Question

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Tom has a collection of 30 CDs and Nita has a collection of 18 CDs. Tom is adding 1 CD a month to his collection while Nita is adding 5 CDs a month to her collection. Find the number of months after which they will have the same number of CDs.
A. 1 month
B. 33 months
C. 2 months
D. 3 months

Answer 1

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Answer 2

T = number of CD's that Tom has.
N = number of CD's that Nita has.

T = 30 + x
N = 18+ 5x

When Tom and Nita have the same number of CDs, T = N = y
30 + x = 18 + 5x = y
12 = 4x
x = 3
y = 30 + 3 = 33

Tom and Nita will each have the same number of CDs, 33, in 3 months.

Answer 3

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