Question

Laura, Scott, and Joe served a total of 104

orders Monday at the school cafeteria. Joe served 3
times as many orders as Scott. Laura served 9
more orders than Scott. How many orders did they each serve?

Answer 1

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Answer:

• Joe: 57
• Scott: 19
• Laura: 28

Explanation:

Let s represent the number of orders Scott served. Then we have Joe served 3s, and Laura served (s+9). The total of orders served is ...

3s +s +(s +9) = 104

5s = 95 . . . . . . . . . . . subtract 9 and collect terms

s = 19 . . . . . . . . . divide by 5

3s = 3×19 = 57

s+9 = 19+9 = 28

Joe served 57 orders, Scott served 19, and Laura served 28 orders.