mariaminchala mariaminchala
  • 11-08-2019
  • Mathematics
contestada

Suppose that 16 inches of wire costs 64 cents. At the same rate, how many inches of wire can be bought for 36 cents?

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ricejice0317
ricejice0317 ricejice0317
  • 11-08-2019

Answer:

8 inches of wire can be bought for 36 cents.

8 inches of wire can be bought for 36 cents.Step-by-step explanation:

if 16 inches of wire cost 36 cents, just divide 64 by 2 (which gives you 32) so now that you divided 64 by 2, divide 16 by 2 (which is 8)

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jdoe0001 jdoe0001
  • 11-08-2019

[tex]\bf \begin{array}{ccll} \stackrel{wire}{in}&cents\\ \cline{1-2} 16&64\\ x&36 \end{array}\implies \cfrac{16}{x}=\cfrac{64}{36}\implies \cfrac{16}{x}=\cfrac{16}{9}\implies 144=16x \\\\\\ \cfrac{144}{16}=x\implies 9=x[/tex]

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