So to get the mean, you need to work out the sum of the values and divide it by the number of values there are.
This means you should do:
(Let x represent the fifth score)
(92 + 85 + 90 + 92 + x) / 5 = 90
(92 + 85 + 90 + 92 + x) = 450
359 + x = 450
x = 450 - 359
x = 91
So the answer is 91 and you are correct :)
Answer:
45 meters
Step-by-step explanation:
so if i divided 9 by 3 it's 3 meters per sec then i times 15 by 3 equals 45
Answer:
4x - 6 = 3x + 8.
Step-by-step explanation:
If the number is x then 4 times is 4x , then - 6 gives us 4x - 6.
Similar reasoning gives us 3x + 8.
1 ticket costs $27, 2 tickets cost $54, 3 cost $81, 4 cost $108, and 5 cost $135.
There is a $27 difference between each ticket above or below
