Question

Coby bought packs of plastic bags that contain 90 bags each. She gave away two packs. If "x" denotes the number of packs of plastic bags, write an expression to show the number of bags left with Coby.

Answer 1

Answer: Either   90(x-2)   or     90x-180  

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Work Shown:

x = number of packs Coby starts with

x-2 = number of packs Coby has left after giving away two of them

90(x-2) = number of plastic bags Coby has left (90 per pack)

90x-180 = distribute the 90 through