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vekshin1
3 years ago
14

Select the pairs of ratios that form a true proportion. Choose all that apply A 3: 6 and 5:10 B 4/12 and 6/18 C 20/5 and 10/3 D

24: 36 and 8: 9
Mathematics
1 answer:
Naddika [18.5K]3 years ago
5 0

Answer:

The only grouping that is a true proportion is B.

Step-by-step explanation:

To tell if two are proportional, simply multiply the numerator from the first by the denominator of the second. Then multiply the denominator from the first and the numerator for the second. If the two products are the same, then it is proportional.

B) 4/12 = 6/18

4*18 = 12 * 6

72 = 72

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Can someone help me with this and tell me the steps too
mash [69]

Answer:

B. 2.2

Step-by-step explanation:

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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:

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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

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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
12. Determine the area of the given parallelogram with length 11 and altitude 5.
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A= base times height
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55
4 0
3 years ago
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