Question 28585
Let the cost of bag of chips be x
Let the cost of bag of peanuts be y


4x+y=1.75----> y=1.75-4x (subsitution) 


2x+4y=2
Subsitute)
2x+4(1.75-4x)=2
2x-16x=2-7
-14x=-5
x=0.36 (rounded)


y=1.75-4(0.36)
y=0.31


Hence, a cost of a bag of chips is $0.36 and a cost of a bag of peanuts is $0.31.
Paul.