
Bradley W. answered 04/28/20
Purdue MBA with 25 years experience in Finance, Stats and Spanish
Hi:
I am coming up with x = 10 and y = 50
where x = cashews and y = peanuts combined in the mix
The equations you are solving are:
4.25x + 2.75y =180 ( 60pounds @ $3/pound)
x + y = 60
Solving by elimination yields:
17x - 11y = 720
17x + 17y = 1020
6y = 300, therefore y = 50
which leads to x = 10 (60 pounds of mix - 50)
I hope that helps!