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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?
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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mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.0By "rooves", do you mean "roofs", the plural of "roof"?

mathstudent55
 one year ago
Best ResponseYou've already chosen the best response.0Use 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.

KnightOfPentacles
 one year ago
Best ResponseYou've already chosen the best response.0dw:1445777990208:dw

KnightOfPentacles
 one year ago
Best ResponseYou've already chosen the best response.0dw:1445778076925:dw

KnightOfPentacles
 one year ago
Best ResponseYou've already chosen the best response.0dw:1445778178532:dw
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