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barxatty [35]
3 years ago
8

How can you quickly calculate 20 percent of any bill amount?

Mathematics
2 answers:
xenn [34]3 years ago
6 0
<span>Move the decimal point in your pretax bill one place to the left to get $5.375 from $53.75.Round up to the next easy number: $5.40.<span>Double that number to get $10.80, which is 20% of your original bill.</span></span>
wlad13 [49]3 years ago
4 0

Answer:

There are many ways to do this calculation. Few are listed below.

1. Whenever we say percent, that means divided by hundred. And any number divided by 100 will result in putting a decimal to two places left. Like 20% will becomes \frac{20}{100} = 0.20

And you can multiply the bill amount with 0.20 mentally.

2. You can also simply divide the total bill amount by 5, it will be equal to  20% of the total bill amount. Like if bill amount is $200.

\frac{200}{5}=40 and 0.20\times200=40. Both values are same.

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Answer:

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Francine has a piece of wood that is five 5/12 feet long she uses three 1/4 feet of the wood from a science project how much for just Francine have left.

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Francine has a piece of wood that is five 5/12 feet long.

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