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yulyashka [42]
2 years ago
15

Kelly uses cruise control to drive at a constant speed. She travels first 192 miles in 3 hours. At the rate, how long will it ta

ke Kelly to drive a total of 448 miles?
Mathematics
2 answers:
ioda2 years ago
5 0

Answer:

Step-by-step explanation:

rate = d / t

rate = 192 / 3

rate = 64 miles / hour

Now you want to know how long it can take to get 448 miles

d = r * t

t = d / r

t = 448/64

t = 7 hours.

You could actually do it using proportions.

192/3 = 448/x                   Cross multiply

192*x = 448*3

192*x = 1344                    Divide by 192

x = 1344/192

x = 7

Do this the way you feel is the best way.

natali 33 [55]2 years ago
4 0
64 miles per hour.
448 divide by 64 = 7
Therefore the answer would be 7 hours.
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