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nlexa [21]
3 years ago
14

Plz help it's due tomorrow

Mathematics
1 answer:
m_a_m_a [10]3 years ago
5 0

Answer:

-7x + 9 -6x + 8

collect the like terms

-7x -6x +9 +8

-13x +17

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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
ioda

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.

5 0
3 years ago
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3 years ago
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choice 1

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