Answer:
x = charge for babysitting = $3
y = charge for doing odd jobs = $5
Step-by-step explanation:
Let
x = charge for babysitting
y = charge for doing odd jobs
8x + 3y = 39 (1)
2x + 5y = 31 (2)
Multiply (1) by 5and (2) by 3
40x + 15y = 195 (3)
6x + 15y = 93 (4)
Subtract (4) from (3)
40x - 6x = 195 - 93
34x = 102
Divide both sides by 34
x = 102 / 34
= 3
x = $3
Substitute x = 3 into (1)
8x + 3y = 39
8(3) + 3y = 39
24 + 3y = 39
3y = 39 - 24
3y = 15
y = 15 / 3
= 5
y = $5
x = charge for babysitting = $3
y = charge for doing odd jobs = $5
a city has a garden in the shape of an equilateral triangle with 40 feet sides. there is a walkway that runs from a gate located at the midpoint of one side of the equilateral triangle to a fountain at the opposite vertex. approximately how long is the walkway?
Answer:
The walkway is approximately 34.64 feet long
Step-by-step explanation:
The length of the sides of the equilateral triangle shaped the city garden = 40 feet
The path of the walkway = From the midpoint of a side to the opposite vertex
Therefore, we have;
Let x, represent the length of the walkway
We have that the x, a side of the equilateral triangle, and half the side of the location of the gate, forms a right triangle, with a side of the equilateral triangle representing the hypotenuse side
Therefore, we have;
40² = x² + (40/2)²
40² = x² + 20²
x² = 40² - 20² = 1200
x = √1200 = 20·√3
The length of the walkway = x = 20·√3 ≈ 34.64 feet.
Is this graph
a function
A. Yes
B. No
PLEASE HELP
14 POINTS OR BRAINLIST
Answer: A
Step-by-step explanation:
Which expression is equivalent to 6(8−n)−8 ?
Answer:
48-6n-8
40-6n
Step-by-step explanation:
Answer:
40-6n
Step-by-step explanation:
if on imagine math it is 40-6n
Please help
How many solutions can be found for the system of linear equations represented on the graph?
A)
no solution
B)
one solution
C)
Two solutions
D)
Infinitely many solutions
Answer: One solution
Step-by-step explanation:
When the lines intersect in one spot, there's one solution. The lines have different slopes, so there's only one solution.
A shadow 16 meters long is cast by a utility pole that is 12 meters tall. What is the length of
the shadow cast by a nearby apple tree that that is 6 meters tall?
Write your answer as a whole number or a decimal. Do not round.
Answer:
10
Step-by-step explanation:
in the example,-38+(-24)will be negative before finding the sum?
Answer:
-62
Step-by-step explanation:
Heyyyyy plz help I don’t bite
Answer:
50.24
Step-by-step explanation:
A = Πr^2
A = 3.14(4)^2
A = 50.24
Someone help meee I hate my teacher she asssign nvm I’m not even gonna say
Answer:
eating lunch
Step-by-step explanation:
the total time is 60 minutes. 10 minutes is 1/6 of that. 1/6 of 18 (from eating lunch) is 3 minutes. eating lunch is correct. also i hate my teacher sm too
Simplify this equation. 20 points i think?
3/5x + 19 - 3/20x - 7
(Please show and explain what you did to simplify this problem because it doesnt make sense to me at all)
Answer:
Hey buddy, here is your answer. Hope it helps you.
Step-by-step explanation:
3/5x+19-3/20x-7
First convert the fractions so they have a common denominator and rearrange
12/20x-3/20x+19-7
9/20x+12
Please help!
Find the slope
-2x + 4y = 36
Thank you!
v A square garden has an area of 110 square feet. a. What is the approximate length of one side of the garden? Round to the nearest tenth.
One afternoon, Supreme sub shop sells 15 subs in 45 minutes. If the shop continues to sell subs at the same rate, about how many subs will the shop sell in 3 hours?
if you are good at math please help me answer all 4 please
Can y'all please help me with this !!!/!/!???......itz all in the pic
Complete all to get brainliest
~thanks~✌
Make a table of ordered pairs for the equation.
y= -1/3x+1
Then plot two points to graph the equation.
It’s a 10 by 10 graph and it has 4 areas
Answer:
Graph the line using the slope and y-intercept, or two points.
Slope: -1/3
Y-Intercept: (0,1)
The next model of a sports car will cost 14.1% less than the current model. The current model costs $55,000 . How much will the price decrease in dollars? What will be the price of the next model?
Answer:
$3900.71 is the amount of money subtracted from the next model
51099.29 is the cost of the second model
Step-by-step explanation:
Express it in slope-intercept form.
Are these shapes similar? If so please explain
Answer:
yes
Step-by-step explanation:
because it is the same shape.
The carnival fundraiser at Westville Elementary School raised $300 on Friday. On Saturday, the carnival will raise 480 percent of that amount. Which statements are true about the amount of money that the carnival will raise on Saturday? Check all that apply.
The missing options in the question are:
a.) The answer will be less than $300 because 100 is less than 480.
b.) The answer will be greater than $300 because 480 is greater than 100.
c.) (100)(3) = 300, so 480(3) is the amount of money that the carnival will raise on Saturday.
d.) 480 + 300 is the amount of money that the carnival raised on Saturday.
e.) The carnival raised $780 on Saturday.
f.) The carnival raised $1,440 on Saturday.
