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Say you've just eaten a decent meal with some good service at a decent restaurant and you want to tip your waitress 18%, but the bill comes to $37.62.
In order to estimate what 18% is of that bill, first calculate what 10% of it is, which can be easily done by moving the decimal place over to the left by one. 10% of $37.62 is $3.76. Next, find out what 20% of the bill is by doubling this last number. 20% of $37.62 = 2 X 10% of $37.62 = 2 X $3.76 = $7.52. Now, you know that 18% must fall somewhere between $3.76 and $7.52, and in fact, you know that it will fall closer to the larger value than the smaller. Therefore, a tip of $6.50 seems like a pretty good estimate of what you were trying to do.
Let's double check.
$6.50/$37.62 = 17.3%. So, we weren't exact, but we were close, and all we did was estimate using percentages, and trust me, the waitress will be happy with that tip!
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When using percents what does the letter b stand for?
percent of base
How can you solve problems using percents?
There is no single method. There are different methods for different problems.
How do you find percents using a proportion?
to find percents using a proportion u first put the percent over 100 and put the whole number (number that you are tyring to find the percent of) over one. than you multiply those Example- 29 500 ___ times ____ 100 1 than you would multiply them
Are fractions percents?
No, they are not.
How are percents used in daily math?
Percents are used to calculate tax on EVERY store purchase,and to calculate discounts on every "special" or "bargain".If you can't calculate percents, you can't catch mistakes or avoid being cheated.
What is the estimate with percents called?
the *t.k=-44327=`~=(:
How do you estimate with percents?
divide the two numbers then divide
Estimate 4 out of 41 in percents?
Four out of 41 is approximately 9.8%
When do you compare using ratios percents and rates and when do you compare using differences?
when you are specifically comparing 2 sets of data (2 #'s, 2 percents, 2 rates ect.)
How do you estimate percents?
using an example of a school test: in this test you got 40 out of 60. to determine the % you got, you divide 40 by 60 then multiply by 100 to get the percentage. this roughly works out to 66%
How many people in the world using the Internet in percents?
75%
When using percents what does the letter b stand for?
percent of base
How would you make a comparison using percents?
by simplifying the given numbers
What kind of math do accountants use for example using decimals?
Fractions and Percents.
How do you convert percents to degrees when using circle graph?
Multiply the percentage by 3.6
How can you solve problems using percents?
There is no single method. There are different methods for different problems.
What are three ways to solve for percents using proportions?
nevermind, i just realized it. It's is/of=%/100
