<h3>Answer: x = 12</h3>
==============================================================
Work Shown:
Multiply both sides by the LCD 12 to clear out the fractions. Afterward, solve for x
x/2 - x/3 = x/4 - 1
12(x/2 - x/3) = 12(x/4 - 1)
12(x/2) + 12(-x/3) = 12(x/4) + 12(-1) ... distribute
6x - 4x = 3x - 12
2x = 3x - 12
2x-3x = 3x - 12-3x ... subtract 3x from both sides
-x = -12
x = 12
For this case we must find the value of "x" that meets the following equation:
We subtract 
on both sides of the equation:
We simplify:
Finally, 
Answer:
Answer:
10 litres of 1% solution and 8 litres of 10% solution
Step-by-step explanation:
Let vol of 1% solution = x
So vol of 10% solution = 18 - x
5% of 18 litres = 0.9
Equation formed is
<h3>x * (1/100) + (18 - x)*(10/100) = 0.9</h3>
x + (18 - x)10 = 0.9 * 100
x + 180 - 10x = 90
-9x = 90 - 180
-9x = -90
x = 10 litres
<h3>10 litres of 1% solution and 8 litres of 10%</h3>
Answer: 80 dollars
Step-by-step explanation:
You can find a percentage with one of two ways.
For hundreds like this, oftentimes it's quicker and more simple to think of it as just 100. The proportion from 100 to 500 is just 5. 16% of 100 is 16. So, multiply 16 * 5. You would get 80.
The second method is you can use 0.16 * 500. It's the more conventional method, and you get 80, like the last method.
