swagmasterra swagmasterra

20-12-2016
Mathematics

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each nails is 3/8 of an inch long and costs $0.06. exactly enough nails are laid end to end to have a total length of 42 inches. what is the total cost of these nails?

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texaschic101 texaschic101

20-12-2016

42 / (3/8) =
42 * 8/3 =
336/3 = 112...so their is 112 nails that are 3/8 inch long

so if each 3/8 inch nail cost 0.06, then 112 would cost (112 * 0.06) = $ 6.72

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