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Sonic Adventures~
Lv 4
Sonic Adventures~ asked in Science & MathematicsMathematics · 9 years ago

Simple Algebra problem help?

I know it's easy for the majority, but I just don't understand how!

You have one dollar bills and five dollar bills totaling 45 dollars. You have 4 times as many one dollar bills as you do five dollar bills. How many of each type of bill do you have?

Thanks

4 Answers

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  • Trenton
    9 years ago
    Favorite Answer

    5 5s 20 1s

  • Matt
    9 years ago

    5-5 dollar bills and 20-1 dollar bills. So 5x5=25 5x4=20 =45

  • David
    Lv 7
    9 years ago

    let x = number of one dollar bills

    let y = number of 5 dollar bills

    x = 4y

    1x + 5y = 45

    4y + 5y = 45

    9y = 45

    y = 5

    x = 20

    you have 20 one dollar bills and 5 five dollar bills

  • Anonymous
    9 years ago

    x is ones and y is fives

    1x + 5y = 45

    4y + 5y = 45

    9y = 45

    y = 5

    x = 20

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