Traveling with a speed of 70 kilometers per hour, a car covered a distance s in t hours. Using a formula, express the dependence of s on t; using the formula, find the distance the car traveled between 3 hours 30 minutes and 5 hours.

Question

Mathematics

Brett

30 October, 14:30

Traveling with a speed of 70 kilometers per hour, a car covered a distance s in t hours. Using a formula, express the dependence of s on t; using the formula, find the distance the car traveled between 3 hours 30 minutes and 5 hours.

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Answers (1)

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Donna Chambers · Answer 1

If the car is traveling at the constant speed of 70 kilometers per hour, then from 3 hours and 30 minutes to 5 hours, the car has been traveling for (5 - 3.5) = 1.5 hours. We can then multiply this total time by the speed of 70 kilometers per hour, which gives 1.5 hours * 70 kilometers/hour = 105 kilometers.

So the car travels 105 km.