Question

Betty owns x CDs. Ginny owns 5 more CDs than Betty and 8 fewer than Allison. Which of the following represents the total number of CDs the three girls own?

a) 3x - 3
b) 3x + 3
c) 3x + 13
d) 3x + 18

Answer 1

C

Answer 2

It's D. x + (x+5) + (x+13) = 3x + 18.

Since better has 8 fewer CDs than Allison, and Allison has 5 more CDs than Betty, then Allison has 13 CDs.

Answer 3

I give up, @pylauzier Lol

Answer 4

Lol :(

Answer 5

Thank you!

Answer 6

By the way I meant to say 13 CDs more than Betty, not 13 CDs in total. That's where the x + 13 comes from.

Answer 7

wrong

Answer 8

Read the question, x represents the number of CDs betty own, you solved it as if x was Gina's CDs.

Answer 9

Yep, I missread it!

Answer 10

Thanks for pointing it out :)

Answer 11

Ahh ok :D

Answer 12

G = 5 + B
G = A - 8
-> A = 5 + B + 8 = B + 13

B + G + A
=> B + ( 5 +B) +( B + 13)
=> 3B +18