SOLUTION: Bob has three and a half dollars in nickels and dimes .
Altogether, bob has fifty coins.
How many nickels does bob have?
How many dimes does bob have?
Explain how you figuered
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-> SOLUTION: Bob has three and a half dollars in nickels and dimes .
Altogether, bob has fifty coins.
How many nickels does bob have?
How many dimes does bob have?
Explain how you figuered
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Question 1068428: Bob has three and a half dollars in nickels and dimes .
Altogether, bob has fifty coins.
How many nickels does bob have?
How many dimes does bob have?
Explain how you figuered it out. Found 2 solutions by josgarithmetic, ikleyn:Answer by josgarithmetic(39615) (Show Source):
You can put this solution on YOUR website! .
Bob has three and a half dollars in nickels and dimes .
Altogether, bob has fifty coins.
How many nickels does bob have?
How many dimes does bob have?
Explain how you figuered it out.
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Let N be the number of nickels.
Then the number of dimes is (50-N).
N nickels contribute 5N cents to the total.
(50-N) dimes contribute 10*(50-N) cents to the total.
Your "value" equation is
5N + 10*(50-N) = 350 cents (=$3.50)
Simplify and solve for N:
5N + 500 - 10N = 350,
-5N = 350-500 ---> -5N = -150 ---> N = = 30.
Answer. 30 nickels and 50 - 30 = 20 dimes.
Check. 30*5 + 20*10 = 350 cents. Correct !!
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