Roman mixes 12 Liters of8% acid solution with a 20% acid solution, which results in a 16% acid solution.
A. complete the chart
Liters of solution|Percent Acid|Liters of Acid|
8% |12 | | |
20% | | | |
16% | | | |

B. Write an equation to determine the numbers of liters of 20% acid solution in the new mixture.
C.Solve the equation. How many liters of 20% acid solution did Roman add to

Question

Roman mixes 12 Liters of8% acid solution with a 20% acid solution, which results in a 16% acid solution. 
A. complete the chart
            Liters of solution|Percent Acid|Liters of Acid|
8%       |12                      |                   |                   |
20%     |                          |                   |                   |
16%     |                          |                   |                   |

B. Write an equation to determine the numbers of liters of 20% acid solution in the new mixture.
C.Solve the equation. How many liters of 20% acid solution did Roman add to

anonymous · Answer

the 8% acid solution? Please I need someone to explain everything I will fan and give medals! :) 
@ehuman

anonymous · Answer

Can you help? @Riddellikins

anonymous · Answer

ok great!

anonymous · Answer

Ok thank you so much it actually wasn't that long! :)

anonymous · Answer

@MajicMuzyk

anonymous · Answer

Let's say x is the amount of the 20% acid solution.
So we can use this equation: 

.08(12) + .2x = .16(x+12) 

then we simplify it: 

.96 + .2x = .16x + 1.92 
.04x = .96 
x=24 

Roman should use 24 litters of 20% acid solution

anonymous · Answer

That is remarkably simple  :P

anonymous · Answer

Yep!

anonymous · Answer

Thank you for the medal @Riddellikins

anonymous · Answer

No problem

anonymous · Answer

Sorry got  caught up in my studies thanks for making that so much clearer!!! @MajicMuzyk

anonymous · Answer

Your Welcome! Always happy to help! @Hiimlandry