9514 1404 393
Answer:
300
Step-by-step explanation:
Since nobody failed, the number who passed one or the other was 100%.
P(O + W) = P(O) +P(W) -P(O&W)
100% = 80% +70% -P(O&W)
P(O&W) = 50% = 150 students
If 150 students are 50% of the examinees, then 100% will be 300 students.
Answer:
I think..... f(x) = x-5x+6
f(2)= 2-5(2)+6
f(2)= 2-10+6
f(2)= - 2
f(x) = x-5x+6
f(3)= 3-5(3)+6
f(3)=2-15+6
f(3)= -7
Answer:
6
Step-by-step explanation:
Answer:
d = 3
Step-by-step explanation:
3.5d + 6.25 = 1 + 5.25d
5.25d - 3.5d = 6.25 - 1
1.75d = 5.25
d = 5.25 ÷ 1.75 = 3
Answer:
2
Step-by-step explanation:
32-8x=7x+2
32=15x+2
30=15x
x=2
