Grace B.

asked • 06/06/14# A restaurant has 19 tables that can seat a total of 84 people. Some of the tables seat 4 people and the others seat 5 people. How many tables seat 5 people?

## 3 Answers By Expert Tutors

Mark W. answered • 06/20/14

Writing/Math Instructor for High School, College and Grad School Prep

Sometimes you can do some algebra with equations capturing the numbers with unknown variables.

Or sometimes it may be easier to just plug in the possible solutions and see which one works.

Start with 19 tables seating 4 each, that's only 4 times 19 or 76 people total. You need 84 people

84 minus 76 = 8 more people, so make 8 of the tables for 5 each, with 19-8=11 for just 4 people each.

check the answer 4x11= 44, 8x5=40 44+40=84

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