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3 years ago

If 20 is 40% of a value, what is that value?

Mathematics

2 answers:

MissTica3 years ago

5 0

Answer:

D. 50

Step-by-step explanation:

Suppose we denote the "value" as the variable x. Now, we convert the words into mathematical equations:

40% "of" x "is" 20.

"Of" usually means multiply, and "is" usually means equal, so:

40% * x = 20

40/100 * x = 20

0.40 * x = 20

Now, we can just solve by dividing both sides by 0.40:

x = 50

Thus, our value is 50, so D.

Hope this helps!

GuDViN [60]3 years ago

3 0

20------40%

x-----100%

x=(20*100)/40

x=2000/40

x=50

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2 years ago

What is the distance between point C and point D?

e-lub [12.9K]

Answer:

B. 13 units

Step-by-step explanation:

let

(x1 , y1) = (-4 , -6)

(x2 , y2) = (1 , 6)

distance between CD = root (x2 - x1)^3 + (y2 - y1)

= root {1 - ( -4)}^2 + {6 - ( -6)}^2

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= root 169

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6 0

3 years ago

Read 2 more answers

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Brrunno [24]

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3 years ago

5.5% of x =19.84 find x

Softa [21]

Answer:

ur answer is

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3 years ago

Given the first type of plot indicated in each pair, which of the second plots could not always be generated from it?

Kisachek [45]

Answer:

d. box plot, stem and leaf

Step-by-step explanation:

The box plot depicts the five number summary minimum, 1st quartile, median, third quartile and maximum while stem and leaf plot shows every observation in data. So, when the box plot is given, we can't generate stem and leaf plot for the data because we don't have sufficient information in this scenario i.e., we don't have every data value to generate stem and leaf plot. Whereas, If the stem and leaf plot is given first then we can generate box plot from it because we have every data value to compute 5-number summary to generate box plot.

a. From dot plot, the histogram can be generated because dot plot represents every data value in the form of dots and from every data value, we can generate histogram.

b. From dot plot, the stem and leaf plot can be generated because dot plot represents every data value in the form of dots and from every data value, we can generate stem and leaf plot.

c. From stem and leaf plot, the dot plot can be generated because stem plot represents every data value in the form of stem and leaf i.e. 12 can be represented as 1 for a stem and 2 for a leaf (1 2) and so, from every data value we can generate dot plot.

d. From box plot, the stem and leaf plot can't be generated and the reason is explained in first paragraph. So, when the first type of plot is box plot then from it second plot stem and leaf plot can't be generated.

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3 years ago