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?

CPhilFanboy Mar 31, 2020

#12**+3 **

20t x 36m / 4800 ft^{2 }= .15 t-m /ft^{2}

.15~~ t-~~m ~~/ft~~^{2 }x 4200~~ ft~~^{2 }/9~~ t ~~ = 70 minutes

ElectricPavlov Mar 31, 2020

#1**+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.

AltShaka Mar 31, 2020

#12**+3 **

Best Answer

20t x 36m / 4800 ft^{2 }= .15 t-m /ft^{2}

.15~~ t-~~m ~~/ft~~^{2 }x 4200~~ ft~~^{2 }/9~~ t ~~ = 70 minutes

ElectricPavlov Mar 31, 2020