Darla drives at a constant speed of 45 miles per hour. If she drives for y miles and it takes her x hours, write the two-variable equation t

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Darla drives at a constant speed of 45 miles per hour. If she drives for y miles and it takes her x hours, write the two-variable equation to represent the number of miles Darla can drive in x hours.

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Thu Thảo 3 years 2021-08-09T14:21:30+00:00 1 Answers 31 views 0

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    2021-08-09T14:23:16+00:00
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    Answer:

    y = 45x miles

    Step-by-step explanation:

    Speed is the rate of change of distance with time. Mathematically,

    speed = distance/time

    Given that Darla travels at a constant speed of 45 miles per hour and for y miles, it takes her x hours then

    45 = y/x

    multiply both sides by x

    45x = y

    then the number of miles (y) Darla can drive in x hours

    y = 45x (in miles)

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