Question

A student bought a juice pouch forn$2.50 and 3 bags of chips. The total cost was $5.05.Write and solve an equation to determine the cost of a bag of chips,c

Answer 1

The cost of a bag of chips is
`c=\$0.85`

Explanation:

Let

c ----> the cost of a bag of chips

we know that

The cost of a juice pouch ($2.50) plus the cost of 3 bags of chips must be equal to $5.05

The cost of 3 bags of chips is equal to multiply 3 by its cost c

so

The linear equation that represent this situation is

`2.50+3c=5.05`

solve for c

Subtract 2.50 both sides

`3c=5.05-2.50`

`3c=2.55`

Divide by 3 both sides

`c=2.55/3`

`c=\$0.85`