A grocer wants to make a 10-pound mixture of peanuts and cashews that he can sell for $4.75 per pound.
If peanuts cost $4.00 per pound and cashews cost $6.50 per pound, how many pounds of cashews should he use?
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Question

A grocer wants to make a 10-pound mixture of peanuts and cashews that he can sell for $4.75 per pound.
If peanuts cost $4.00 per pound and cashews cost $6.50 per pound, how many pounds of cashews should he use?
3
4
6
7

anonymous · Answer

is it 3

anonymous · Answer

say he uses x pounds of cashew.
so, there is 10-x pounds of peanut
the mixture costs 4(10-x)+6.5 x dollars
given, 10 kg mixture is sold for $4.75 per pound
so, total cost= $4.75*10=$47.50
so, 4(10-x)+6.5x=47.50
40-4x+6.5x=47.50
2.5 x=7.5
x=3
so, there is 3 pounds of cashew