Ollow the steps below to find the mean for the set of data. Use the work shown to help you.

Data set: 6, 5, 8, 5, 9, 6, 7, 5, 12

First add the values.

6 + 5 + 8 + 5 + 9 + 6 + 7 + 5 + 12 = 63

Then divide by the number of values.

There are 9 values.

What is the mean of the data set?

5

6

7

8

7

Step-by-step explanation:

63/9 = 7

7

Step-by-step explanation:

To find the mean, add up all the values, then divide by the number of values.

1. Add the values

6 + 5 + 8 + 5 + 9 + 6 + 7 + 5 + 12 = 63

2.Divide by the number of values

9 values

63/9

7

The mean of the data set is 7

x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x

step-by-step explanation:

last month maria hiked the 5-mile mountain trail a number of times and she hiked the 10-mile canal trail several times. let x represent the number of times she hiked the 5-mile trail, and let y represent the number of times she hiked the 10-mile trail. if she hiked a total of 90 miles, which equation can be used to find the number of times maria hiked each trail? x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x