Question

Michael and Michelle are at a restaurant. When leaving, they decide to leave an 18% tip. Michael states that in order to figure out their total, they need to multiply their bill by 0.18 and add that product on to the bill. Michelle says that another way to figure their total is to multiply their bill by 1.18. Will Michelle's method work? Explain why or why not.

Use properties of operations to generate equivalent expressions.
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Answer 1

Yes his method is correct

Answer 2

Michelle’s method WILL work because we have to add an extra 18% to the already total (100) michaels way would work if the tip was apart of the bill, but it is extra . Hence, Michelle’s method being correct