Say you're trying to figure out what percentage 3 is of 15.
3/15 = x/100
You would cross multiply so..
3(100) = 15x
Then simplify.
300 = 15x
300/15 = 15x/15
20 = x
Therefore, 3 is 20% of 15.
Answer:
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Step-by-step explanation:
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So you need to isolate the N right?
So what you want to do is add -3/5 to both sides to remove it from the left side. making it
2n=5+3/5 now all you need to do it isolate the N by divinding it by 2 on each side
n=5+3/5
/2
the 5+3/5 is divided by 2.
so N equales 5+3/5----/2
The correct answer is option C.
Step by step solution is listed below.
Five less than twice what negative number squared is 157 <- put into an expression
-5 + 2(-x^2) = 157
Now simplify:
-5 + -2x^2 = 157
-2x^2 = 162
-2x^2 - 162 = 0
2x^2 + 162 = 0
x^2 + 81 = 0