Its simple. You collect like terms and put them on one side of the equation
Hello. Good?
Formula for calculating two overlapping sets:
A + B - both + not (A or B) = Total
20 (french) + 20 (german) - 10(both) + Not = 50
40 - 10 + not = 50
30 + not = 50
not = 50 - 30
not = 20
Answer: 20 students do not speak french or german.
Thanks, I hope I have helped.
8.5? Give that a try!:)
What I did was I took a piece of paper, and listen those numbers from least to greatest, then I scratched off one number per side, till I got to the middle. From there, I added 8 and 9, the divided by 2. There, I got 8.5
Step-by-step explanation:
v(-2)= 12-2x(-2)-5
=12+4-5
=16-5
=11
v(0)= 12-2x0-5
= 12-0-5
=12-5
=7
v(5)= 12-2x5-5
= 12-10-5
=12-5
=7
<em><u>Hope </u></em><em><u>it </u></em><em><u>helps </u></em>