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28 December, 19:31

Madelyn drove a race car in a race. She averaged 55 mph and began the race 0.5 hours ahead of the other drivers. The variable d represents Madelyn's distance driven, in miles. The variable t represents the number of hours since the other drivers began to race. Which equation can be used to determine the distance Madelyn drove t hours into the race?

a. d=55 (t+0.5)

b. d=55 (t-0.5)

c. d=55t-0.5

d. d = 55t + 0.5

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  1. 28 December, 20:12
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    A. d = 55 (t + 0.5)

    Explanation:

    distance = rate x time or d = rt

    rate = 55 mph

    time = t + 0.5

    d = 55 (t + 0.5)
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