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All of the members of our spray-painting team paint at the same speed. If 20 team members can paint a 4800 square foot wall in 36 minutes, then how many minutes would it take for 9 team members to paint a 4200 square foot wall?

 Mar 31, 2020

Best Answer 

 #12
avatar+23566 
+3

20t x 36m / 4800 ft2     =    .15  t-m /ft2

 

.15 t-m /ft    x  4200 ft2  /9  = 70 minutes  

 Mar 31, 2020
edited by ElectricPavlov  Mar 31, 2020
 #1
avatar+416 
+1

This is aops hw so we cant help you with it! I can give you a hint though! Find out how long it takes 1 person to paint the wall.

 Mar 31, 2020
 #4
avatar+210 
0

How do you know which problems come from AoPS?

Impasta  Mar 31, 2020
 #5
avatar+416 
0

Cuz i had this question

AltShaka  Mar 31, 2020
 #6
avatar+210 
0

Is this from a class or from the book?

Impasta  Mar 31, 2020
 #7
avatar+416 
-1

Class

AltShaka  Mar 31, 2020
 #2
avatar+416 
0

Thats how i did it at least.

 Mar 31, 2020
 #3
avatar+416 
-1

Ill help you after you find that part out

 Mar 31, 2020
 #8
avatar+133 
+2

720 minutes because it's 36*20

CPhilFanboy  Mar 31, 2020
 #9
avatar+416 
-1

oh btw look here -----> answer I searched up the question rn cuz why not

 Mar 31, 2020
 #10
avatar+133 
+1

It's locked for me but I got it anyway. Thanks!

CPhilFanboy  Mar 31, 2020
 #11
avatar+416 
+1

Your welcome!

 Mar 31, 2020
 #12
avatar+23566 
+3
Best Answer

20t x 36m / 4800 ft2     =    .15  t-m /ft2

 

.15 t-m /ft    x  4200 ft2  /9  = 70 minutes  

ElectricPavlov Mar 31, 2020
edited by ElectricPavlov  Mar 31, 2020

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