On her 10 mile trip to school, Jessica's car gets 50 mpg of gas. On her way home, her car gets 40 mi

Discussion in 'Calculator Requests' started by math_celebrity, Feb 9, 2023.

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  1. math_celebrity

    math_celebrity Administrator Staff Member

    On her 10 mile trip to school, Jessica's car gets 50 mpg of gas. On her way home, her car gets 40 miles per gallon. How many miles per gallon does Jessica's car get during the entire 20 mile trip?

    50 miles each gallon for a 10 mile drive = 1/5 gallon
    40 miles each gallon for a 10 mile drive = 1/4 gallon

    1/4 + 1/5 = 9/20

    20 miles driven /9/20 gallon = 400/9 = 44.44 miles per gallon
     

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