If 4 bags of chips cost $3 how much would 5 bags cost

Answer 1

Hi Lan, set up a proportion with x being the unknown cost. Here is the proportion:

4 / 3 = 5 / x

Cross multiply:

4x = 15

Divide both sides by 4:

x = 3.75

The cost of 5 bags of chips would be $3.75.

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