In these situations I always see if the bottom number can be multiplied by any number to get to 100. In this case 20 can be multiplied by 5 to get 100. Then all you do if that works is multiply the top number by the same number. So 12 * 5 = 60.
60/100= 60%
Answer:
Correlation
Step-by-step explanation:
9(x^2 -16y^2) that is the answer
Answer: x= 5
Step-by-step explanation:
Plug the second equation into the first equation’s y.
3x-2(-2x+7)=21
Then use distribution
3x+4x-14=21
Add 4x and 3x
7x-14=21
Then add 14 to both sides
7x=35
Divide by 7 to get x
35/7=5
x=5