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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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<h3>What is theoretical probability?</h3>

Theoretical probability of an event is the ratio of number of favourable outcome to the total expected number of outcome of that event.

Five students, Adriana, Ben, Chandra, Diana, and Ernesto, would each like one of the four spots at the regional science fair.

Their names are placed in a hat, and four names are chosen at random to decide who attends the fair.

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Here one spot needs to be fixed for Chandra. Now the total number of outcome remain 4 and favourable outcome remain 3.

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Thus, the theoretical probability that Chandra will be chosen as one of the science fair participants is 0.8 or 80%.

Learn more about the theoretical probability here;

brainly.com/question/8652467

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