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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

Respuesta :

wolf1728
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