Question

An automobile uses 17 gal of fuel to go to 590mi. How many gallons are required to travel 870mi? (Round your answer to one decimal)

Answer 1

Answer:

$Gallons = 27.95$

Step-by-step explanation:

Given

$Gallons : Miles = 17:590$

Required

Determine the number of gallon for 870 miles

To do this, we simply substitute 870 for miles in the ratio above

So, we have:

$Gallons : 870= 17:590$

Convert to fraction

$\frac{Gallons}{870} = \frac{17}{590}$

Multiply through  by 870

$870 * \frac{Gallons}{870} = \frac{17}{590}*870$

$Gallons = \frac{17}{590}*970$

$Gallons = \frac{17*970}{590}$

$Gallons = \frac{16490}{590}$

$Gallons = 27.95$