Question

I need help with this please

Answer 1

The equation is y = 125 + 0.1x

If the cost was $150, then the number of miles driven is 250.

Explanation:

For a week, the cost of renting a car is $125 plus 0.1 for every mile driven.

Therefore, if we call y the total cost and x the number of miles driven then the cost for x miles driven will be

`y=125+0.1x`

Now, if the weekly cost is $150, then y = 150; therefore,

`150=125+0.1x`

subtracting 125 from both sides gives

`150-125=0.1x`
`25=0.1x`

Finally dividing both sides by 0.1 gives

`(25)/(0.1)=x`
`x=250.`

Therefore, if the weekly rental cost is $150, then the number of miles driven is 250 miles.