Answer:
150 mL
Step-by-step explanation:
Let x represent the quantity of 75% solution needed. The total amount of alcohol in the 60% mixture will be ...
75%·x + 10%·45 = 60%·(x+45) . . . . . there will be x+45 mL of solution in the end
0.15x = 22.5 . . . . . . . . . . . . . . . . . . . . simplify, subtract .60x+4.5
22.5/0.15 = x = 150 . . . . . . . . . . . . . . mL of 75% solution needed
You will need 150 mL of the 75% solution.
It would be 0.008 because you line up the decimals and multiply
Step-by-step explanation:
4(3x-2) + 6x(2-1)
10x + 11x
21x
The answer is y-6 hope it helps
Answer:
25
Step-by-step explanation:
3^2=9
-2^4=16
9+16=25
