Answer:
350 mL
Step-by-step explanation:
Let q represent the quantity (in mL) needed of the 70% solution. Then the total amount of mixture will be q+50 milliliters. The total amount of alcohol in the mixture will be ...
0.70q +0.30(50) = 0.65(50 +q)
.05q = 17.5 . . . . . . subtract (0.65q +1.50)
q = 350 . . . . . . . . . divide by 0.05
You will need 350 mL of the 70% solution.
Answer:
x=90/7
Step-by-step explanation:
7x=90
x=90/7
Answer:
Option 3
Step-by-step explanation:
JG = JF
2x + 2 = 8
2x = 6
x = 3
Answer:
Answer is B. 43.3 m
Step-by-step explanation: