Question

Becky is buying w wrenches $4.95 each and b bolts at $0.30 each. How do you write an expression for the amount Becky will pay?

Answer 1

Multiply the number of items `w` and `b` by the price of each item to get

`4.95w+.30b`

Explanation:

`w` and `b` represent the number of wrenches and bolts purchased, so you want to multiply each variable times the price of that particular item. For example, the cost of `w` wrenches is

`4.95*w`

and the cost of `b` bolts is `.30*b`

Put this together to get

`4.95w+.30b`