How many dimes 6 quarters?

: Let q represent value of a quarter. : Let d represent value of a dime. : Let x represent number of dimes. : q = 0.25 : d = 0.10 : 6q = xd : 6(0.25) = x(0.10) : 1.50 = x(0.10) : 15 = x :Therefore - 15 dimes are needed for 6 quarters. : ( I'm not sure what you meant in your question because of how you Worded it out... )