+0  
 
0
35
1
avatar

How many gallons of a 70% antifreeze solution must be mixed with 90 gallons of 30% antifreeze to get a mixture that is 60% antifreeze?

 Sep 1, 2020
 #1
avatar
+1

Let the number of gallons of 70% antifreeze needed = A

 

0.7A  +  0.3*90 =0.6[A + 90], solve for A

 

A = 270 gallons of 70% antifreeze

 Sep 1, 2020

22 Online Users

avatar