Ms. Lund paid $5.00 to buy x bananas at 43 cents each. Which expression can be used to find how much she received in change?

Question

What's the equation?

Answer 1

How much money she gave as payment - $5.00

 

How much does each banana cost?  $0.43

 

So if she bought 1 banana and paid with a $5.00 bill, she would get back $5.00 - $0.43, right?

 

Now put the variable where it belongs.  If x represents the number of bananas, where would you place it in the expression?

 

you would have to multiply the number of bananas by $0.43 to find her total cost.  So the expression would be

$5.00 - $0.43x.