The stop it,get some help
Answer: The mean is the same as the average. In order to find the mean, or average score of the two tests, you need to take the sum of the two tests, and then divide by the number of tests, which is two.
We don't know the score of the second exam. Let it = x
Then we have the following equation:
(88 + x)/2 = 93
88 + x = 2 * 93
88 + x = 186
x = 186 - 88 = 98
You need to score a 98 on the second test
What is the interquartile range of the following data set 2, 5, 9, 11, 18,30, 42, 55, 58, 73, 81
In-s [12.5K]
Answer:
4.2/5. 4.
Step-by-step explanation:
Answer:
Step-by-step explanation:
1] 6x + 10 = 28 {subtract 10 from both sides}
6x + 10 -10 = 28 - 10
6x = 18 {Divide both sides by 6}
6x/6 = 18/6
x = 3
2] -2m - 4 = 8 {Add 4 to both side}
-2m - 4 + 4 = 8 + 4
-2m = 12 {Divide both sides by -2}
-2m/-2 = 12/-2
m = -6
3] x + x + 2x = 48 {add the like terms}
4x = 48 {divide both sides by 4}
4x/4 = 48/4
x = 12
4] 3y +4 +3y - 6 = 34 {add the like terms}
6y - 2 = 34 {Add 2 to both side}
6y - 2 + 2 = 34 +2
6y = 36 {divide both sides by 6}
6y/6 = 36/6
y = 6
5]9(w - 6) = 36 {divide both sides by 9}
[9(w - 6)]/9 = 36/9
w - 6 = 4 {Add 6 to both sides}
w - 6 + 6 = 4 + 6
w = 10
