Answer:
a - a or (a +(-a))
Step-by-step explanation:
A negative plus a positive is always zero if they have the same variable.
Answer:
-4 and -2
Step-by-step explanation:
(X+4)(x+2)
4×2=8
4+2=6
Each book costs $15. 90 divided by 6 is 15 which is also 90 over 6.
<h2>
QUESTION</h2>
What is 33% of 400?
<h2>
ANSWER AND EXPLANATION</h2>
To find the percent of a number, you have to change the percent into a decimal or a fraction and multiply by the number.
<h3>
DECIMAL</h3>
To change a percent into a decimal, remove the percent sign and move the decimal point 2 places to the left.
Now that you have your decimal, multiply by 400:
ANSWER = 132
<h3>
FRACTION</h3>
To change a percent into a fraction, make the percent number as the numerator(top number) and 100 as the denominator(bottom number) since fractions are out of 100.
Now that you have your fraction, multiply by 400:
ANSWER = 132
<em>If you have any questions, feel free to ask in the comments! :)</em>