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lidiya [134]
2 years ago
15

Translate the phrase into an inequality: Seven plus a number x is at most twenty

Mathematics
1 answer:
Len [333]2 years ago
3 0

At most means less than or equal to:

7 + x ≤ 20

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The answer to that is  2x - 10
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22% of the customers visiting the suit department of a certain store will purchase a suit, 30% will purchase a shirt and 28% wil
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Answer:

If there are 1000 customers in the store one week, how many will purchase exactly one of these items

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Step-by-step explanation:

A The event that a persons buys a suit  

B The event that a person buys a shirt  

C The event that a person buys a tie  

 

P(A)=  22%

P(B)=  30%

P(C)=  28%

P(AB)= 11%

P(AC)= 14%

P(BC)= 10%

P(ABC)= 6%

A u B u C Is the event that any item is bougth

AC u AC u BC Is the event that any two events occured

So the wanted probability is

P[(A u B u C )(AB u AC u BC)^c

P[(A u B u C )=P(AB)+ P(BC)+P(BC)

P[(A u B u C ) =0.22+0.30+0.28-0.11-0.14.-0.10+0.06

                      =0,51

0,51=+0,23+P[(A u B u C )(AB u AC u BC)^c

        =0,28

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Which lines must be parallel?
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Answer:

Step-by-step explanation:

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This means that if a line is perpendicular to a line that has slope m, then the slope of the line is -1 / m. For example, we found that the slope of the line y = (1/2)x + 3 is 1/2. Thus any line that is perpendicular to this line would have slope -2 /1 = -2.

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3 years ago
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