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saveliy_v [14]
3 years ago
12

Equivalent expression of 4(6x+11)-5x

Mathematics
1 answer:
Lerok [7]3 years ago
8 0

Expand: 24x+44-5x

=19x+44

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A Web music store offers two versions of a popular song. The size of the standard version is 2.1 megabytes (MB). The size of the
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If the number of downloads of the standard version is x, and the high quality is x, 2.1*x+4.1*y=2761 (not 1010 due to that this is multiplied by 2.1 and 4.1, therefore representing the total amount of megabytes) In addition, there are 1010 total downloads, and it's either 2.1 MB or 4.1 MB, so x+y=1010.

We have 
2.1x+4.1y=2761
x+y=1010

Multiplying the second equation by -2.1 and adding it to the first equation, we get 2y=2761-1010*2.1=640 and by dividing both sides by 2 we get y=320 downloads of the high quality version


5 0
3 years ago
Sixty seven percent of the employees in a company have managerial positions, and 58 percent of the employees in the company have
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Answer: The proportion of employees who either have MBAs or are managers are 0.58.

Step-by-step explanation:

Since we have given that

Probability of employees having managerial positions = 67%

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So, using probability formulas, we get that

P(A\cup B)=P(A)+P(B)-P(A\cap B)\\\\P(A\cup B)=0.67+0.58-0.67\\\\P(A\cup B)=0.58

Hence, the proportion of employees who either have MBAs or are managers are 0.58.

7 0
3 years ago
20 is what present of 30?
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66.6667


20=x/100•30
Solve this equation and you will get your answer (66.6667)
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3 years ago
Leon got a reduction of $40 on a Geometry set
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D

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3 years ago
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