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kirza4 [7]
3 years ago
7

Samuel and Joyce both bought CDs. Samuel bought 3x CDs and Joyce bought 2x-1 CDs. If each CD had a regular price of $18 and a di

scount of $2, then which expression would show the amount of discount for all of their CDs? (prerequisite skill) A. 5x – 1 B. 2(4x) C . 2(5x – 1) D. 16(6x)
Mathematics
1 answer:
PtichkaEL [24]3 years ago
4 0

Answer:

Option C . 2(5x – 1)

Step-by-step explanation:

we know that

The total number of CDs is equal to the CDs bought by Samuel plus the CDs bought by Joyce.

so

3x+(2x-1)=5x-1 ----> expression A

To find out the amount of discount for all of their CDs, multiply the total number of CDs by $2

so

Multiply the expression A by $2

2(5x-1)

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