Question 975764
d = number of dimes
d + 3 = number of nickels {Noelle has 3 more nickels than dimes}


0.1d + 0.05(d + 3) = 0.9 {value of coin times number of coins equals total value}
0.1d + 0.05d + 0.15 = 0.9 {used distributive property}
0.15d + 0.15 = 0.9 {combined like terms}
0.15d = 0.75 {subtracted 0.15 from each side}
d = 5 {divided each side by 0.15}
d + 3 = 8 {substituted 5, in for d, into d + 3}


5 dimes and 8 nickels
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