Answer:
noooooooooooo dont:(
Step-by-step explanation:
Answer:2x+97.7
Step-by-step explanation:
500 - 125 = 375
72.50 × 6 = 435
435 - 375 = 60.
Divide the part (60) by the whole (500) then multiply by 100 to get the percent.
60 / 500 = .12
.12 × 100 = 12%
The correct answer is B
Answer:
10
Step-by-step explanation:
We may apply a mass balance to determine the amount of water that must be added. The concentration in each of the solutions:
Saline solution: 18%
Pure water: 0%
Final solution: 10%
The volume of each solution is:
Saline solution: 16 oz
Pure water: w
Final solution: 16 + w oz
The moles of a substance are equal to the product of the concentration and volume. Therefore:
16*0.18 + w*0 = (16 + w)*0.1
w = 12.8 ounces
The volume of distilled water that must be added is 12.8 ounces.
