Question 142116
let x=soybean, so 320-x=corn


x(16%)+(320-x)(8%)=320(15%) __ multiplying by 100 to clear percentages __ 16x+2560-8x=4800


subtracting 2560 __ 8x=2240 __ dividing by 8 __ x=280


substituting __ 320-(280)=40