Use 4 -point bins (96 to 99 , 92 to 95 , etc.) to make a frequency table for the set of exam scores shown below. Include columns for relative frequency and cumulative frequency. 83 89 78 89 97 85 97 80 91 84 98 85 84 94 90 79 81 82 80 81

5/12, or 5: 12

step-by-step explanation:

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