<span>W = event where white marble is drawn
B = event where black marble is drawn
The two events W and B are independent. This is because the marble taken out on the first draw is put back into the bag. Since W and B are independent, we can use this rule
P(W and B) = P(w)*P(B)
Use the rule to get
P(W and B) = P(W)*P(B)
P(W and B) = (1/2)*(1/4)
P(W and B) = (1*1)/(2*4)
P(W and B) = 1/8
1/8 is equivalent to 0.125. Use long division or a calculator
0.125 = 12.5% </span>
Answer:
20%
Step-by-step explanation:
Well, it's actually relatively simple.
The first thing to do would be to write this in a fraction form. You payed 72,000 out of 360,000.
72,000/360,000.
now you take that fraction, and convert it's to its decimal form which will give you a 0.2.
0.2 in decimal form is converted to 20.0% (when you convert a decimal to a fraction, you multiply by 100, or move the decimal two places to the right).
Another way to do this is simplifying the fraction.
take 72,000/360,000 and find what X is when
72,000/360,000 = x/100
you will find that 72,000/360,000 Is equal to 20/100. since percents are calculated as out of a hundred. your answer would still come out as 20%
Answer:
-(2y+3)×(3y+5)
Step-by-step explanation:
- 3y(2y + 3) - 5(2y + 3)
Factor out - (2y+3)
-(2y+3)×(3y+5)
Answer:
0.485
Step-by-step explanation:
Just subtract 34.735 from 34.25
Answer is C.
Law of cosines.
cos-1(-80/240)
