Answer:
im sorry I just need to us ur page to right on
(2,5) ...........................................................................................
Answer:
50 liters
Step-by-step explanation:
If x is the volume of 20% acid, then:
x (0.20) + 20 (0.45) = (x + 20) (0.30)
0.2x + 9 = 0.3x + 6
3 = 0.1x
x = 30
30 liters of 20% acid are needed, so there will be a total of 50 liters of 30% acid.
5x - 20 = 8x - 65
-20 = 3x - 65
3x = 45
x = 15
Answer:
4.98
Step-by-step explanation:
