Suppose a jar contains 13 red marbles and 33 blue marbles. If you reach in the jar and pull out 2 marbles at random at the same time, find the probability that both are red.

7.5%

Step-by-step explanation:

Although they tell us that they are held at the same time, there is no difference between taking out first and then another, because the marbles DO NOT have a replacement.

So the final probability would be:

Total marbles 13 + 33 = 46

The probability of drawing a red would be: 13/46, on the first attempt.

In the second half it would be: 12/45, because we have one less marble and I specify a red one.

Therefore, the final probability is the multiplication of both events, like this:

P = (13/46) * (12/45) = 0.075

In other words, the probability of this happening is 7.5%.

to find the perimeter of the rectangle this is the expression:

x-9+x-9+3x-4+3x-4=138

if we simplify it:

8x-26=138

remember, 138 is what it all adds up to

the length is 11.5cm

the width is 57.5cm

the area is 661.25cm^2

the answers might not be correct use at own risk

answer: your gay

step-by-step explanation:

you dont know math