SOLUTION: It rained as much as on Wednesday as on all the other days of the week combined. If the average rainfall for the whole week was 3 cms; how much did it rain on Wednesday?

Algebra ->  Average -> SOLUTION: It rained as much as on Wednesday as on all the other days of the week combined. If the average rainfall for the whole week was 3 cms; how much did it rain on Wednesday?       Log On


   

Question 475973: It rained as much as on Wednesday as on all the other days of the week combined. If the average rainfall for the whole week was 3 cms; how much did it rain on Wednesday?

Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
How much rain fell in cm for the entire week?
+x+ cm on wednesday
+x+ cm on the remaining 6 days of the week
+x+%2B+x+=+2x+ cm during the entire week
-----------------------
An average is: (sum of measurements of samples) / (number of samples)
+3+=+2x+%2F+7+ cm/wk
+21+=+2x+
+x+=+10.5+
It rained 10.5 cm on Wednesday