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rebecca1233

  • 4 years ago

Your piggy bank has a total of 46 coins in it; some are dimes and some are quarters. If you have a total of $7.00, how many quarters and how many dimes do you have?

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  1. elizbaker45
    • 4 years ago
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    16 quarters and 30 dimes.

  2. Callisto
    • 4 years ago
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    dimes = $0.01? quarter = $0.25?

  3. rebecca1233
    • 4 years ago
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    what is the work on how to do it

  4. Callisto
    • 4 years ago
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    no i'm asking what is dime and what is quarter.. we don't have such currency here :(

  5. rebecca1233
    • 4 years ago
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    oh quarter is 25cents and a dime is 10

  6. Callisto
    • 4 years ago
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    anyway, let x be the no of dimes and y be the no of quarters x+y =46 => x = 46-y -(1) 0.1x+0.25y = 7 -(2) put (1) into (2) 0.1( 46-y)+0.25y = 7 4.6 -0.1y +0.25 = 7 0.15y = 2.4 y=16 therefore x=46-16 =30 therefore there are 30 dimes and 16 quarters

  7. rebecca1233
    • 4 years ago
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    Thank you so much.. yeah i thought it was 30 dimes but wasn't 100% sure

  8. Callisto
    • 4 years ago
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    welcome :)

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