blackrabbit490 blackrabbit490

19-04-2017
Mathematics

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A skateboarding park charges $7 per session to skate and $4 per session to rent safety equipment. Your friend rents safety equipment every time he skates. Last year, he spent $99 total for skating charges and equipment rentals. How much did he pay to rent safety equipment last year? Please explain!

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TamakiTheKid TamakiTheKid

19-04-2017

He spent $36 on safety equipment.
The total cost each time was $11, meaning he had to pay 9 times for each skate session. 4x9=36! ( 7x9= 63 so if you add 36 you'll get 99 just as a way of checking)

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