jake recorded a special album in honor of mothers day his mom was so excited she purchased 40% of the copies she has 80 copies of the cd how mandy CDs did the store have for sale

Respuesta :

The store had 200 CDs for sale.

Let

x-------> total number of CD's

we know that

1) Jake's mom purchased [tex]40\%[/tex] of the copies in the store.

2) Jake's mom has [tex]80[/tex] copies of the CD's

3)  [tex]80[/tex] copies of the CD's represent [tex]40\%[/tex] of the copies in the store

so

[tex]40\%=\frac{40}{100}=0.40[/tex]

[tex]x*0.40=80[/tex]

solve for x

Divide by [tex]0.40[/tex] both sides

[tex]x*0.40/0.40=80/0.40[/tex]

[tex]x=80/0.40[/tex]

[tex]x=200\ Cd's[/tex]

therefore

the answer is

[tex]200\ Cd's[/tex]