-5
That depends on what the question is. A percent is just a number. You're asking "How do you solve a number?"
166.6/100
A percent is simply a proportion out of 100.
70 * % = 14 Solve for percent and get 0.2, or 20%.
34.5%
That depends on what the question is. A percent is just a number. You're asking "How do you solve a number?"
It tried to solve the use of alcohol. The 18th amendment banned the use of alcohol back then.
Alcohol and anti-depressants.
166.6/100
Alcohol and anti-depressants.
70 * % = 14 Solve for percent and get 0.2, or 20%.
A percent is simply a proportion out of 100.
you dont
Number*percent in a decimal 200 * .42 = 84
34.5%
U divide it by 100
The total volume of solution equals 18 L. So if we let X be the 50% solution & Y be the 20% solution we can solve a set of two equations with 2 unknowns: X + Y = 18 (total volume of solution is 18 L) 0.5X + 0.2Y = 18*(0.30) (the total amount of alcohol in the new 18L solution) Solving simultaneously, multiply the 1st equation by 0.5 then substract to solve for Y. X + Y = 18 {*0.5} => 0.5X + 0.5Y = 9 0.5X + 0.2Y = 5.4 => 0.5X + 0.2Y = 5.4 ------------------------------------------------------- 0.3Y = 3.6 Y = 12 Then substitute for Y back into the 1st equation & solve to get X=6. So you need 12 L of the 20% solution & 6 L of the 50% solutions to mix together to get 18 L of a 30% alcohol solution.