Answer:
it is 512
Step-by-step explanation:
<span>To produce 1000L of mixture the factory will need 657 liters of grade A and 343 liters of grade B. To determine this you have to figure out the percentage of each grade in the mixture. The ratio is 2.3 liters to 1.2 liters. Therefor in this scenario the unit equaling 100% is 3.5 liters. To find the percentage of grade A you divide the amount used by the total amount of the unit 100%:
2.3 divided by 3.5 = .657 (multiply the answer by 100 to get 65.7%).
To find the percentage of grade B you divide the amount used by the total amount of the unit 100%:
1.2 divided by 3.5 = .343 (multiply the answer by 100 to get 34.3%)
To test your answer make sure both percentages add up to 100%:
65.75 plus 34.35 = 100%
To determine how much of grade A and grade B is needed for a set amount of liters you multiply the percentage by the liters needed.
For this situation you multiply 65.7% (when multiplying percentages you need to multiply in decimal form).
For grade A you multiply .657 (65.7%) by 1000 liters = 657 liters
For grade B you multiply .343 (34.3%) by 1000 liters = 343 liters
To test your answer you can use the same addition as you did to test the percentages:
657 liters plus 343 liters = 1000 liters</span>
Answer:
You simply do the inverse of the operation (the opposite) ex. The opposite of subtraction is addition and the opposite of multiplication is division. when you apply the inverse to each operation, you isolate the variable.
Step-by-step explanation:
When you solve an equation, you find the value of the variable that makes the equation true. In order to solve the equation, you isolate the variable. Isolating the variable means rewriting an equivalent equation in which the variable is on one side of the equation and everything else is on the other side of the equation.
ex. x-6=8
you add six to both sides (canceling the 6 on left and adding 6 to the 8)
you then get x=14
but if your equation looks like this...
x-6(3)=18 (the parenthesis is the multiplication)
then you would divide by 3 on both sides getting
x-6=6
you then subtract six from both sides getting
x= 0
Answer:
8.33%
Step-by-step explanation:
Given that the quiz has;
A multiple-choice question with 3 possible answers
A multiple-choice question with 4 possible answers
In the first question;
⇒The three choices,each has the probability of 1/3 to be picked
In the second question;
⇒The four choices, each has a probability of 1/4 to be picked
1/4
Finding the probability that both responses are correct will be;
1/3* 1/4 =1/12
As a percentage will be
1/12 * 100= 8.33%
