Asked by Ansh

the average attendance of a class from Monday to Wednesday was 39 and that from Wednesday to saturday was 39.5 . what was the attendance on Wednesday, if the average attendance from Monday to Saturday was 40 ?
Answered by Reiny
M+T+W = 3(39) =117
W+TH+F+SA = 4(39.5) = 158
Add them
M + T + 2W + TH + F + SA = 275
Finally:
M+T+W+TH+F+SA = 240

Let's subtract those last two equations:
ahhh,
W = 35
Answered by Killer boy
Yes like this only
Answered by Anonymous
from where did the 240 come

from nowhere
Answered by Julius Nentok
How do you get 117?
I no understand

please explain to me
Answered by Damon
Reiny knows what she is talking about. As for the rest, give me a break.
Answered by Damon
Reiny again:
M+T+W = 3(39) =117

W+TH+F+SA = 4(39.5) = 158
Add them
M + T + 2W + TH + F + SA = 275
Finally:
M+T+W+TH+F+SA = 240

Let's subtract those last two equations:
ahhh,
W = 35

Reiny
answered by Reiny
calendar icon 7 years ago
Answered by Damon
M+T+W = 3(39) =117

W+TH+F+SA = 4(39.5) = 158
Add them
M + T + 2W + TH + F + SA = 275
Finally:
M+T+W+TH+F+SA = 240

mon + tues + wed + thurs + fri + sat = 6*40 = 240
which is where Reiny got 240
Answered by Damon
mon + tues + wed + thurs + fri + sat = 6*40 = 240
which is where Reiny got 240
There are no AI answers yet. The ability to request AI answers is coming soon!