Finding the Mean Answers

George sold 18, 22, 26, 12, 25, 20, and 19 cars per month over the past seven months. He followed the steps below to determine the number of cars he needs to sell in the next month to have a mean number of sales per month of 24. Step 1: Find the total cars needed to have a mean of 24: .Step 2: Find the total cars sold: .Step 3: Subtract the total cars sold from the total cars needed: .Step 4: State the answer: George needs to sell 26 cars next month. Where did George make his first mistake?

The Wing Station wants the average price of the lunch meal deals to be $8. Lunch Meal Deal PricesItemPrice ($)Deluxe hamburger$9Reuben sandwich$7Chicken wings Chicken stir fry$9Cobb salad$6Make your own sandwich$10What does the price of the chicken wings need to be for this to happen?

Maria’s phone bills were $95, $67, $43, and $115. What was the mean, or average, of her phone bills?

What is the mean of the data set? 85, 97, 84, 88, 95, 100, 81

The table below shows the deliveries for Floral World for the week. What is the mean, or average, number of deliveries per day?Floral World DeliveriesMonday13Tuesday15Wednesday17Thursday19Friday16

What is the mean of the data set? 17, 24, 26, 13

Four baskets contain scented soaps. The baskets contain 9, 9, 11, and 15 soaps. If the soaps are divided evenly among the baskets, how many soaps will go in each basket?

Asa received scores of 72, 97, and 82 on her last three math tests. She needs a mean test score of 82 to qualify for the math team. What is the first step in determining how many points she needs on her next test to qualify for the team?

Melinda has 1 seashell, and Jun has 9 seashells. If Melinda and Jun put their seashells together and then divide them up equally, how many will each one of them have?

What is the mean of the data set below?12, 15, 10, 11

Monica bowled three games. Her scores were 175, 142, and 133. What was her mean, or average, score?

The table shows the attendance at the art show for the past week. Art Show AttendanceDayAttendanceSunday54Monday29Tuesday22Wednesday28Thursday12Friday15Saturday?What does the attendance need to be on Saturday to have an average attendance for the week of 30 people per day?

Maria scored 72, 97, and 82 on her first three math tests. She wants to have a mean score of 82 for the quarter. How many points does she need on her last test to earn an 82 for the quarter?

Ella’s test grades in her history class are 89, 94, 82, 84, and 98. What score must Ella make on her next test to have a mean test score of 90?