Algebra 1

Published by Prentice Hall
ISBN 10: 0133500403
ISBN 13: 978-0-13350-040-0

Chapter 11 - Rational Expressions and Functions - Cumulative Test Prep - Gridded Response - Page 710: 19



Work Step by Step

As per the given statement let us consider $a$ be the numbers of 15 dollar entrees or guests and $b$ be number of 18 dollar entrees or guests ordered. Thus, $a+b=37$ ...(1) and $15a+18b=606$ ...(2) From equation (1), we have $b=37-a$ Plug $b=37-a$ in $15a+18b=606$ $15a+18(37-a)=606$ $a=20$ Hence, the correct answer is $20$.
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.