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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 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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Mathematics
3 years
2021-08-09T14:21:30+00:00
2021-08-09T14:21:30+00:00 1 Answers
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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)