20 has been added to the total of scores, so the new mean for the 20 scores will be 20/20 = 1 higher than it was.
The new population mean is 15+1 = 16.
11 more liters because then the ratio would be 2:14 which is equal to 1:7
They each would pay 2.55
12.75 divided by 5 = 2.55
Answer:
It should be (2,9).
Step-by-step explanation:
If you rotate it counter clockwise, the x value and y value switch numbers and they will both become postive.