On a 1287 mile long road trip in windy conditions, a family calculates their fue

Question

On a 1287 mile long road trip in windy conditions, a family calculates their fuel economy to be 18 miles per gallon over the 2 days it takes to reach their destination. On their 2-day return trip, with a similar wind at their backs, their calculations show a fuel economy of 26 miles per gallon. Calculate the expected fuel economy of their vehicle in ideal (non-windy) conditions (f) as well as the influence of the wind (w) in miles per gallon. Compare how many gallons of fuel they used for the round trip to the expected usage in ideal (non-windy) travel conditions. Which uses more? By how many gallons? Round to the nearest hundredth, if necessary.

Explanation / Answer

. Gallons each way for ideal trip = 1287/22 = 58.5 (here 22 is the average of 18 and 26 in non windy condition)

Total gallons used = 58.5*2 = 117 gallons

in windy conditions = 49.5 + 71.5 = 121 gallons

so windy conditions use more gallons, by 4

Related Questions

Navigate

• Browse (All)
• Browse O
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.