SOLUTION: What are the algebraic formulas for this (in a collection of nickels, dimes, and quarters, there are twice as many dimes as nickels and 3 fewer quarters than dimes. if the total va
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-> SOLUTION: What are the algebraic formulas for this (in a collection of nickels, dimes, and quarters, there are twice as many dimes as nickels and 3 fewer quarters than dimes. if the total va
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Question 297266: What are the algebraic formulas for this (in a collection of nickels, dimes, and quarters, there are twice as many dimes as nickels and 3 fewer quarters than dimes. if the total value is $4.50 how many of each coin are there) 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)
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This is 3 equations and 3 unknowns, so it's solvable
By substitutions:
And, substituting again:
and, since
and
There are 14 dimes, 11 quarters, and 7 nickels
check:
OK
