+0  
 
+1
154
1
avatar+68 

It's a story problem so be courteous:

 

A zookeeper needs to mix a solution for baby penguins so it has the right amount of medicine. Solution A has 20% medicine. Solution B has 4% medicine. How many ounces of each solution are needed to obtain 10 ounces OF 8% medicine?

 

Good Luck :)

OwenT154  Jan 10, 2018

Best Answer 

 #1
avatar+12560 
+3

Amount of solution A  =   x

                               B =   10 - x

 

x (.2) + (10-x)(.04) = 10 (.08)

.2x + .4 -.04x = .8

.16x = .4

x = 2.5 oz = amount of A     (10-2.5) = B = 7.5 oz 

ElectricPavlov  Jan 10, 2018
 #1
avatar+12560 
+3
Best Answer

Amount of solution A  =   x

                               B =   10 - x

 

x (.2) + (10-x)(.04) = 10 (.08)

.2x + .4 -.04x = .8

.16x = .4

x = 2.5 oz = amount of A     (10-2.5) = B = 7.5 oz 

ElectricPavlov  Jan 10, 2018

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