Janet Has Three Times As Many Dimes As Nickels And Twice As Many Quarters As Nickels. If She Has $3.40 In All, How Many Nickels, Dimes, And Quarters Does She Have? If N Represents The Number Of Nickels Janet Has, What Is The Equation?

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Anonymous Profile
Anonymous answered
Janet has three times as many dimes as nickels and twice as many quarters as nickels. If she has $3.40 in all, how many nickels, dimes, and quarters does she have?
If n represents the number of nickels Janet has, which of the following equations could be used to solve the problem?
Oddman Profile
Oddman answered
0.05N + 0.10(3N) + 0.25(2N) = 3.40    (the values of each of the kinds of coins add to $3.40) 
Solution   N(.05 + .10*3 + .25*2) = 3.40   N(.05 + .30 + .50) = 3.40   N(.85) = 3.40   N = 3.40/.85   N = 4 Janet has 4 nickels, 12 dimes, and 8 quarters.

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