- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
To use the power, you use the y to the x key, above the EXP key. To enter 2 to the power of 4, you enter 2 hit the y to the x key and enter 4 and hit enter.
To use percent function, you enter the percent key after the number. To calculate Interest, where Interest = Principal x Interest x Time. For example, if the principal is $1,000, the interest rate is 8%, and time/term is 4 years, we would enter 1000 x 8 Percent x 4. When the8 is entered followed by the percent key, it should turn into 0.08.
Count the number of digits (d) to the right of the decimal point of the decimal number.Example: 2.56 has 2 digits to the right of the decimal point, so d=2.
Calculate the factor (f) for making the decimal number an integer:
f = 10 to power d
Example: f = 10 power 2 = 100
Multiply and divide the decimal number x by the factor f:
x * f / f = y / f
Example:
2.56 * 100 / 100 = 256 / 100
Find the greatest common divisor (gcd) of the fraction.
Example:
gcd(256,100) = 4
Reduce the fraction by dividing the numerator and denominator by the gcd value:
Example:
256 / 100 = (256/4) / (100/4) = 64/25
Example
One percent is equal to one hundredth:
1% = 1/100
So in order to convert percent to fraction, divide the percent by 100% and reduce the fraction.
For example 56% is equal to 56/100 with gcd=4 is equal to 14/25:
56% = 56/100 = 14/25
change =(new value-old value)/(old value)
Percent change =change*100 %
change=(8900.00-8640.00)/8640.00=0.0301
Percent change=0.0301*100%=3.01%
Since the change is positive, the new value is higher than the old value, this change is an increase. Percent increase=3.01 %
A percentage increase from a value a to a value b is defined as Percent increase=(b-a)/a*100 percent. In your case it is (200-70)/70=1.857. Multiply this number by 100 and append the percent symbol. Thus increase=185.7 percent or about 186 percent.
There are couple of materials in which sunglassess are made of. 1. Glass Lenses - it's has number of advantages: -Exceptional scratch resistance (don't need scratch resistant coating). -Excellent optical clarity. -Anti-reflective (AR) coating adheres to glass very well.Disadvantages are:-At least twice the weight of plastic or polycarbonate lenses. -About 25 to 40 percent thicker than polycarbonate and high index plastic lenses. -Can shatter or chip easier than lenses made of other materials. -Require a special coating to provide 100% UV protection Second type is Plastic Lenses:Advantages:
Lightweight - About half the weight of glass lenses. Plastic lenses accept tints easily. More shatter - resistant than glass lenses.
Disadvantages:
About 20 to 35 percent thicker than polycarbonate or high index plastic lenses. Require scratch-resistant coating for added durability. Require a special coating to provide 100% UV protection. Another type is Polycarbonate Lenses:Advantages: Safest lens material - 10 times more impact resistant than other lenses. Thin - About 20 to 25 percent thinner than plastic or glass lenses. Lightweight - About 20 percent lighter than plastic lenses. Blocks 100 percent UV rays without needing a special coating. Disadvantages: Requires scratch-resistant coating for durability. Peripheral vision may be slightly less clear in strong prescription powers. More lens reflections than glass or plastic lenses (AR coating recommended). High Index Plastic Lenses-Advantages:
Lightweight - Between plastic and polycarbonate lenses in weight. Thin - About 15 to 30 percent thinner than plastic lenses. Better peripheral optics than polycarbonate lenses (for prescription sunglasses). Disadvantages: Requires scratch-resistant coating for durability. More lens reflections than glass or plastic lenses (AR coating recommended)
Hi. Try this steps on using your math calculator for the percentage function.
Hope This Helps
Step 1. Note that not all calculators behave the same way as far as the percentage key is concerned. Thus, test the examples in this article on your calculator. If your calculator does not have the percent key or does not behave in the way described here, don't despair - you can still use it to calculate percentages, it's just that you will have to press a few more buttons.
Step 2. Let's calculate a tip on your restaurant bill. Suppose your bill happens to be $64.35 and you would like to leave 15% tip.
Type the following into your calculator: 64.35 * 15 % Answer: 9.6525 or $9.65 after rounding.
Most simple calculators will give an answer right here without having to press the = sign. If yours does not, press = and see if you get the right answer.
Alternatively, you can calculate this percentage by typing in 64.35 * 15 / 100 or 64.35 * 0.15
Thus, you may have observed that all that the percent key did here was division by a hundred.
Step 3. Let's calculate a grade percentage - say you got 34 out of a maximum of 40 points.
To figure out your grade percentage type in: 34 / 40 % Answer: 85
Alternatively, without the percent key: 34 / 40 * 100
Step 4. Let's calculate a sale price on those shoes that originally cost $139, but are now discounted by 35%.
On your calculator type in: 139 - 35 % = Answer: 90.35 or $90.35
This calculation is amazingly easy with the percent key! Alternatively, you would first have to calculate what the 35% of the $139 is and then subtract it from 139: 139 * 35 / 100 = 48.65 139 - 48.65 = 90.35
×