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Daniel [21]
2 years ago
11

A recreation center charges nonmembers $3 to use the pool and $5 to use the basketball courts. A person pays $42 to use the recr

eation facilities 12 times. How many times did the person use the pool?
Mathematics
1 answer:
Andrei [34K]2 years ago
5 0
Let x = times in the pool
Let y = times in the basketball courts

42=3x+5y
x+y=12
Therefore y = 12-x
Subsitute for y
42 = 3x + 5(12-x)
42 = 3x + 60 -5x
Subtract 60
-18 = -2x
9 = x

The person used the pool 9 times.

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<h3>The prices of the cars before VAT was added</h3>

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So, the price before VAT is calculated as:

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So, we have:

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Hence, the prices of the cars before VAT was added are R241901, R281951 and R88377

<h3>The commission he earned on the cars.​</h3>

This is calculated as:

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