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## Joseph needs to drive 42 miles. They were going to drive at a certain average speed, but if they drive 10 mph faster, the trip will take 6 m

Question

Joseph needs to drive 42 miles. They were going to drive at a certain average speed, but if they drive 10 mph faster, the trip will take 6 minutes (1/10 of an hour) less time. How fast were they going to drive? Write out the equation(s)

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Mathematics
3 years
2021-09-05T07:04:14+00:00
2021-09-05T07:04:14+00:00 1 Answers
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## Answers ( )

Answer:The speed is 60 mph.

Step-by-step explanation:distance = 42 miles

Let he drove with speed v and time is t.

distance = speed x time

42 = v t ….. (1)

42 = (v + 10)(t – 1/10) ….. (2)

So, the speed cannot be negative so the speed is 60 mph.