5.04 Working with percentages
Express 5\dfrac{1}{2} as a percentage.
Express \dfrac{2}{3} as a mixed number percentage.
Express \dfrac{4}{9} as an exact percentage value.
Express the following fractions as percentages:
Express the following fractions as percentages, rounded to two decimal places:
Evaluate:
25\% of \$12
25\% of \$528
10\% of \$81
10\% of \$892
1.5\% of \$426.23
3.5\% of \$27\,599
49.8\% of \$890
18 \dfrac{2}{5}\% of \$8273
Evaluate:
25\% of 478\text{ pts}
60\% of 90\text{ kg}
40\% of 25\text{ gal}
30\% of 23 \text{ L}
28\% of 500 \text{ m}
72\% of 5500 \text{ ft}
16\% of 4 hours
33 \dfrac{1}{3}\% of 96 \text{ mL}
There are 30 different colored marbles in a jar.
Find the percentage of marbles, to the nearest whole percentage, that are:
Red
Blue
Green
Yellow
For an assignment, Xanthe spent 31 minutes in total on research. This represents 20\% of the total time she spent on the assignment.
How many minutes in total did she spend on her assignment?
Express the total time taken in hours and minutes.
A student survey found that \dfrac{1}{5} of students play Saturday sport, and that \dfrac{3}{5} of students play Sunday sport.
What percentage of students play a weekend sport?
What percentage of students do not play weekend sport?
Rodolfo and Jimmy are spellchecking an article before it is printed. Rodolfo checks \dfrac{3}{5} of the article and Jimmy checks 34\% of the article.
What percentage of the article have they checked altogether?
What percentage still needs to be checked?
Beth was given 20 minutes to solve a Rubik's Cube. She only needed 75\% of the time to finish it. How many minutes did she take?
On Monday, Derek had a full tank of 40\text{ L} gas. During the week, Derek used 55\% of the gas. How many liters of gas was used during the week?