Question

1 b. A car can travel 126 miles on 7 gallons of
gasoline. How much gasoline will it need to
go 378 miles?

Answer 1

Answer:

21 gallons

Step-by-step explanation:

We can solve this problem by ratios

126 miles      378 miles

-------------- = -------------

7 gallons      x gallons

Using cross products

126 *x = 378 *7

126x =2646

Divide each side by 126

126x/126 = 2646/126

x =21

Answer 2

Your answer be 21 gallons