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How do you do long division

I need to know how to work percent change 28 minus 87 divided by 87

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Step 1:

do 28 - 87

Step 2:

divide by 87

Posted on Mar 17, 2013


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I need a quick cheat sheet for estimating profit on a construction project. I need it to show a given dollar amount times 1.1 = what %, times 1.2 = what percent and on up the scale.

Percent is just one divided by 100, then multiply. That's why the symbol looks like a division by 00. So just move the decimal point over three places, or .001 and .0012 and multiply. Or the easy way is to google 1.1 percent and 1.2 percent.

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How do I find out how much percentage of an increase from $655.00 to $1037.00?

The solution is a simple division problem. Divide the SMALLER number by the LARGER number (655.00 divided by 1037)

The answer is 0.6316297010607522 or simply put the percentage increase is 63.16 percent more (or you can say that 1037 is 163.16 percent of 655 - its a word game there).

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The total cost paid for the memorial service was $450.00. The supplies were $65.06, the labor was $50.00, how do we calculate the profit margins?

450 minus 65.06 minus 50 equals net
450 divided by net = percent of profit move decimal 2 places to the right

Nov 02, 2016 | Office Equipment & Supplies

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What is the percent of change in 40 is decreased to 18

(40 minus 18) divided by 40.
Multiply by 100 to convert from a fraction to a percentage.

Feb 09, 2015 | Office Equipment & Supplies

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How do I dived 9 dived by -1 5/7

1and 5/7 ==1.7142 (5/7 to get decimal point=.7142)

+ 9 divided by minus 1.7142= minus 5.1688

using the maths laws of multiplication and division of numbers where + and - indicies are used +X+ =+ and + X - = - and - X- = +

you will find answers on the web maths pages

Oct 06, 2014 | Office Equipment & Supplies

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Dividing 2 different scientic equations into another

Sorry but you are using the word EQUATION incorrectly. All you have is two numbers you want to divide one by the other.
Enter the numerator 1EE (-) 14, press the division key / then enter the 5 EE (-) 12. Press the = sign.
Note: to enter the negative sign in the exponents, use the change sign key marked (-), (+/-) or [+/-] . Do not use the regular MINUS sign.
When you use the EE key, you must not enter the 10. It is understood because EE is a shortcut for *10^.

Apr 06, 2014 | Texas Instruments TI-30XA Calculator

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I raised $948,963 last year. I raise $ 817,430 this year. Is that 9% less raised this year>

You can divide this years by last year and that gives you the percent you got this year compared to last. You raised about 86 percent of what you raised last year. so 100 percent minus 86 percent. That is equal to 14 percent. You raised 14 percent less this year.

Jun 14, 2011 | Office Equipment & Supplies

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The percent of 140 from 762.90 = ?

Sorry to say, soweeto54, but that question you've posted does not make much sense. It can be interpreted in three different ways, neither of which can be gleamed with much confidence. Yet I will still offer you three valid answers for your TI-83,

"The percent of 140 from 762.9 =". The troublesome part is the "from". Percents questions should be written in terms of "is" and "of".


RESPONSE 1. The question could be read as "what percent of 762.9 is 140?". To do this on your calculator you simply do 140 divided by 762.9. From there, you simply move the decimal point two digits to the right to convert it into an equivalent percentage. So, that should be [1][4][0] [/] [7][6][2][.][9] [=] on your TI83. This was an example of a "percent of" question.

RESPONSE 2. The question could be read as "what percent of 140 is 762.9?" To have your TI83 calculate this you simply do 762.9 divided by 140. Of course, you will then need to move the decimal over two spots to the right in order to turn it into an equivalent percentage. Yes, it probably is strange to think of a number being more than 100 percent of another but it is a valid statement which occurs in the real world every single day. Nonetheless, for your TI83 you just press [7][6][2][.][9] [/] [1][4][0] [=]. This was another example of a "percent of" question. In fact, this is just the decimal reciprocal of the previous answer.

RESPONSE 3. The question could also be read as "140 from 762.9 will leave me with what percentage?" IE, 762.9 minus 140 will yield a number which is "x" percent of the original. Here, you would just do 762.9 minus 140, then you would take that answer and divide it by 762.9. From there, you'd do the old usual and move the decimal over two spots to the right for a percentage result. So, for your TI83 you'd do [(] [7][6][2][.][9] [-] [1][4][0] [)] [/] [7][6][2][.][9] [=]. Viola. This was an example of a "percent change" question. In fact, this is just the complement to response number one.

Mar 12, 2011 | Texas Instruments TI-83 Plus Calculator

1 Answer

Need help with an assignment for a college paper. need to specify why hypothetical students made the mistakes in division and what the mistakes are and what feedback could be given. the ex. are 2388...

It would seem to me that the answer was found at a grade 3 or 4 level

If you divide 288 by 4 you get 97. Then the 1 is carried to the 2 leaving 12. 12 divided be 4 is 3 leaving a result of 397.

Second one....

217 divided by 5 is 43.4 or 43 with a remainder of 2.

Leaving 5 divided by 5 equaling 1.

Combining the 1 with the 43 with a remainder of 2 bringing you a total of 143 r2

This as mentioned would be at a grade 3 or 4 calculation with no understanding of how to properly divide.

I hope this helps and gives you the "A" you're looking for.

All the best.

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