There are 200 students in the 7th grade class at brookside middle school. of these students, 12% play volleyball and 15% play baseball. four students play on both teams. what is the probability that a student plays either volleyball or baseball?
a.27%
b.25%
c.22%
d.30%

Option B

Step-by-step explanation:

Given that there are 200 students in 7th grade

Volley ball players = 12% = 24

Baseball players = 15% = 30

Both players = 4

We have to find out the probability that a student plays either volley ball or baseball

No of students who play either base ball or volley ball =

24+30-4= 50

Probability that student plays either volleyball or baseball

=

In percent this equals 25%

Option b

there are many solutions.

step-by-step explanation:

step 1: simplify both sides of the equation.

4x+6=4x^2+10x−4

step 2: subtract 4x^2+10x-4 from both sides.

4x+6−(4x^2+10x−4)=4x^2+10x−4−(4x^2+10x−4)

−4x^2−6x+10=0

step 3: factor left side of equation.

−2(2x+5)(x−1)=0

step 4: set factors equal to 0.

x=-5/2 or x=1