~ ANSWER=1/2 ~
Simple probability is found by counting all the results which fit requirements and dividing by all possible results.
To find probability of two results in a row, multiply chance of first result by chance of second result.
Since you are replacing the marble before the second draw, we don’t have to figure out the various changes in odds for the different possible first draws. It’s just that simple.
There are 5 white marbles
There are 4 red marbles
There are always 20 marbles in all
5/20*4/20=1/4*1/5=1/20 or 1/2
By coincidence, the same as the chance of drawing the white marble in one draw.
Answer:
What is this?
Can't understand anything!
Answer:
they are rational numbers
Step-by-step explanation:
Any fraction with integers in numerator and denominator is a rational number.
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5, 6, 7, 11 are integers, so the fractions 5/11 and 7/6 are rational numbers.
9a-27b you must multiply 9 to everything
Answer:
The answer is (2,5)
Thanks! Please mark as brainliest!!!!
Step-by-step explanation: