Question

At a graduation​ dinner, an equal number of guests was seated at each of 4 large​ tables, and 5 ​late-arriving guests were seated at a smaller table. There were 45 guests in all. If n represents the number of people seated at each of the large​ tables, what equation could you use to find the value of​ n?

Answer 1

45 - 5 = 4n

Explanation:

Because the 5 late guests are late and are seated at the small table, we subtract them from the equation from everyone at the large tables, 45 - 5 to get 40 left. As an equal number of guests are seated at the large tables, we divide 40 by 4, to get n = 10 people at every table.