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Caitlin has a $10 gift certificate to the music store. she has chosen a number of cd's from the $7 bargain bin. if the cost of the cd's is $32 after the gift certificate is credited, how many cd's did Caitlin but?

Respuesta :

She bought x number of $7 cd and used and $10 gift card so
7x-10=32
7x=42
x=6 cds

Answer:

Caitlin bought 6 cd's.

Step-by-step explanation:

Givens:

  • Caitlin has a $10 giftcard.
  • The cd's she wants cost $7 per unit.
  • All cd's she picked cost $32.

Basically, to answer this question, we have to find the total number of cd's that she bought in such way that after the discount, she pays only $32.

If we think about, 6 cd's cost 6(7)=42, that is, $42, now with the $10 discount, she would pay only $32, which is the final price shown in the problem.

Therefore, Caitlin bought 6 cd's.

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