Kenji earned the test scores below in English class. 79, 91, 93, 85, 86, and 88 What are the mean and median of his test scores?

The mean: 87  The median: 87

Step-by-step explanation:

The mean is the average of all the number so you add them all up which comes out to 522 then you divide that number by how many scores there were (6) which comes out to 87 :)

The median is the number in the middle of all the test scores from lowest to greatest

79  85  86 / 88  91  93  

since the number of scores is even there is not one in the middle so just find the mean between the middle two numbers (86 and 88) the answer is 87 ;)

14

step-by-step explanation:

step by step resolutions

1) n+n+1+n+2=51

3n+3=51

3n=48

n=16

the three numbers are 16, 17 and 18.

2) x+15=4x

3x=15

x=5

radha is now 5 years old

3) the two digits are x and y.

y=3x

(10x+y)+(10y+x)=88

y=3x

11x+11y=88

y=3x

x+y=8

x+3x=8

x=2

the original number can be either 28 or 82.

4) n+(n+2)+(n+4)=48

3n+6=48

3n=42

n=14

the numbers are 14, 16 and 18.

5) y=x+3

10y+x+10x+y=143

y=x+3

11x+11y=143

y=x+3

x+y=13

x+x+3=13

2x=10

x=5

the original number can be 57 or 75.

hope this !