Answer:
12.11 gallons
Step-by-step explanation:
Ciara's car used gas on 160 mile road trip = \(7\frac{3}{4}\) gallons
= \(\frac{31}{4}\) gallons
Ciara's car used gas on 1 mile road trip = \(\frac{\frac{31}{4}}{160}\)
= \(\frac{31}{4}\times \frac{1}{160}\)
= \(\frac{31}{640}\) gallons
Ciara expect to use on a 250 mile road trip = \(\frac{31}{640}\times 250\)
= \(\frac{775}{64}\)
= \(12\frac{7}{64}\)
≈ 12.11 gallons
Ciara should expect to use \(12\frac{7}{64}\) or 12.11 gallons of gas.
