Answer: 5
B/c 5+1= 6 and 5 times 6 is 30
Before you start working on this problem, make sure you know
how to use a couple of the tools in your toolbox:
Tool #1: 37-1/2 percent means 0.375
Tool #2: In math problems, "of" almost always means "times".
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Your question says
"37-1/2 percent of blank is 36".
Translate it with your tools:
0.375 times blank = 36 .
Divide each side by 0.375: Blank = 36 / 0.375 .
Now grab your pencil or your calculator, and find the value of that
fraction (do the division). Blank is equal to the value of the fraction.
To check your answer (find out whether it's correct):
Do exactly what the question says.
Multiply (0.375) times (your answer). If you get 36,
then your answer is correct. If not, it's not.
You got the b part wrong. It would be 4B+4C/2=4D
We can't find explicit values for and , since there is only one equation, but two variables.
The best we can do is solve for one variable with respect to the other:
Solve for :
subtract from both sides:
divide both sides by :
Solve for :
subtract from both sides:
divide both sides by :