explanation:
Change in y over change in x
60/100
6/10
Lily sold 18 items at the street fair. She sold bracelets for $6 each and necklaces for $5 each for a total of $101. Which system of equations can be used to find b, the number of bracelets she sold, and n, the number of necklaces she sold?
b + n = 101
6b + 5n = 18
b + n = 101
5b + 6n = 18
b + n = 18
6b + 5n = 101
b + n = 18
5b + 6n = 101
Answer:
6b + 5n = 101
Step-by-step explanation:
I hope this helps!
Answer:
6b+5n = 101 because if you look at each equation and back at the question you’ll understand that it’s asking for 6 bracelets plus 5 necklaces for a total of 101 dollars... hope this helped...and I need brainliest thx
Step-by-step explanation:
n is an integer.
Write down the values of n such that -8 ≤ 4n < 12
Answer: -2; -1; 0; 1; 2
[tex]-8\leq 4n<12\\\\=> -2\leq n<3[/tex]
because n is an integer => n ∈ {-2; -1; 0; 1; 2}
Step-by-step explanation:
Answer is : n ={-2; -1; 0; 1; 2}
What is number?A number is a mathematical object used to count, measure, and label. The original examples are the natural numbers 1, 2, 3, 4, and so forth. Numbers can be represented in language with number words.
here, we have,
given that,
-8 ≤ 4n < 12
=> -2≤ n <3
because, n is an integer => n ∈ {-2; -1; 0; 1; 2}
Hence, Answer is : n ={-2; -1; 0; 1; 2}.
To learn more on number click:
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