The amount of time needed to complete a certain road trip, t, varies inversely with the speed of avehicle, s. At a speed of 68 miles per hour, the trip will be complete in 15 hours. What would the
speed of the car have to be to complete the trip in 17 hours?

Answers

Answer 1

Answer:

The speed of car must be 60mile/hour, so that the trip will complete in 17 hours.

The rate of change of position of an object in any direction is called speed.

$speed = (distance)/(time)$

According to the given question

At a speed of 68 miles per hour, the trip will be complete in 15 hours.

⇒ Total distance covered in 15 hours = 68 × 15 = 1,020 miles

( because, distance = speed × time)

Therefore, the speed of car to complete the trip in 17 hours

= $(1020)/(17) =60miles/hr$

Hence, the speed of car must be 60mile/hour, so that the trip will complete in 17 hours.

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Answer 2

Answer:

Answer:

x = 60

Step-by-step explanation:

t = $(k)/(x)$

15 = k/68

k=1020

~~~~~~~~~~~

17 = 1020/x

x = 1020/17

x = 60