# How much is 170 dimes?

17 dollars, because 170 dimes equals 1700 cents which equals 17
dollars

-Jamie

aka Hiitsmeeee

### There are twice as many nickels as dimes and five more dimes than quarters The total value is 6.40 How many quarters are there?

Twelve. Here is how: Using cents rather than decimal dollars: 5n + 10d + 25q = 640 Express the numbers of nickels and quarters in terms of the number of dimes: # of nickels = twice the # of dimes ==> n = 2d # of quarters = 5 less than the # of dimes ==> q = d-5 Substitute for n & q in original equation: 5(2d) + 10d + 25(d-5) = 640 45d…