Answer:
R = 20
Step-by-step explanation:
mean age = sum of ages/no. of men
sum of ages of the men that left = 55 + 63 = 188
remaining sum = 50R - 118
remaining no. of men = R - 2
now mean age = 50 - 1 = 49 years
49 = 50R-118/R-2
49(R - 2) = 50R - 118
49R - 50R = -188 - 98
-R = -20
R = 20
Answer:
3.46
Step-by-step explanation:
just did it on
To answer this, determine the change in water level over 2 1/4 months: it's -11.5 inches. Next, divide this change by the time involved:
-11.5 inches
------------------- = -5 1/9 inches per month (answer)
2.25 months
There is no underlined digit that I see, but I think they're asking you to just round. In that case the answer would be 0.4
Answer:
Here you go! :) (Its at (0,2/3)