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# Algebra

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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?

Jun 18, 2024

### Best Answer

#1
+1250
+1

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! :)

Jun 18, 2024
edited by NotThatSmart  Jun 18, 2024
edited by NotThatSmart  Jun 18, 2024

### 1+0 Answers

#1
+1250
+1
Best Answer

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! :)

NotThatSmart Jun 18, 2024
edited by NotThatSmart  Jun 18, 2024
edited by NotThatSmart  Jun 18, 2024