Elementary Algebra

Published by Cengage Learning
ISBN 10: 1285194055
ISBN 13: 978-1-28519-405-9

Chapter 3 - Equations and Problem Solving - 3.3 - More on Solving Equations and Problem Solving - Problem Set 3.3: 59

Answer

She paid 42.00 dollars for the vase.

Work Step by Step

Marci sold the vase for 15 dollars less than twice the amount she paid for it. Let X represent the price she paid for the vase. Since she paid X for the vase, twice the amount she paid for it means 2 $\times$ X = 2X 15 less than twice the amount she paid for it means 2X - 15. Since we know that Marci sold the antique vase for 69.00 dollars, we obtain: 2X - 15 = 69.00 Add 15 to both sides 2X = 84.00 Divide both sides by 2 X = 42.00
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