SOLUTION: The Jaspers collect nickels,dimes,and quarters in a jar. When they count the change in the jar there are twice as many nickels as there are quarters. If there is $15.30 in dimes an

Question 182098This question is from textbook pre-algebra
: The Jaspers collect nickels,dimes,and quarters in a jar. When they count the change in the jar there are twice as many nickels as there are quarters. If there is $15.30 in dimes and $74.80 in all how many quarters are there? This question is from textbook pre-algebra

Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
The Jaspers collect nickels,dimes,and quarters in a jar. When they count the change in the jar there are twice as many nickels as there are quarters. If there is $15.30 in dimes and $74.80 in all how many quarters are there?
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Equations:
Quantity Equation: n = 2q
Value Equation: 5n + 1530 + 25q = 7480 cents
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Substitute to love for "q":
5*2q + 1530 + 25q = 7480
35q = 5950
q = 170 (# of quarters)
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Since n = 2q, n = 340 (# of nickels)
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Since # of dimes = 1530/10 = 153 (# of dimes)
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Cheers,
Stan H.

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