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Lapatulllka [165]
2 years ago
14

If the theoretical probability of a event occurring is 5/7 what is the theoretical probability of the event not occurring

Mathematics
2 answers:
elena-14-01-66 [18.8K]2 years ago
5 0
2/7 chance it not happening
IgorC [24]2 years ago
3 0
2/7 of a chance of it not occurring 
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Kara and Sonny went to see a movie at the local theater.
CaHeK987 [17]

Answer:

popcorn=4$

soft drink=4.5$

Step-by-step explanation:

  • if we used omitting method:

1-we multiply (p+s=8.5) by (-2) so we could get rid of (s) and be leftover with (p)

so: (-2p-2s= -17)

2- we subtract this equation from (p+2s=13) and the result will be (-p= -4)

3- divide them by (-1) and the result is (p=4)

4-(p+s=8.5) ,substitute (p) with (4) and make it go to the other side with negative sign and the result of (s) is (8.5-4=4.5)

  • if we used substituting method:

1-(p+s=8.50), we will make (s) go to the other side with negative sign so the result is (p=8.50-s)

2-(p+2s=13.00), substitute (p) with (8.50-s):

(8.50-s+2s=13)

3- make (8.50) go to the other side with negative sign:

(s=13-8.50=4.5) and then you could get (p)

8 0
3 years ago
Which is the equation of a line that has a slope of 5 and passes through point (2, -3)?
patriot [66]
The answer is C y=1/2x+2
8 0
3 years ago
What is the value of t?
tresset_1 [31]

Answer: attached 47 degrees

Step-by-step explanation:

There is three inner triangles the total angle is 540 or 180*3 see comment

3 0
3 years ago
Mason, a hardwood flooring installer, needs to calculate the amount of hardwood flooring needed to cover a floor that's 33⁄4 yar
Aleksandr-060686 [28]

Answer:

20 5/8 yd^2

Step-by-step explanation:

width = 3 3/4 yd

length = 5 1/2 yd

First change both measurements to fractions.

3 3/4 = 3 + 3/4 = 12/4 + 3/4 = 15/4

5 1/2 = 5 + 1/2 = 10/2 + 1/2 = 11/2

area = length * width

area = 15/4 yd * 11/2 yd

area = (15 * 11)/(4 * 2) yd^2

area = 165/8 yd^2

165/8 = 20 remainder 5

area = 20 5/8 yd^2

3 0
3 years ago
If a person who works 40 hours per week earns $52,000 per year, estimate that person’s hourly wage. Use the estimate that there
oksano4ka [1.4K]
The hourly wage is approximately $26 per hour. Find out how many hours the person works per year by multiplying 40 x 50 to get 2,000 hours. Then divide 52,000 by 2,000 to get the person's hourly wage, which is $26 hours per hour.
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3 years ago
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