Question

Edgar has 7 gallons of gas ⛽️ remaining in his car after driving for 30 miles he had 4 gallons left in the tank how many gallons will be left in the take after driving 50 miles Please show work in organized steps

Answer 1

2 gallons left after driving 50 miles

Explanation:

Edgar has 7 gallons of gas remaining in his car after driving for 30 miles he had 4 gallons left in the tank

Initially he has 7 gallons of gas

after 30 miles 4 gallons left

Let m be the number of miles and g be the gallons left

(0,7) (30,4)

find slope using formula
`(y_2-y_1)/(x_2-x_1) =(4-7)/(30-0) =(-1)/(10)`

y intercept b= 7

so equation becomes

`g=mx+b\\g=(-1)/(10) x+7`

now find out g when m= 50 miles

`g=(-1)/(10) x+7\\ g=(-1)/(10)(50)+7=2`

so 2 gallons left after driving 50 miles