Answer:
The correct options are: (b), (c), (f)
Step-by-step explanation:
Given that:
The carnival fundraiser raised $300 on Friday
On Saturday, It was stated that the carnival fundraiser will raise 480 percent of the amount raised on Friday;
i.e.
= (480% × 300)
[tex]= \dfrac{480}{100} \times 300[/tex]
= 480 (3)
= $1440
So; we are to check the given option and choose the statements that are true about the amount of money that will be raised at the carnival on Saturday.
From the above explanation;
The true statements are:
The answer will be greater than $300 because 480 is greater than 100.
(100)(3) = 300, so 480(3) is the amount of money that the carnival will raise on Saturday.
The carnival raised $1,440 on Saturday.
does anyone know how to factor this?
What is the precision of the measurement 10 feet?
Answer:
You measure the length of the paper three times and obtain the following measurements: 11.1 in., 11.2 in., and 10.9 in.
what is 7.0 divided by the power of 3
Answer:
7/3
Step-by-step explanation:
Explain how to simplify an expression with negative exponents using the rules for multiplying monomials.
PLZZZZZ I NEED HELP ILL MAKE YOU BRAINLIEST
Answer:
Purplemath
Recall that negative exponents indicates that we need to move the base to the other side of the fraction line.
(The "1's" in the simplifications above are for clarity's sake, in case it's been a while since you last worked with negative powers. One doesn't usually include them in one's work.)
In the context of simplifying with exponents, negative exponents can create extra steps in the simplification process.
Step-by-step explanation:
Which domain would be most appropriate to the number of download songs?
Answer:
Step-by-step explanation:
B. Because your domain is the number of songs someone will purchase
Helpp!
Shamir is trying to decide between two cities to travel to for a weekend trip. The prices for a hotel room for two nights and the hotel tax rate are listed in the table
| city | cost ($) | Tax rate |
| A | 250 | 12.5% |
| B | 215 | 14.75% |
What is the difference in cost between the two cities for a weekend trip? Round to nearest cent
Answer:
$34.54Step-by-step explanation:
city A
$250 x 1.125 $281.25city B
$215 x 1.1475 $246.713difference between the two cities = $281.25 - $246.713
= $34.54
The difference in cost between the two cities for a weekend trip will be $34.54.
What is the percentage?The quantity of anything is stated as though it were a fraction of a hundred. A quarter of 100 can be used to express the ratio. Per 100 is what the term percent signifies. The symbol ‘%’ is used to symbolize it.
Shamir is trying to decide between two cities to travel to for a weekend trip. The prices for a hotel room for two nights and the hotel tax rate are listed in the table.
City Cost ($) Tax rate
A $250 12.50%
B $215 14.75%
Then the difference in cost between the two cities for a weekend trip will be given as,
⇒ $250 × 1.1250 - $215 × 1.1475
⇒ $281.25 - $246.71
⇒ $34.54
The difference in cost between the two cities for a weekend trip will be $34.54.
More about the percentage link is given below.
https://brainly.com/question/8011401
#SPJ5
6 = 2(y + 2)
Solve for Y.
Answer:
6=2(y+2)
distributive property
6=2(y)+2(2)
6=2y+4
-4 -4
2=2y
-- --
2 2
divide two in both sides to get y by itself
y=1
Answer:
y = 1
Step-by-step explanation:
6 = 2 (y + 2)
Distribuite:
2 * y = 2y
2 * 2 = 4
2y + 4 = 6
Use additive inverses. The additive inverse of addition is subtraction.
Subtract 4 from both sides:
2y + 4 - 4 = 6 - 4
6 - 4 = 2
2y ÷ 2 = 2 ÷ 2
2y ÷ 2 = y
2 ÷ 2 = 1
To check our answer we multiply how much y is (which is 1) by 2.
2(1) + 4 = 6
2 * 1 = 2
2 + 4 = 6.
The Answer and yea idk
Graph for 4x + 3y = -3
Answer:
Your answer is: Slope = [tex]-\frac{4}{3}[/tex] Y-intercept = [tex](0,-1)[/tex]
Graph the line using the slope and y-intercept, or two points.
Step-by-step explanation:
Graph Below : ↓
Hope this helped : )
Solve for x,
-4/5x -3/20
x + 1/4x = -70
Answer:
x=100
Step-by-step explanation:
Simplify -4/5x-3/20x+1/4x
-7x/10=-70
Multiply both sides of the equation by -10/7.
-10/7*(-7x/10)=-10/7*-70
Simplify both of the equation.
x=100
80 points!
A store had 250 bottles of water. Each week, 40% of the bottles were sold and 48 new bottles arrived in shipments.
Which recursive function best represents the number of bottles of water in the store, given that f(0) = 250?
A. f(n) = f(n − 1) ⋅ 0.6 + 48, n > 0
B. f(n) = 250 − f(n − 1) ⋅ 0.4 + 48, n > 0
C. f(n) = f(n − 1) ⋅ 0.4 + 48, n > 0
D. f(n) = 250 − f(n − 1) ⋅ 0.6 + 48, n > 0
pls give reason
Answer:
A
Step-by-step explanation:
Given:
Initial number of bottles = 250
Every week = 40% is sold and 48 bottles arrive.
Week 1 = 250 - (250 x 0.40) + 48 = 250 - 100 + 48 = 198
Week 2 = 198 - (198 x 0.40) + 48 = 198 - 79 + 48 = 167
Answer is: A. f(n ) = f(n - 1) • 0.6 + 48, n > 0.