Question

A car got 28 miles per gallon using gasoline that costs $2.25 per gallon. Approximately what was the cost, in dollars of the gasoline used in driving the car for 238 miles?
a)$19
b)$20
c)$25
d)$30
e)$35​

Answer 1

Answer:

c) $25

Step-by-step explanation:

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Answer 2

Answer:

This is a two step problem. First we need to determine the number of gallons the car uses to drive the 250 miles:

250/28 ≈ 8.93 gallons

Then we just multiply the number of gallons by the price:

8.93 x 2.90 = $25.90

Alternate solution: Use a proportion. Since 1 gallon costs $2.90 and produces 28 miles, we can set up the following proportion:

2.90/28 = x/250

Cross-multiply and solve:

28x = 725

x = $25.89 (There is a one cent difference due to a rounding error in the first solution. This solution avoids that error.)