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gogolik [260]
3 years ago
12

Let A and B be two events. The probability that event B occurs is 0.72. The probability that events B and A both occur is 0.24.

Mathematics
2 answers:
Sedaia [141]3 years ago
6 0
C is the answer to this question. I hope this helps.
myrzilka [38]3 years ago
6 0

Answer:C

Step-by-step explanation:

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Complete the two column proof
seraphim [82]
The answer is 12 I promise
8 0
3 years ago
What's the answer to this? and please explain.
vichka [17]
<h3>Answer: No, there isn't enough ribbon</h3>

===========================================================

Use this formula

a & b/c = (a*c+b)/c

to convert from a mixed number to an improper fraction

So,

a & b/c = (a*c+b)/c

3 & 3/4 = (3*4+3)/4

3 & 3/4 = 15/4

---------------------------------------------------

Next, we add the fractions 15/4 and 5/6. The denominators aren't the same, so we can't add right away. We need to get the denominators to the LCD.

In this case, the LCD is 4*6 = 24

  • The fraction 15/4 becomes 90/24 after multiplying top and bottom by 6.
  • The fraction 5/6 becomes 20/24 after multiplying top and bottom by 4

Now we can add the fractions:

90/24+20/24 = (90+20)/24 = 110/24

---------------------------------------------------

So far, we've added the 3&3/4 portion to the 5/6 portion to get the result 110/24

The last thing to do is to add on the two 1/3 ft pieces, which means we're adding on 2/3 of a foot

2/3 = 16/24 after multiplying top and bottom by 8

Add this to the result of the last section

110/24+16/24 = (110+16)/24 = 126/24

---------------------------------------------------

From here, we convert the improper fraction 126/24 to decimal form

Using a calculator, you should find that 126/24 = 5.25

The result is larger than 5, which means she used too much ribbon. There won't be enough ribbon to do everything she wants to do.

---------------------------------------------------

The shortcut we can take is to type the following into the calculator

3+3/4+5/6+2/3

doing so should lead to 5.25

5 0
3 years ago
Read 2 more answers
Annie earns $15 per hour babysitting. How many hours will it take her to earn $60?
mrs_skeptik [129]

Answer:

4 hours

Step-by-step explanation:

15 x 4 = 60

$60

6 0
3 years ago
Read 2 more answers
How did I I get this wronggggggg
SIZIF [17.4K]

Answer:

mhmmm  well i don't know what you got wrong but it was prob cus u didnt sum wrong or wasn't paying attention to what you were doing. Hope this helpss have a safe and joyful holiday

Step-by-step explanation:

8 0
3 years ago
Simplify the expression of 1.2x + 3y - 3 - 4.7x by combining like terms. ASAP
EastWind [94]

Answer:

-3.5x + 3y - 3

Step-by-step explanation:

1.2x + 3y - 3 - 4.7x

=> -3.5x + 3y - 3

Therefore, our simplified expression is -3.5x + 3y - 3

Hoped this helped.

5 0
2 years ago
Read 2 more answers
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