+0  
 
0
27
1
avatar

Working together, Rocco and Giulia can paint a room in 3 hours. It would have taken Rocco 7 hours to do the job alone. Which equation can be used to determine r, Giulia’s rate of work in parts per hour?

 Mar 7, 2020
 #1
avatar+21725 
+1

1/r  +  1/ g   =  1/3

 

1/7   + 1/g = 1/3       solve for g, Gulia's rate

 

1/g = 1/3 - 1/7

1/g = 4/21

g = 21/4 hr

 Mar 8, 2020

19 Online Users

avatar