THE PROBABILITY THAT A STUDENT CHOSEN AT RANDOM ISNT IN DRAMA OR SPORTS is 7/22.
<h3>What is the probability?</h3>
Probability refers to a possibility that deals with the occurrence of random events.
The probability of all the events occurring need to be 1.
P(E) = Number of favorable outcomes / total number of outcomes
Let's denote students
D = in the drama club ,
S = in a sports team
So, P(D) = 85/330
P(S) = 200/330
P(D and S) = 60/300
P(D or S) = P(D) + P(S) - P(D and S)
P(D or S) = 85/330 + 200/330 - 60/330
P(D or S) = 15/22
P(neither D nor S) = 1- 15/22
P(neither D nor S) = 7/22
Thus, THE PROBABILITY THAT A STUDENT CHOSEN AT RANDOM ISNT IN DRAMA OR SPORTS is 7/22.
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Answer:
21
Step-by-step explanation:
the pattern is plus 6
Answer:
41
Step-by-step explanation:
(2/5) x - 8 = 9 - ( 3/5 )
First you need to multiply everything with inversely proportional number of 2/5 to get x alone.
(2/5) x - 8 = 9 - ( 3/5 ) / × 5/2
x - (8 × 5/2) = 9 × 5/2 - (3/5 × 5/2)
x - 40/2 = 45/2 - 15/10
Now you switch 40/2 on the other side, but when you do this, you need to change it's sing (minus to plus). We do that so x can be alone on one side.
x = 45/2 - 15/10 + 40/2, contracted, it look like this:
x = 22,5 - 1,5 + 20
and x = 41
A. 20 students are in 5th grade
b. 231 ounces of nuts
Answer:
x=3 and y=
4 / 3 (Fraction)
Step-by-step explanation:
Substitute x for 6y-5.
2(6y−5)−3y=2
Add 6y and 3y, and multiply 5 by 2/Simplify the equation.
9y−10=2
Add 10 to both sides, and then divide each side by 9.
9y−10+10=2+10
9y / 9 = 12 / 9
y = 4/3.
Repeat the process but replace y with 4/3!