2 years ago

A train is traveling at 60 mph. If the rate of speed increases 4 mph each hour,

Mathematics

1 answer:

Alenkasestr [34]2 years ago

6 0

Answer:

B) 5 hours

Step-by-step explanation:

First, find the amount of mph between 60 and 80:

80 - 60

= 20 mph

Since the speed increases 4 mph per hour, we can find how long it will take to get to 80 mph by dividing 20 by 4:

20/4

= 5

So, the correct answer is B, 5 hours

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