Ken asks…A math question! 10 points for doing it correctly...?How many litres of solution A which contains 74% acid need to be combined with 5 litres of Solution B containing 90% acid in order to obtain a mixture containing 84% acid?
Please HELP !!!Nancy answers:Let x = litres of solution a. Then:
0.74x + 0.90 * 5 = 0.84 (x + 5)
0.74x + 4.5 = 0.84x + 4.2
0.1x = 0.3
x = 3Lizzie asks…mixture problems?i don't get how to work these problems out !
1. how many liters of water must be added to
