word Probelm

Question

Theresa Morgan, a chemist, has a 30% hydrochloric acid solution and a 65% hydrochloric acid solution. How many liters of each should she mix to get 492.188 liters of a hydrochloric acid solution with a 49% acid concentration?


______liters of 30% hydrochloric acid solution .

______liters of 65% hydrochloric acid solution .

Answer 1

a represents the amount of 65% acid

492.188 - a represents the amount of 30% acid

 

0.65a + 0.30(492.188 - a) = 0.49(492.188)

 

Can you solve for a and answer?