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3 years ago

34. Make Sense and Persevere Stay Fit gym

Mathematics

1 answer:

Evgesh-ka [11]3 years ago

7 0

Answer:

15 classes

Step-by-step explanation:

Let

x -----> the number of class

y ----> the total amount in charges

we know that

The total charge is equal to the number of class multiplied by the additional fee plus the membership fee (only members)

Members

$y=3x+75$ -----> equation A

Non Members

$y=8x$ -----> equation B

Equate equation A and equation B

$8x=3x+75$

Solve for x

$8x-3x=75$

$5x=75$

$x=15$

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You can substitute what y is into the second equation, so:
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