I'd say A. I'm not 100% sure though :/ Sorry
Can you show me the patterns?
Y=2x is the equation that is //
Answer:
80 ml of the first solution and 120 ml of the second solution
Step-by-step explanation:
Let the first solution weigh x ml, let the second solution weigh 200-x ml.
The amount of acid in the first solution is x/100*50=0.5x
The amount of acid in the second one is (200-x)/100*80= 160-0.8x
The quantity of acid in the desired mixture is 200/100*68= 136
0.5x+160-0.8x= 136
0.3x=24
x=80ml of the first solution are needed
200-80=120ml - of the second solution are needed