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Otrada [13]
3 years ago
5

Isaac wants to join a gym. He checked out the membership fees at two gyms.

Mathematics
2 answers:
lakkis [162]3 years ago
7 0
<span><span>Gym A charges a new member fee of $65 and $20 per month.
</span>When you see 'per' in a problem, it usually means the next word will be the variable in the equation. The next word is 'month' so use 'm' as the variable.
<span>This gives you: 20m
</span>Gym A doesn't charge you 65 per anything, so it is just on it's own.
<span>This gives you: +65
</span>Add these parts together to get:
<span>20m + 65
</span>
</span>Gym B charges a new member fee of $25 and $35 per month, but Isaac will get a discount of 20% on the monthly fee.
First thing's first, find 20% of 35, the monthly fee.
35 * .8 = 28
( I got .8 because .8 = 80% which would be what price is left )
The monthly fee is  28. Monthly fees are 'per month' so it will be 'm' again.
This gives you: 28m
The new member fee doesn't have 'per month' so it's on it's own.
This gives you: +25
Put them together and bam,
28m + 25
<span>
</span>Now that you have both equations, put them on either side of an equal signs, so you can find when they are equal.
28m + 25 = 20m + 65
Solve the equation.
<span> 28m + 25 = 20m + 65
</span>-20m           -20m
8m + 25 = 65
      -25     -25
8m = 40
/8      /8
m= 5
When the membership is 5 Months, they are equal


igor_vitrenko [27]3 years ago
4 0
Gym a:
$65 + $20 per month
$65 + 20m                m=month

gym b:
$25 + $35 per month with 20% discount
$25 + $28m

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