Question about Texas Instruments TI-83 Plus Calculator

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How do I enter ln55-1 divided by 2? The answer is 1.5 however I'm coming up with 1.99

Posted by Anonymous on

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Be careful with the order of operations. Try (ln(55)-1)/2You can never have to many parenthesis. remberr PEMDAS ln is an exponent so you want to put it inside parenthesis in oder to follow the Order of operations.

Posted on Apr 10, 2015

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How to divide 1 2/3 by 3


First make 1 2/3 into a mixed fraction and then divide it by 3.
To make 1 2/3 into a mixed fraction, multiply the whole number, in this case, 1, by the denominator (the bottom number) and then add the numerator (the top number). Thus, we get (1*3+2)/3 or 5/3. Now we have to take 5/3 and divide it by 3. I was taught that in this case, dividing by 3 is the same as multiplying by 1/3. 5/3 x 1/3 = 5/9.

If you have access to a calculator you can always check this. On the calculator, do 2 divided by 3 and add 1. Now take that answer and divide by 3. Write down this answer. Now take 5 and divide by 9. Write down this answer. They should be the same.

Good luck.

Paul

Mar 17, 2015 | Office Equipment & Supplies

1 Answer

Calculating chemistry 1 scientific equation divided into another?


Use the rules for exponents and you will calculate it by hand
(1*10^-14)/(5*10^-12)=(1/5)*10^(-14+12)= 0.2*10^-2=2*10-3
To enter powers of 10 use the short-cut key [EE]
For example to enter 6.02*10^23 type in 6.02* [EE] 23. When you use the EE key, the base (10) should not appear.

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

1 Answer

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

1 Answer

40 divide 1half


If you are asking "What is 40 divided by 1/2".....
input 1: 40 / .5 input 2: 40 / (1/2)
Answer in both cases is 80.
OR
If you are asking "What is 40 divided into 1/2"......
input 1: .5 / 40 input 2: (1/2) / 40
Answer in both cases is 1/80 or .0125

Mar 14, 2011 | Texas Instruments TI-83 Plus Calculator

2 Answers

What is 126 divided by 9


With the TI-84 type in the following: [1] [2] [6] [divide] [9] [=]
This will give you 14.

Mar 03, 2011 | Texas Instruments TI-84 Plus Calculator

1 Answer

When I divide, answers show up wrong.


Answers show in an unexpected (by you) format, but they are correct and in conformity with the MODE settings of the calculator.

If you want to have the results displayed as decimal numbers,
  1. open the HOME screen.
  2. Press MODE to open the Mode configuration.
  3. Press F2 or use the DownArrow to reach the second page of settings.
  4. Move Cursor to highlight the option at the right of EXACT/APPROX.
  5. Use the right arrow to unfold the menu and select 3:APPROXIMATE.
  6. Press ENTER to Save the changes.

Mar 22, 2010 | Texas Instruments TI-89 Calculator

1 Answer

When I divided a problem EX. 3/2 the calculator will not answer in decimal


Hi,
You are not dividing problems, you are dividing number. This said, there is a simple way to ensure that the results of divisions are displayed in decimal form: It consists in putting a decimal mark (decimal point) at the end one integer (whole number)
ex:
3/2. gives 1.5
3./2 gives 1.5
3./2. gives 1.5

You can also configure your calculator to display all numerical results in decimal format. To do that press [MODE][F2]. Use the down arrow to select the ligne Exact/Approx, then use the right arrow to unfold the menu options 1:Auto
2:Exact
3:Approximate
Select 3:Approximate and press [ENTER]

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Hope it helps.

Nov 15, 2009 | Texas Instruments TI-89 Calculator

2 Answers

Mixed numbers


Proper fraction e.g. 3/5, input 3, divide, 5, =, answer 0.6

Improper fraction, either enter as improper fraction, or enter the whole number first, then +, then the proper fraction as before, then =.

E.g. 8/5 which is "1 and 3/5': enter 1, +, 3, "divide", 5 =, answer is 1.6

Or, just 8, "divide", 5, same 1.6 answer. Why go to mixed number first?

13/5 which is "2 and 3/5", enter 2, +, 3, "divide", 5, =, answer is 2.6. Or, just 13/5, same answer

Dec 17, 2008 | Texas Instruments TI-30XA Calculator

2 Answers

Ti-89


Easy! You can do either of the following:

(1) When you already have 37/2 as an answer... Press [F2] algebra, then go down 5: approx (, enter, and finally press in 37/2, enter again, and voila! 18.5....or type in approx(37/2)

(2) When you want your answer in decimal form, but don't want to break it down to two steps.... Press [your argument here] [green diamond button] [enter]

Jul 22, 2008 | Texas Instruments TI-89 Calculator

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