Question

You spend $16 on 3 notebooks and x binders. Notebooks cost $2 dollars each and binders cost $5 each. Write and equation you can use to find the number of binders you bought. Please and thanks! 45 points <3

Answer 1

2 binders

Step-by-step explanation:

3(2)+x=16

6+x=16

x=10

binders are $5 each

2 binders

Answer 2

One equation to set up is 5x+6 = 16

That equation solves to x = 2

You bought 2 binders

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Step-by-step explanation:

x = number of binders

5x = cost of all the binders only ($5 each)

2*3 = 6 = cost of all 3 notebooks only ($2 each)

5x+6 = total cost of the 3 notebooks and x binders

5x+6 = 16 is one possible equation to set up

Other equations are possible.

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Let's solve for x.

5x+6 = 16

5x = 16-6 ... subtracted 6 from both sides

5x = 10

x = 10/5 .... divided both sides by 5

x = 2

You bought 2 binders

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Check:

1 binder = $5

2 binders = 2*5 = $10

Add this onto the $6 spent on the notebooks to get 10+6 = 16 dollars total. The answer is confirmed.