15-10-2019
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A train travels at a rate of (5x+2)miles per hour.how many miles can it travel at that rate in (x-3)hours

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Abinatamang Abinatamang

15-10-2019

Explanation:

In 1 hour it travels (5x+2) miles.

In (x-3) hours it travels = (5x+2)(x-3)

= 5x(x-3)+2(x-3)

= 5x²-15x+2x-6

= 5x²-13x-6 miles.

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