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Ainat [17]
3 years ago
10

Please help I’m really confused

Mathematics
1 answer:
IgorC [24]3 years ago
5 0

Answer:

Your answer will be 0.80

Step-by-step explanation:

P(A or B) = P(A) + P(B) - P(A and B)

P(A or B) = 0.60 + 0.30 - 0.10

P(A or B) = 0.80

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Sindrei [870]

Answer:

where is the diagram

4 0
3 years ago
What is the difference of 8 times a number r and 12?
lapo4ka [179]

Answer:

The difference of 8 times a number r and 12 is solved for a number r and is given by r=\frac{3}{2}

Step-by-step explanation:

Given problem is the difference of 8 times a number r and 12

It can be written as

(8\times r)-12

To simplify the above expression :

8r-12

8r-12=0

8r-12+12=0+12 ( using addition property of equality )

8r=12

8r(\frac{1}{8})=12(\frac{1}{8}) (using division property of equality )

r=\frac{3}{2}

Therefore r=\frac{3}{2}

Therefore the difference of 8 times a number r and 12 is solved for a number r and is given by r=\frac{3}{2}

8 0
3 years ago
The difference of some number and eighteen
PIT_PIT [208]
The answer is x-18 Do need the complete answer of your question??
8 0
3 years ago
3x + 2y = -10<br> 5x + y = 9
soldier1979 [14.2K]

Answer:

x=4, y=-11. (4, -11).

Step-by-step explanation:

3x+2y=-10

5x+y=9

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

3x+2y=-10

-2(5x+y)=-2(9)

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

3x+2y=-10

-10x-2y=-18

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

-7x=-28

7x=28

x=28/7=4

5(4)+y=9

20+y=9

y=9-20=-11

7 0
3 years ago
Kate is six, danny is triple kate's age, beth is half of danny's age. how old is beth?
4vir4ik [10]
Danny is 3*6=18
Beth is 9 years old
5 0
3 years ago
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