A gym charges a $30 sign-up fee plus $20 per month. You have a $130 gift card for the gym. When doe | MathCelebrity Forum

A gym charges a $30 sign-up fee plus $20 per month. You have a $130 gift card for the gym. When doe

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A gym charges a $30 sign-up fee plus $20 per month. You have a $130 gift card for the gym. When does the total spent on your gym membership exceed the amount of your gift card?

Subtract the sign up fee of $30 from your gift card amount:
$130 - $30 = $100

Since each month costs $20, we have $100/$20 = 5 months.

So if you go for more than 5 months, you'll exceed your gift card.
 
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