3 years ago

A good walking pace would let you travel 4.5 miles in 90 minutes. What is your walking speed?

Mathematics

1 answer:

LiRa [457]3 years ago

8 0

I think it’s 20 mph?

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Inessa [10]

Answer:

d=1

Step-by-step explanation:

Factor d^2 - 2d - 8 into (d-4)(d+2)

Move -2/d+2 onto the other side, changing it into 2/d+2.

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