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I am having cofusion with a and b pls help thx

I am having cofusion with a and b pls help thx-example-1

1 Answer

3 votes

a.

Let x = # of hours

Let y = cost to rent skates

3 + 2x = y

b.

(Plug in 8 for x, because it is the # of hours)

3 + 2x = y

3 + 2(8) = y

(PEMDAS or order of operations)

3 + 16 = y

19 = y

It costs $19 to rent skates for 8 hours.

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