MGF1106 Lecture : Expressafractionasapercent, Expressadecimalasapercent, Expressapercentasadecimal, Expressapercentasafraction

18 views1 pages

Camilaabreu16

21 Mar 2022

School

Miami Dade College

Department

Mathematics: General & Finite

Course

MGF1106

Professor

For unlimited access to Class Notes, a Class+ subscription is required.

Document Summary

2/9/2022: please explain to the class what it means to, express a fraction as a percent, express a decimal as a percent, express a percent as a decimal, express a percent as a fraction. To express a fraction as a percent, divide the numerator by the denominator and multiply the result by 100. (or move the decimal twice to the right). That gives us a result of 0. 4; if we move the decimal two places to the right or multiply it by 100, we get a hinal result of 40%. Converting decimals to percents is the second step when converting fractions to percents, you just need multiply the answer by 100 or move the decimal twice to the right. To convert a percent to a decimal, we need to divide it by 100 instead of multiply. If you divide 40% by 100, you get 0. 4.

Related Questions

1. Before going on a diet, Joe weighed 235 lbs. He now weighs 205 lbs. His weight has changed by _______% (Round to 2 places after the decimal in percent)

2.Your scores test #1 and test #2 were 73 and 85, respectively. Your score improved by _____%. (Round to 2 places after the decimal in percent)

3.Convert (a) 137.84 % to a decimal; and (b) .06537 to a percent.

4.Solve for the following: (a) 12 + (3 + 7)² Ã· 10 + 5 = _______; and (b) 9 â 3 Ã· 1/3 -1 = _______.

5.Solve for X: 5 â (-3) -6 = -4 â (-7) + 8 â X. X = ________.

6. A fraction changes from 1/2 to 2/3. The numerator changed by _____%; the denominator changed by _____%; the value of the fraction changed by approximately _____%; and the value of the fraction changed by precisely _____% (Round all answers to 2 places after the decimal in percent)

7.Assume a Normal distribution with an average return of 10% and a standard deviation of 5%. What is the probability of an actual return of (a) more than 15%; and (b) less than zero?