Question

In June, Katherine bought 21 cans of food and 3 bags of litter for a total of $42. In July she spent $60 on 32 cans of food and 4 bags of litter. What is the cost of one bag of litter?

Answer 1

In June, Katherine bought 21 cans of food and 3 bags of litter for a total of $42. In July she spent $60 on 32 cans of food and 4 bags of litter. What is the cost of one bag of litter?

Answer 2

let, the cost of one bag of litter is $x and one can of food $y

then, 21y + 3x = 42.........(1)
and 32y + 4x = 60...........(2)

solving (1) and (2)

x= 7 and y = 1
so, the cost of one bag of litter is $7