When
Answer: 5, second choice
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
1 answer:
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
----> 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
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Answer:
38 feet
Step-by-step explanation:
P(x) = ℓ(x) + ℓ(x) + w(x) + w(x)
= x + x + (4x - 1) + (4x - 1)
= (x + x + 4x + 4x) + (-1 -1)
= 10x - 2
P(4) = 10(4) -2 = 38
The perimeter is 38 feet when the length is 4 feet long, so Cho will need to
cover 38 feet with garden stones.
