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elixir [45]
3 years ago
9

A boat traveled 175 miles downstream and back. The trip downstream took 5 hours. The trip back took 7 hours. What is the speed o

f the boat in still water?
Mathematics
1 answer:
Flura [38]3 years ago
4 0

Answer it would be 12 miles per hour

Step-by-step explanation:

ive took the test ITS CORRECT

PLSSSS MARK ME BRAINLIEST

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The rectangle shown has a perimeter of 86 cm and the given area. Its length is 7 more than three times its width. Write and solv
maxonik [38]

Length = 34 cm

Width= 9 cm

Step-by-step explanation:

Let the width of the rectangle to be.........w

Length is 7 more than three times the width..........3w+7

Perimeter = 86 cm

Perimeter of a rectangle = 2(l+w)

Perimeter of the rectangle = 2 (w + 3w +7)

                                             = 2w +6w + 14

                                      86= 8w +14

                                       86-14 =8w

                                        72=8w

                                        72/8 =8/8w

                                          9=w

Width= 9 cm

Length = 3*9 + 7= 27+7 = 34 cm

Learn More

Perimeter of a rectangle :brainly.com/question/13220601

Keywords: rectangle,perimeter,length, equation, dimensions

#LearnwithBrainly

8 0
3 years ago
What was the median number of posts made?
mariarad [96]

Using it's concept, it is found that the median number of posts made was of 8.5.

<h3>What is the median of a data-set?</h3>

The median of the data-set separates the bottom half from the upper half, that is, it is the 50th percentile.

In this problem, the total number of observations is the sum of the frequencies, hence:

T = 1 + 0 + 3 + 1 + 2 + 1 + 1 + 2 + 3 + 5 + 9 = 28

Even number, hence the median is the <u>mean between the 14th and the 15th elements</u>, of the ordered set, hence:

M = (8 + 9)/2 = 8.5.

To remind, the ordered set is: {0, 1, 1, 1, ..., 8, 8, 8,  9, 9, 9, 9, 9, 10, 10, 10, 10, 10, 10, 10, 10, 10}

The median number of posts made was of 8.5.

You can learn more about the median at brainly.com/question/16103295

6 0
2 years ago
Adult tickets cost 8 dollars students cost 4 of they sold 30more adult tickets as made 840 dollars how many adult tickets were s
g100num [7]
I do not quite understant
6 0
3 years ago
Given the following similar triangles,what is the area of triangle B
iren [92.7K]

Answer: 3.2 i think


Step-by-step explanation:


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3 years ago
PLEEEAAASSSEEE HELP ME I NEED IT IT'S URGENT!!!
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I think number 2 is 5
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