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Oksi-84 [34.3K]
3 years ago
13

What is the number that when you multiply by 2 and add 7 to the product you get is 10.8 pls answer

Mathematics
1 answer:
ValentinkaMS [17]3 years ago
4 0

Answer:

1.9

Step-by-step explanation:

2x+7=10.8

2x=3.8

x=1.9

1.9x2=3.8+7=10.8

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Brianna has 0.15 liter of a liquid. She will use 0.4 of this liquid. How many liters will she use?
alukav5142 [94]

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Step-by-step explanation:

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4 0
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3 years ago
The measure of an angle is 63°. 
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3 0
3 years ago
the numbers 1,2,3,4, and 5 are written on slips of paper, and 2 slips are drawn at random one at a time without replacet. find t
Tresset [83]

Consider such events:

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B - the sum of numbers is 4.

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Use formula for conditional probability:

Pr(A|B)=\dfrac{Pr(A\cap B)}{Pr(B)}.

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Pr(A\cap B)=\dfrac{1}{20}.

2. The event B consists in selecting two slips with the sum 4. The number of favorable outcomes is exactly 2 (1st slip 3 and 2nd slip 1 or 1st slip 1 and 2nd slip 3) and the number of all possible outcomes is 5·4=20 (you have 5 ways to select 1st slip and 4 ways to select 2nd slip). Then the probability of event B is

Pr(B)=\dfrac{2}{20}=\dfrac{1}{10}.

3. Then

Pr(A|B)=\dfrac{\frac{1}{20} }{\frac{1}{10} }=\dfrac{1}{2}.

Answer: \dfrac{1}{2}.

5 0
3 years ago
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