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mario62 [17]
4 years ago
5

Jina wants to measure the width of a river. She marks off two right triangles, as shown in the figure. The base of the larger tr

iangle has a length of 56m, and the base of the smaller triangle has a length of 26m. The height of the smaller triangle is 20.9m. How wide is the river? Round your answer to the nearest meter.
Mathematics
1 answer:
Brilliant_brown [7]4 years ago
7 0

Answer:

width of a river = 45m

Step-by-step explanation:

ration and proportion

let x = width of a river

x            20.9 m

------  =    --------

56 m       26 m

x = (20.9 * 56) / 26

x = 45 m

therefore the width of a river is 45 m

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Step-by-step explanation:

6 0
3 years ago
Solve using the distributive property: 28 x 9
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Answer:

252

Step-by-step explanation:

9 x 28 = (9 x 20) + (9 x 8)

9 x 20 = 180

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3 years ago
The following data represent scores on a pop quiz in a business statistics section. Suppose the data on quiz scores will be grou
ruslelena [56]

Answer:

Taking data:

                         28 78 74 89 72

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The answer is Width \ of\ class= 13

Step-by-step explanation:

As the data is not given in the question i'm guessing the data from the question i solved before

28 78 74 89 72

50 55 66 26 84

59 64 88 23 27

70 63 42 37 29

as taking the above data,

          Maximum\  value= 89

          Minimum\ vaue=23

          Number\ of\ classes\ scores\ are\ divided\ into =5\ classes

As we know for finding the width of class:

          Width\ of\ class = (max\ value - min\ value)/(\#\ of\  classes)

          Width = (89 - 23)/5 = 66/5

          Width = 13.2  ≈ 13

Note : By using the above given formula you can calculate the width of any data just by taking the maximum and minimum values of data and the number of classes the data is divided into.

8 0
3 years ago
Lea needs at least $240 to buy new headphones. She has already saved $30. She earns $14 per car that she washes. What is the lea
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210/14=15 cars

7 0
3 years ago
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Answer:

Step-by-step explanation:

we have 18,000 people

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18,000+3,960=14,960

5 0
3 years ago
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