A jet plane traveling at 550 mph over takes a propeller plane traveling at 150 mph that had a 3 hour

Discussion in 'Calculator Requests' started by math_celebrity, Jan 31, 2017.

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  1. math_celebrity

    math_celebrity Administrator Staff Member

    A jet plane traveling at 550 mph over takes a propeller plane traveling at 150 mph that had a 3 hours head start. How far from the starting point are the planes?

    Use the formula D = rt where
    • D = distance
    • r = rate
    • t = time
    The plan traveling 150 mph for 3 hours:
    Time 1 = 150
    Time 2 = 300
    Time 3 = 450

    Now at Time 3, the other plane starts
    Time 4 = 600
    Time 5 = 750
    Time 6 =

    450 + 150t = 550t

    Subtract 150t
    400t = 450

    Divide each side by 400
    t = 1.125

    Plug this into either distance equation, and we get:
    550(1.125) = 618.75 miles
     

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