Math Problem Statement
Suppose that a family has two card: an SUV and a hybrid. The SUV gets 20 miles per gallon, and the hybrid gets 48 miles per gallon. Each gets driven 10,000 miles/year. What is the family’s overall average fuel efficiency? How does this compare to the simple average of values 20 and 48? Explain why simple average is not correct in this case.
Solution
Ask a new question for Free
By Image
Drop file here or Click Here to upload
Math Problem Analysis
Mathematical Concepts
Harmonic Mean
Rates
Fuel Efficiency
Formulas
Harmonic Mean formula
Theorems

Suitable Grade Level
High School
Related Recommendation
Understanding Auto Fuel Economy Using the 689599.7 Rule
Average Speed Calculation for Round Trip with Different Speeds (Truck Example)
Calculate the Mean of Grouped Data for a Frequency Distribution of Vehicle Speeds
Calculate Confidence Interval for Mean MPG  2023 Lexus UX 250 Hybrid
Calculate Mean, Median, Mode, and Standard Deviation for Highway Fuel Economy