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What does a constant ratio between consective terms mean

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Posted on Jan 02, 2017

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SOURCE: I've heard the term "expense ratio" referred to in

Basic & simple answer...
An Expense Ratio is: What does it cost you to make money in any given fund with expenses?
The lower that ratio, the more you net. Simple
So... when looking for a good fund, find the experience and history of a Good to Excellent Fund Manager, and then compare Expense Ratios, look for the lowest, like the 12-B1's

Posted on Apr 08, 2015

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This a picture of the freeze frame for my 99 lexus Rx 300. I would like to know what it means and are these normal parameters?


Yes, looks normal, and good. Calculated load is not much meaning, as it changes constantly. ECT of, oh that is centigrade, not sure how that translates to Fahrenheit, but it may be low from not running long...
Your fuel trims (both short term and long term-STFT, LTFT) are very good-showing that fuel is not being added or subtracted by the computer to maintain correct air/fuel ratio. Fuel trim numbers should be close to zero. It is when fuel trim changes by double digits-either positive or negative-that there is an indicated problem. For example, say you had a vacuum hose leak- sucking in extra air to the engine- then you could see STFT number go positive by double digits-meaning the computer senses a lean condition and is adding fuel to compensate. But your fuel trims show the air/fuel ratio must be correct-no change in fuel trims-the positive 2.3 in LTFT is negligible- not a problem.

Nov 07, 2016 | 1999 Lexus RX 300

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What does running rich mean? And is it expensive to fix?


Running rich is a term to describe the fuel to air ratio as being to " rich" with fuel and simply means you need more air.
Usually done by adjusting the carb.

Jan 02, 2016 | Cars & Trucks

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I've heard the term "expense ratio" referred to in terms of mutual funds. What does this term mean?


An expense ratio is how investors compare different expenses across different funds. The expense ratio is the 12b-1 fee with the management fee and any other fund expenses and then this total is divided by the average daily net assets.

Aug 19, 2013 | Finance

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What is an 02 sensor


O2 is the chemical designation for oxygen. The engine computer monitors the oxygen content in the exhaust stream to determine if the air-fuel ratio is correct, and uses the information to set the pulse width of the injectors-wider pulse equals more fuel sprayed into cylinders, shorter pulse means less fuel.
The sensor is very reliable (when they are good and not contaminated) in finding the oxygen content. Too much oxygen in the exhaust means the air-fuel ratio is too lean-needs more gas. Too little oxygen means the ratio is too rich, so computer will trim back the injector pulse width.

The system works very well at keeping the theoretically correct "stoichiometric ratio" of 14.7 parts air to 1 part fuel for complete combustion in the cylinders. You will find the computer uses "short term fuel trim" to hover just above and just below the correct ratio of fuel and air-so the oxygen sensor is always switching back and forth between lean and rich signals, constantly. Technicians use this to determine computer and sensor are operating correctly. If lean-rich switching is not occuring at a fast enough rate, it points to a problem . What is called a "lazy o2 sensor" is one that doesn't switch fast enough-one that needs replacing. Oil or carbon deposits can also contaminate the sensors, ruining their effectiveness. And sometimes they just quit working.

Mar 19, 2013 | Cars & Trucks

1 Answer

How to do ratios on calculator


Most of the time a ratio is nothing but the division of two quantities. If you have a fraction key, enter one term of the ratio as numerator, and the second term as denominator. If you do not have a fraction key just use the division key.

May 02, 2012 | Office Equipment & Supplies

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Can you do any ratio on the cauculator


Most of the time a ratio is nothing but the division of two quantities. If you have a fraction key, enter one term of the ratio as numerator, and the second term as denominator. If you do not have a fraction key just use the division key.
According to the name Fraction Mate, you calculator can do fractions. Enter your ratios as you would fractions.

May 02, 2012 | Casio Fraction Mate Calculator

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Ratios


1/25 IS the ratio of 1 to 25. There is not much you can say about it.
Can it be reduced to simpler terms? No! because there no factor common to the numerator (1) and the denominator (25) which you can simplify.
So 1/25 is in its reduced form.

Case of the ratio 2/100
It is clear that we can write the numerator as 1*2. To hope to reduce the ratio to simpler terms we must be able to find a factor that is common to the numerator and the denominator.

Although 100 =1*100=2*50=4*25=4*5*5 it is clear that the only factors common to 2 and 100 are 1, and 2.
To take 1 amounts to doing nothing, but if we take 2 we can write
2/100= (2*1)/(2*50)
Simplifying by 2 (the two 2 cancel each other) we get
2/100=1/50
That is the reduced form.

May 26, 2010 | Vivendi Excel@ Mathematics Study Skills...

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What is a STFT B1(%) -1.56. WHAT DOES THAT MEAN?


Here is some general information to get you started...
(I am quoting directly from several PDF sources, Googled).

STFT B1 = Short Term Fuel Trim Bank 1. This is the fuel correction percentage being used by the closed loop fuel strategy for Bank 1 (if a V style engine or for all cylinders if an inline engine). If the fuel system is in open loop, this number will be reported as 0%

Fuel trim refers to the feedback compensation value compared against the basic injection time. Fuel trim includes short–term fuel trim and long–term fuel trim.

Short–term fuel trim is the short–term fuel compensation used to maintain the air–fuel ratio at its ideal theoretical value. The signal from the heated oxygen sensor indicates whether the air–fuel ratio is RICH or LEAN compared to the ideal theoretical value, triggering a reduction in fuel volume if the air–fuel ratio is rich, and an increase in fuel volume if it is lean.

Long–term fuel trim is overall fuel compensation carried out long–term to compensate for continual deviation of the short–term fuel trim form the central value due to individual engine differences, wear over time and changes in the usage environment.

If both the short–term fuel trim and long–term fuel trim are LEAN or RICH beyond a certain value, it is detected as a malfunction and the check engine warning (CHK ENG) lights up.

If the total of the short–term fuel trim value and long–term fuel trim value is within ± 25 %, the system is functioning normally.

Apr 07, 2010 | 1998 Jeep Grand Cherokee

1 Answer

Write the ratio as a fraction in lowest terms. 7


multiply each by 5 to get whole numbers. your ratio will be 35:26

Feb 18, 2010 | Core Learning Fractions Step-By-Step...

1 Answer

Contrast ratio of tft monitors


Contrast ratio is the ratio between black and white. So low contrast ratio (5000:1) means you can;t see the screen so well in a bright room (where there's a lot of sunlight) A higher contrast ratio (20000:1) means the screen is brighter so easier to see in bright rooms.

Pixel pitch refers to the distance between pixels. The lower the pixel pitch, the sharper the image

Feb 04, 2008 | Audio Players & Recorders

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