Algebra

A car leaves a town at 80 kilometers per hour. A second car leaves one hour later. If the second car travels at 125 kilometers per hour, how long will it take the second car to catch up?

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  1. 80 t = 125 (t-1)

    125 = 45 t

    t = 2.7777 hours
    or 2 hours and 47 min for car 1
    and 1 hour and 47 minutes for car 2

    check
    80 * 2.777 = 222
    125 * 1.777 = 222 good

    so 1 hour and 47 minutes

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