SOLUTION: 5 quarters Twice as many dimes as quarters 16 coins in all Q=___ D=____ N=____ How can I explain to my daughter how to do this logical reasoning problem. I have trouble

SOLUTION: 5 quarters Twice as many dimes as quarters 16 coins in all Q=_ D= N=__ How can I explain to my daughter how to do this logical reasoning problem. I have trouble

Question 235169: 5 quarters
Twice as many dimes as quarters
16 coins in all
Q=___ D=____ N=____
How can I explain to my daughter how to do this logical reasoning problem. I have trouble with word problems. Thank you for your help.
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Does stand for nickels? If so,

There are coins in all, so

Now I can do substitutions

And,since

Subtract from both sides

Therefore,

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