Answer:
12/19.
Step-by-step explanation:
There are 19 instructors altogether.
Probability (getting a computer science instructor) = 5/19.
Probability (getting a mathematics instructor) = 7/19.
As this a 'compounded or' probability these values are added so the answer is 5/19 + 7/19
= 12/19.
p=1
2/5 + p = 4/5 + 3/5p
Multiply each side by 5 to clear the fractions
5(2/5 + p) = 5(4/5 + 3/5p)
2 +5p = 4 + 3p
Subtract 3p from each side
2+5p-3p = 4+3p-3p
2+2p = 4
Subtract 2 from each side
2+2p -2 = 4-2
2p =2
Divide by 2
2p/2 = 2/2
look you need to multiply
multiply
The correct answer is a.
