5 is what percentage of 40?
Answer(s): A
Remember always that percentage is a mathematical expression for “a part of a whole” or per 100. For problems such as this, the following formula is very useful: part/whole=percentage/100. Since we want to know what percentage of 40 is 5, simply substitute the given numbers to the formula, and so we have: 5/40=percentage/100. 0.125 × 100=percentage. The correct answer is 12.5.
What is the decimal equivalent of 3/8?
Answer(s): B
To get the decimal equivalent of a fraction, simply divide the numerator by the denominator. For the fraction 3/8, divide 3 by 8 to get 0.375, the correct answer.
How many cubic centimeters (cc) are there in one milliliter (ml)?
Answer(s): C
Convert 86 degrees Fahrenheit to Celsius using the following formula: (F − 32) × 5/9 = C
Plug 86 degrees F into the given formula, thus, we have: (86 - 32) × 5/9= 54 × 5/9; multiply 54 and 5 equals 270; then 270 divided by 9 equals 30, the correct answer.
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