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anonymous

  • one year ago

A goes through 2 3/5 boxes of nails in 3 1/2 rooves. How much would he use to finish 8 rooves?

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  1. mathstudent55
    • one year ago
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    By "rooves", do you mean "roofs", the plural of "roof"?

  2. mathstudent55
    • one year ago
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    Use a proportion. Let x = the unknown number of boxes needed for 8 roofs. \(\large 2\dfrac{3}{5}\) boxes are to \(\large 3 \dfrac{1}{2}\) roofs as x boxes are to 8 roofs. \(\Large \dfrac{2\frac{3}{5}}{3 \frac{1}{2}} = \dfrac{x}{8}\) Convert the mixed numerals into fractions. Then cross multiply and solve for x.

  3. KnightOfPentacles
    • one year ago
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    |dw:1445777990208:dw|

  4. KnightOfPentacles
    • one year ago
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    |dw:1445778076925:dw|

  5. KnightOfPentacles
    • one year ago
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    |dw:1445778178532:dw|

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