+0  
 
-1
786
3
avatar+218 

Andrea poured 6 litres of 10% cream into 3 litres of 15% cream. What is the percentage of cream in the final mixture?

 Apr 13, 2021
 #1
avatar+592 
+2

let x = percentage of cream in final mixture

6 * 0.1 + 3 * 0.15 = 9x

0.6 + 0.45 = 9x

1.05 = 9x

x = 0.116666666...

 

which means the percentage is about 11.67%

 

(tell me if I did something wrong since I haven't done these types of problems in a while)

 Apr 13, 2021
 #2
avatar+218 
0

The answer seems to be correct. 

 

Thanks for answering. 

 

Only feedback is that I followed through with your solution. And the exact solution would be 11 and 2/3 percent

MathyGoo13  Apr 13, 2021
 #3
avatar+36915 
+1

https://web2.0calc.com/questions/help-percentages#r1

 Apr 13, 2021

6 Online Users