+1367 All members of our painting team paint at the same rate. If $15$ members can paint a specific wall in $45$ minutes, then how long would it take $20$ members to paint the same wall, in minutes?
+921 We can use poportions to solve this problem.
If 15 members can paint a wall in 45 minutes, then 5 members can paint a wall in \(45*3=135\) minutes.
We multiply by 3 because the less people there are, the more time it the less people there are.
Now, we multiply by 4 to get 20 members.
Thus, we must do \(135/4\)
We get that \(135/4=33.75\)
So it takes about 33 minutes and 45 seconds.
Thanks! :)
+921 We can use poportions to solve this problem.
If 15 members can paint a wall in 45 minutes, then 5 members can paint a wall in \(45*3=135\) minutes.
We multiply by 3 because the less people there are, the more time it the less people there are.
Now, we multiply by 4 to get 20 members.
Thus, we must do \(135/4\)
We get that \(135/4=33.75\)
So it takes about 33 minutes and 45 seconds.
Thanks! :)
