Supplementary angles add up to 180
40+x=180
x=140
It’s and equation stating the fact that the answer is 21
8x-9y=11
First you move the 8x because you have to leave the 9y alone
8x-9y=11
-8x -8x
-9y=11-8x
Now you have to move the -9, so the inverse of multiplying is dividing so you divide -9.
-9y/-9= 11/-9 -8x/-9
since you can't have negative as a denominator it would be:
y= -11/9+8x/9
<span>You have to change the signs</span>
A) Divide and compare in decimal form -
9/25 = 0.36
4/6=2/7 = 1/4 = 0.25
0.6... > 0.25
B) Fraction to decimal conversion:
4/16 = 2/8 = 1/4 = 0.25
Use long decision or a calculator - 1 divided by four
C) Again, 9/25 = nine divided by twenty-five = 0.36
% Science class)
0.36 = 36%
Move decimal place to right twice and place “%” at the end.
Answer:

Step-by-step explanation:

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