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Hesi A2 Math formulas, conversions Exam Questions and Answers
Hesi A2 Math formulas, conversions Exam Questions and Answers
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Hesi A2 Math formulas, conversionsExam Questions and Answers
How to convert a fraction to percent? - - Divide the top of the fraction by the
bottom, multiply by 100 & add % sign.
Ex. 2/3 = 66.7%
- How to convert a percent to fraction? - - Step 1: Write down the percent
divided by 100 like this: percent/100
Step 2: If the percent is not a whole number, then multiply both top and
bottom by 10 for every number after the decimal point. (For example, if
there is one number after the decimal, then use 10, if there are two then use
100, etc.)
Step 3: Simplify (or reduce) the fraction
Ex. 75% = 75/100 = 15/20 = 3/4
- Convert 62.5% to a fraction - - Ex. Step 1: write down.
62.5% = 62.5/100
Step 2: multiply both top & bottom by 10.
= 62.5/100 *10 = 625/1000
Step 3: Simplify the fraction.
625/1000 Divided by 25 = 25/40 can go lower if divided by 5 which = 5/8
- A sample contains 2/3 oz. of liquid. How many milliliters (mL) is this? - - To
convert oz. to mL, multiply by 30 oz./mL.
2/3 * 30 = 60/3 = 20
- Instructions require you to dilute a powder in 3 quarts of water. You only
have a container that is marked in liters. How many liters would you use to
dilute the powder? - - 1 Quart = 32 oz
Therefore, 3 Quarts = 96oz.
There are 30 milliliters per oz., so 96 oz. = 2,880 milliliters
There are 1000 milliliters per liter, so 2,880 mL = 2.88 Liters
Or
1 Quart = 0.946 Liter *3= 2.838 = 2.88 L
- 35% to fraction - - 35/100 = 7/20
- 0.7/10 = N/100 - - cross multiply = 10N/70=7
or =0.7*100/10 = 0.7*10 = 7
- 1 inch = - - 2.54 centimeters
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