Question

A supermarket has bags of red grapes for 22.96 for 7 bags

They also had bags of green grapes priced 9.60 for 3 bags

Which type was most expensive?

Answer 1

The bag of red grapes costs more.

Explanation:

We can do proportions.

A supermarket has bags of red grapes for 22.96 for 7 bags:

`(22.96 \: dollars)/(7 \: bags) = (x)/(1 \: bag) \\ (7x)/(7 ) = (22.96)/(7) \\ x = 3.28`

For one bag of red grapes, its costs $3.28.

They also had bags of green grapes priced 9.60 for 3 bags:

`(9.60 \: dollars)/(3 \: bags) = (x)/(1) \\ (3x)/(3) = (9.60)/(3) \\ x = 3.2 \: \: \: - > 3.20`

One bag of green grapes costs $3.20.

The bag of red grapes costs more.