Question

When courtney collected her change she realized she had five times as many dimes as quarters. her dimes and quarters totaled $5.25. how many quarters did she have?

Answer 1

Dimes (0.10): 5Q

Quarters (0.25): Q

 Dimes  + Quarters = Total

0.10(5Q) +  0.25(Q)  = 5.25

0.50Q    +  0.25Q    = 5.25

         0.75Q             = 5.25

         $\frac{0.75Q}{0.75}$            = $\frac{5.25}{0.75}$

                Q              = 7

Answer: 7 quarters