Question

cashews cost $5 per pound and the peanuts cost 1.50 per pound. how many pounds of cashews should be mixed with peanuts to get a mixture of 32 pounds that will cost $4 per pound? Round to the nearest tenth.

Answer 1

x+y=32......................(1)
5x+1.5y=32*4.............(2)
5x+1.5y=128
y=32-x......................(1)
Substitude (1) in (2):
5x+1.5(32-x)=128
5x+48-1.5x=128
3.5x=80
x=22.9 pounds of peanuts
y=32-22.9=9.1 pounds of cashews

Answer 2

that was fast thank you