Answer as a=fasdt as yuou can!!!
Mary has $4.00 in nickels, dimes, and quarters. If she has twice as many dimes as quarters and forty-seven more nickels than dimes, how many coins of each type does she have?

Question

Answer as a=fasdt as yuou can!!!
Mary has $4.00 in nickels, dimes, and quarters. If she has twice as many dimes as quarters and forty-seven more nickels than dimes, how many coins of each type does she have?

anonymous · Answer

I'm sorry to be asking this, but I don't live in the u.s. so... how much of a dollar is a nickel and a dime? I suppose a quarter is 1/4 of a dollar.

anonymous · Answer

.05 nick, .10 dime

anonymous · Answer

Thank you. Let's see then: She has four total dollars. I'll call nickel 'n', dime 'd'  and quarter 'q'.

Twice as many dimes as quarters = > d = 2*q
47 more nickles than dimes = > n = d + 47

0.05 n + 0.10 d + 0.25 q = 4
0.05 (d + 47) + 0.10 d + 0.25 (d/2) = 4
0.05 d + 2.35 + 0.10 d + 0.125 d = 4
0.275 d  = 4 - 2.35
0.275 d = 1.65
275 d = 1650
55 d = 330
11 d = 66
d = 6