noahbeightol14 noahbeightol14
  • 04-02-2018
  • Mathematics
contestada

i need help, if 25 feet of wire cost 6 dollars how much does each inch cost

Respuesta :

jdoe0001 jdoe0001
  • 04-02-2018
there are 12 inches in 1 foot, so in 25 feet there are then 25(12) inches, or 300 inches.

now, we know that 300 inches then, is 6 bucks, how much is it for 1 only?

[tex]\bf \begin{array}{ccll} inches&\$\\ \text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\ 300&6\\ 1&x \end{array}\implies \cfrac{300}{1}=\cfrac{6}{x}\implies x=\cfrac{1\cdot 6}{300}\impliedby 2~pennies[/tex]
Answer Link
SmampyMan SmampyMan
  • 05-02-2018
12 in = 1 ft
25 ft cost $6
25 × 12 = 300
6 ÷ 300 = 0.02
Each inch costs 2 cents
Answer Link

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