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ElenaW [278]
3 years ago
14

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

D.

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Answer:

Step-by-step explanation:

Hello!

The variable of interest is the readings on thermometers. This variable is normally distributed with mean μ= 0 degrees C and standard deviation σ= 1.00 degrees C.

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(see attachment)

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