SOLUTION: janet has 3 times as many dimes as nickles, and twice as many quarters as nickles. if she has $3.40 in all, how many nickles,dimes and quarters does she have?

Question 314705: janet has 3 times as many dimes as nickles, and twice as many quarters as nickles. if she has $3.40 in all, how many nickles,dimes and quarters does she have?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = number of nickels
Let = number of dimes
Let = number of quarters
given:

(in cents)
By substitution:

and, since

and

She has 4 nickels, 12 dimes and 8 quarters
check:

OK

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