Seudónimo Seudónimo
  • 02-12-2016
  • Mathematics
contestada

Estimate 40% of 20 equals

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TennisDuck TennisDuck
  • 02-12-2016
40% of 20 is 8 8 is the answer
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heyitsjassie
heyitsjassie heyitsjassie
  • 02-12-2016
40% of 20 equals 8.

First, we need to think that 20 is our 100%.
Let's make the variable v as the value we're looking for.

20/v = 100/40
We need to multiply both sides of the equation by v.
(20/v) * v = (100/40) * v

Now, we're left with 20 = 2.5x

We need to divide both sides of the equation to isolate the variable x.
20/2.5 = 2.5x/2.5
8 = x

Our final answer is 8.
Answer Link

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