Question about Lands Phones

EACH STROKE OF A VACUUM PUMP EXTRACTS 5% OF THE AIR REMAINING IN A CONTAINER . WHAT DECIMAL FRACTION OF THE ORIGINAL AIR REMAINS IN THE CONTAINER AFTER 50 STROKES

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Posted on Jan 02, 2017

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2/5 of the total or $600.

If this is homework, be sure to show your work.

If this is homework, be sure to show your work.

Apr 04, 2014 | Office Equipment & Supplies

The TI-83 can only convert a decimal to a fraction if the denominator has no more than three digits.

Try . 5 MATH FRAC

Does that give you 1/2?

Try . 5 MATH FRAC

Does that give you 1/2?

Sep 17, 2012 | Texas Instruments TI-83 Plus Calculator

Decimal to fraction:
Type in your decimal (i.e. .5)
Then press [MATH] > press [ENTER] on [>FRAC]
Then press [ENTER] again
Example:
.5>Frac
1/2
For a fraction to decimal:
Simply type in the fraction and press [ENTER]
Example:
1/3
.33333333333
(*Note that the decimal value is truncated to fit the screen)

Hope that helps! Have fun calculating!

Hope that helps! Have fun calculating!

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

This calculator is incapable of displaying simplified fractions (i.e. 1 ½), you will have to use the decimal value or contain your complex fraction in parenthesis. (i.e. (5/2).)

Mar 01, 2011 | Texas Instruments BA-II Plus Calculator

Say you have a repeating decimal number 0.714285 714285 714285 etc. You identify the period (the repeating part) and in this case it is 714285.

You count the number of decimal places in the period: here it is 6. Your equivalent fraction is

Fraction= period/(99...9) where the number of 9's in the denominator is equal to the number of decimal places in the period. For this case, that is 6.

Thus

0.714285 714285 714285 etc.= 714285 / 999999

Reduce the fraction and you will find 5/7

This technique works for a repeating decimal number where the period starts just after the decimal mark.

If the periodic part does not start right after the decimal mark there are modifications to be made.

You count the number of decimal places in the period: here it is 6. Your equivalent fraction is

Fraction= period/(99...9) where the number of 9's in the denominator is equal to the number of decimal places in the period. For this case, that is 6.

Thus

0.714285 714285 714285 etc.= 714285 / 999999

Reduce the fraction and you will find 5/7

This technique works for a repeating decimal number where the period starts just after the decimal mark.

If the periodic part does not start right after the decimal mark there are modifications to be made.

Jan 16, 2011 | Office Equipment & Supplies

If you enter an improper fraction or a mixed fraction with the the [a b/c] key it will be displayed as a fraction. This result being displayed you can press the [F-D] key to convert the fraction to decimal. If you do nothing else and you press the [F-D] key again, the original fraction will be restored.

However, it seems that you cannot enter an arbitrary decimal number and convert it to a fraction. The [F-D] key seems to work one way : from a fraction to a decimal number. You will only recover a fraction if the original number was a fraction.

However, it seems that you cannot enter an arbitrary decimal number and convert it to a fraction. The [F-D] key seems to work one way : from a fraction to a decimal number. You will only recover a fraction if the original number was a fraction.

Jan 19, 2010 | Casio FX-9750GPlus Calculator

Hello,

There are several ways you can extract decimal numbers from this fine calculator.

**In MathIO Mode**

1. Once a fraction or radical is displayed press [S<=>D] button to convert it to decimal. Pressing it again restores the fraction or radical display.

2. Instead of pressing the [=] key to obtain a result, press [SHIFT][=]. The result will be displayed as a decimal number.

**In LineIO**

If you do not care for exact calculations with radicals and fractions, just change the default mode from MathIO to LineIO. To do so

press [SHIFT]{MODE][2:LineIO]. In this input/output mode all results are decimal.

Please be informed that with this mode you will not be able to access the formula templates that allow you to enter fraction as you see them in textbooks (the natural display format). You lose other neat functionalities also.

As a suggestion, if you like the natural display for input keep it as default, and press [SHIFT][=] to display decimal results or [S<=>D] to convert display to decimal format.

Hope it helps.

There are several ways you can extract decimal numbers from this fine calculator.

1. Once a fraction or radical is displayed press [S<=>D] button to convert it to decimal. Pressing it again restores the fraction or radical display.

2. Instead of pressing the [=] key to obtain a result, press [SHIFT][=]. The result will be displayed as a decimal number.

If you do not care for exact calculations with radicals and fractions, just change the default mode from MathIO to LineIO. To do so

press [SHIFT]{MODE][2:LineIO]. In this input/output mode all results are decimal.

Please be informed that with this mode you will not be able to access the formula templates that allow you to enter fraction as you see them in textbooks (the natural display format). You lose other neat functionalities also.

As a suggestion, if you like the natural display for input keep it as default, and press [SHIFT][=] to display decimal results or [S<=>D] to convert display to decimal format.

Hope it helps.

