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FinnZ [79.3K]
3 years ago
10

If 4x+(y+x)=180what is x? what is y?​

Mathematics
1 answer:
uysha [10]3 years ago
7 0

Step-by-step explanation:

4x+(y+x)=180\\\\\text{Solve for}\ x:\\\\4x+y+x=180\qquad\text{combine like terms}\\\\(4x+x)+y=180\qquad\text{subtract}\ y\ \text{from both sides}\\\\5x=180-y\qquad\text{divide both sides by 5}\\\\\dfrac{5x}{5}=\dfrac{180-y}{5}\\\\\boxed{x=\dfrac{180-y}{5}}\\\\\text{Solve for}\ y:\\\\5x+y=180\qquad\text{subtract}\ 5x\ \text{from both sides}\\\\\boxed{y=180-5x}

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The cost of renting roller blades is $4 plus $3.50 for each hour that the roller blades are rented. Write an expression to repre
Pavel [41]

Answer:

The expression is equal to 3.50h+4

Step-by-step explanation:

Let

x ----> the number of hours that the roller blades are rented

y ----> the cost of renting roller blades in dollars

we know that

The linear equation in slope intercept form is equal to

y=mx+b

where

m is the slope or unit rate of the linear equation

b is the y-intercept or initial value of the linear equation

In this problem we have

The slope is equal to

m=\$3.50\ per\ hour

The y-intercept is equal to

b=\$4 ----> value of y when the value of x is equal to zero

substitute

y=3.50x+4

For x=h hours

substitute

y=3.50h+4

3 0
3 years ago
Molly had a $12 gift card to download music. She bought 8 songs that each cost the same amount. Write a variable equation, then
Ghella [55]

Answer:

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Step-by-step explanation:

Let

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we know that

The amount that Molly paid for each song multiplied by 8 is equal to the gift card value

so

The linear equation that represent this problem is

8x=12

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4 0
3 years ago
Can you draw trapezoid three right angles
Hunter-Best [27]
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3 years ago
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ArbitrLikvidat [17]
2(4x - 7) -1 = 11
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3 0
3 years ago
Will mark brainliest if correct !
Ira Lisetskai [31]

Answer:

11

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
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