Kelly joins Powerhouse Gym. The cost is $30 per month and a one-time $100 joining fee. Lisa joins MegaMuscle Gym for $35 per mon

Question

4 years ago

13

Kelly joins Powerhouse Gym. The cost is $30 per month and a one-time $100 joining fee. Lisa joins MegaMuscle Gym for $35 per mon

th and a $50 joining fee. In how many months will Lisa have paid more than Kelly?
A) 10 months
B) 11 months
C) 8 months
D) 2 months

Mathematics

2 answers:

aalyn [17] · Answer 1 · 2021-11-27T20:17:42+03:00

aalyn [17]4 years ago

6 0

<span>100 + 30x = 50 + 35x.
-50 -30x -50 -30x

50 = 5x

10 = x

At ten months they would have paid the same amount so at 11 months, Lisa would pay more than Kelly.</span>

trapecia [35] · Answer 2 · 2021-11-27T22:10:04+03:00

trapecia [35]4 years ago

4 0

B- 11 months , Kelly would pay $430 and Lisa would pay $435

30 times 11 = 330 + 100= 430 -Kelly

35 times 11=385 + 50= 435