Question

A principal is planning for 120 parents

to attend the Eighth Grade Open House.
In the multipurpose room, round tables
seat 6 and square tables seat 8. Let x
equal the number of round tables needed.
Let y equal the number of square tables
needed. Write an equation that represents
this situation. Then use the equation to
determine the number of round tables
needed if no.square tables are used.

Answer 1

Equation: 6x + 8y = 120

You need 20 round tables

Explanation:

Equation: 6x + 8y = 120

if there are no square tables used, then we only need to worry about the round tables which are (x)

6x = 120

To find x, divide both sides by 6

x = 20

You would need 20 round tables to seat 120 parents