Casey has 15 pounds of cashews that sell for $5.25 per pound. If eanuts sell for $2.5 per pound?

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Casey has 15 pounds of cashews that sell for $5.25 per pound. If eanuts sell for $2.5 per pound?

how many pounds of peanuts should he add to the cashews to obtain a mixture that will sell for $3.75 per pound?

2007-12-04 02:33:24 · 2 answers · asked by Success 1 in Science & Mathematics ➔ Mathematics

2 answers

x = pounds of peanuts

then x + 15 = total pounds of mix

5.25(15) + 2.5(x) = 3.75(x+15)
78.75 + 2.5x = 3.75x + 56.25
22.5 = 1.25x
18 = x

18 pounds of peanuts

2007-12-04 02:40:14 · answer #1 · answered by Linda K 5 · 2⤊ 0⤋

x = amount of peanuts to be added
15* 5.25 + 2.5x = (15+x)3.75
78.75 + 2.5x = 56.25 + 3.75x
78.75 -56.25 = 3.75x- 2.5x
22.5 = 1.25x
18 =x = pounds ofpeanuts to be added

2007-12-04 10:43:04 · answer #2 · answered by ironduke8159 7 · 0⤊ 0⤋