Nov 16, 2009 | Casio FX-115ES Scientific Calculator

Hello,

In addition to 1/2 =0.5, 1/3=0.33333333 , 1/4=0.25, 1/5=0.20 , 1/6=0.66666666666, 1/8= 0.125, 1/10 =0.1, there are two decimal numbers that are worth remembering because they are so easy to remember. These are

1/9 =0.111111111111111111111 ...

1/11 =0.099999999999999999999 .....

Your fraction is therefore equal to 1/9

I skimmed the whole manual but could not find a way to convert a decimal number to a fraction on the calculator. There are however two functions, one to extract the integer part [g][INTG], and the other [g][FRAC] to extract the fractiona part of a number.

Sorry. Hope it helps.

In addition to 1/2 =0.5, 1/3=0.33333333 , 1/4=0.25, 1/5=0.20 , 1/6=0.66666666666, 1/8= 0.125, 1/10 =0.1, there are two decimal numbers that are worth remembering because they are so easy to remember. These are

1/9 =0.111111111111111111111 ...

1/11 =0.099999999999999999999 .....

Your fraction is therefore equal to 1/9

I skimmed the whole manual but could not find a way to convert a decimal number to a fraction on the calculator. There are however two functions, one to extract the integer part [g][INTG], and the other [g][FRAC] to extract the fractiona part of a number.

Sorry. Hope it helps.

Oct 06, 2009 | HP 12c Calculator

Hello,

There is no fraction button. Any division of two integers you do is represented as a decimal number. If you want your fraction to remain a fraction you enter it as follows

**7[ / ] 19 [ MATH][1:ToFrac] [=] displays 7/19**

If you want to convert a decimal number into a proper fraction press**[MATH][1:ToFrac] .**

Exemple 7/19 [ENTER] gives .36842105. If without doing anything else, you press [MATH][1:ToFrac] you recover 7/19.

There are limitations related to the number of decimal digits in the floating point number.

.3684 [MATH][1:ToFrac][=] gives 921/2500 but

.36842 [MATH][1:ToFrac][=] gives .36842 : it is not converted to fraction.

Hope it helps

There is no fraction button. Any division of two integers you do is represented as a decimal number. If you want your fraction to remain a fraction you enter it as follows

If you want to convert a decimal number into a proper fraction press

Exemple 7/19 [ENTER] gives .36842105. If without doing anything else, you press [MATH][1:ToFrac] you recover 7/19.

There are limitations related to the number of decimal digits in the floating point number.

.3684 [MATH][1:ToFrac][=] gives 921/2500 but

.36842 [MATH][1:ToFrac][=] gives .36842 : it is not converted to fraction.

Hope it helps

Sep 16, 2009 | Texas Instruments TI-83 Plus Calculator

This is a partial solution for I do not have the TI89 titanium with me.

1. The easiest way is to insert the decimal mark (. dot or , comma) at the end of one of the elements of the fraction (numerator or denominator).

Ex: if you enter 1/2 the calculator displays the fraction 1/2, but if you enter 1./2 or 1/2. or 1./2. it displays 0.5

2. You can also configure the EXACT/APPROXIMATE mode option of the calculator ( Press Mode then scroll till you see exact/approximate) then choose AUTO, EXACT, or APPROXIMATE.

In the EXACT option the calculator will perform exact algebra ( Pi remains Pi not 3.14159... ).

In the APPROXIMATE option, calculations are performed numerically (everything is treated as a decimal number.)

In the AUTO option the calculator will try its best to keep the results as exact as possible :

x/6 + 1/2 yields x/6 + 1/2

x/6. + 1/2 becomes .166666..x +1/2

x/6. + 1./2 becomes .16666..x +0.5

My suggestion ( if you allow me) : Leave the calculator set on AUTO, and convert to decimals as needed by putting the decimal mark at the end of an integer.

I hope it helps.

1. The easiest way is to insert the decimal mark (. dot or , comma) at the end of one of the elements of the fraction (numerator or denominator).

Ex: if you enter 1/2 the calculator displays the fraction 1/2, but if you enter 1./2 or 1/2. or 1./2. it displays 0.5

2. You can also configure the EXACT/APPROXIMATE mode option of the calculator ( Press Mode then scroll till you see exact/approximate) then choose AUTO, EXACT, or APPROXIMATE.

In the EXACT option the calculator will perform exact algebra ( Pi remains Pi not 3.14159... ).

In the APPROXIMATE option, calculations are performed numerically (everything is treated as a decimal number.)

In the AUTO option the calculator will try its best to keep the results as exact as possible :

x/6 + 1/2 yields x/6 + 1/2

x/6. + 1/2 becomes .166666..x +1/2

x/6. + 1./2 becomes .16666..x +0.5

My suggestion ( if you allow me) : Leave the calculator set on AUTO, and convert to decimals as needed by putting the decimal mark at the end of an integer.

I hope it helps.

Jul 22, 2009 | Casio FX-115ES Scientific Calculator

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