Mr. furley has 27 coins that are all dimes and quarters. the value of the coins is 4.35. how many dimes and how many quarters does mr. furley have

A) d + q = 27

B).10d +.25q = 4.35

Multiplying equation A by -.1

-.1d -.1q = - 2.7 then adding it to equation B

.1 d +.25q = 4.35 equals

.15q = 1.65

The number of quarters = 11

putting 11 quarters into equation A

d + 11 = 27

dimes = 16