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Sedbober [7]
3 years ago
12

15 books each of dimension 2 cm x 4 cm x 5 cm are stacked on a she

Mathematics
2 answers:
Elena L [17]3 years ago
7 0

Answer:

30cm

Step-by-step explanation:

Assuming that the thickness of the books is 2cm (This is a reasonable assumption, as books are almost always longer and wider than they are thick, and assuming that the books are stacked flat on top of one another, faces up or down, and not sideways, the question becomes 'What is the height of 15 books stacked on top of one another, if each book is 2cm thick?' The answer to this question is 15*2 or 30.

zalisa [80]3 years ago
4 0
30cm is the correct answer
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180 POINTS PLEASE HELP
Ostrovityanka [42]

Answer:

E) 300

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Step-by-step explanation:

E) 6*50=300

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7 0
4 years ago
In August 200920092009, Usain Bolt ran 100100100 meters in 9.589.589, point, 58 seconds (\text{sec})(sec)left parenthesis, start
Sveta_85 [38]

Answer:

<u>Usain Bolt's average speed in yards per second was 11.4</u>

Step-by-step explanation:

1. Let's review the information given to us to answer the question correctly:

World record of Usain Bolt = 9.589 seconds

Distance of the world record = 100 meters

1 yard = 0.9144 meters ⇒ 100 meters = 109.36 yards

2. What was Usain Bolt's average speed in yards per second?

Let's recall that the formula of speed is:

Speed = Distance/Time

Replacing with the values we know:

Usain Bolt's Speed = 109.36/9.589

<u>Usain Bolt's Speed = 11.4 yards per second (Rounding to one decimal place)</u>

6 0
3 years ago
What is the scale factor of the geometric sequence? <br> 200,100,50,25
Alchen [17]

The scale factor is 1/2 or .5 because 200*.5=100 and 100*.5=50 and so on

7 0
3 years ago
The three sides of a triangle are n, 4n−8, and 2n+8. If the perimeter of the triangle is 63 feet, what is the length of each sid
svlad2 [7]

Answer:

  9 ft, 28 ft, 26 ft

Step-by-step explanation:

The perimeter is the sum of side lengths, so ...

  P = a + b + c

  63 = n +(4n -8) +(2n +8) . . . . fill in the given side lengths

  63 = 7n . . . . . . simplify

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  2n +8 = 18 +8 = 26 . . . . third side length

The side lengths are 9 ft, 28 ft, 26 ft..

8 0
3 years ago
Notebook cost $1.20 each. This weekend they will be on sale for $0.80. What percentage is the sale
julsineya [31]
The discount is $.40 (1.20 - 0.80)
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=.33 * 100
The discount is 33%
4 0
3 years ago
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