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Arada [10]
3 years ago
14

I really need help!! Please answer with the work shown

Mathematics
1 answer:
Zarrin [17]3 years ago
4 0
5/7x+1/7=3

multiple both sides by 7
7•5/7x+7•1/7=7•3

reduce the numbers with 7
5x+7•1/7=7•3
5x+1=7•3
5x+1=21

move the constant to the right side of the equation and change its sign
5x+1=21
-1 -1
5x=21-1

subject the numbers
5x=20

divide both sides of the equation by 5
5x=20
÷5 ÷5

x=4
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*I explained a bit more in the comments of my answer.
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Rounding 2.289 to the nearest tenth
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The Table Shows a proportional relationship between x and y for each Value of x and y match it to the correct unit rate y/x in i
Elden [556K]

The correct proportions are given as follows:

  • x = 3, y = 27: 9/1.
  • x = 9, y = 81: 9/1.
  • x = 21, y = 126: 6/1.
  • x = 14, y = 84: 6/1.
  • x = 12, y = 36: 3/1.
  • x = 15, y = 45: 3/1.

<h3>What is a proportion?</h3>

A proportion is a fraction of a total amount, and the measures are related using a rule of three.

The proportions for this problem are given dividing y by x, hence:

  • x = 3, y = 27: 27/3 = 9, hence 9/1 has to be marked.
  • x = 9, y = 81: 81/9 = 9, hence 9/1 has to be marked.
  • x = 21, y = 126: 126/6 = 6, hence 6/1 has to be marked.
  • x = 14, y = 84: 84/14 = 6, hence 6/1 has to be marked.
  • x = 12, y = 36: 36/12 = 3, hence 3/1 has to be marked.
  • x = 15, y = 45: 45/15 = 3, hence 3/1 has to be marked.

More can be learned about proportions at brainly.com/question/24372153

#SPJ1

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A group of random people were polled about whether they prefer to communicate using text messages or by phone calls. The results
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Answer:

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Step-by-step explanation:

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85 out of 200 workers in a building arrive at 8:00 a.m. What percent of workers in the building do NOT arrive at 8:00 a.m.?
fiasKO [112]

Answer:

57.5 %

Step-by-step explanation:

First find out the number of workers that do not arrive by 8 am

200 -85 = 115

Take this number divided by the total

115/200 = .575

Change to percent form

57.5 %

8 0
3 years ago
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