Problema Solution
sherry has 35 coins consisting of dimes and nickels. if the value of her coins is $3.30, then how many dimes does she have
Answer provided by our tutors
d = number of dimes
n = number of nickels
d + n = 35 coins
n = 35 - d
(0.10)(d) + (0.05)(n) = 3.30
.1d + (0.05)(35 - d) = 3.30
.1d - .05d + 1.75 = 3.3
.05d = 1.55
d = 31
n = 35 - d
n = 4
31 dimes and 4 nickels