Joey is asked to find the mean of this set of data: 4, 6, 7, 7, 7, 8, 12, 13, 15, 15, 17. What is the mode?

7

Step-by-step explanation:

The mode refers to the value which occurs most often. Since 7 occurs most often in this set of data, that's your mode.

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