Percents, Fractions, and Decimals
How do you convert from a decimal to a percent?
Multiply by 100
Order the following from smallest to biggest:
7, -4, 0, -10, 12
-10, -4, 0, 7, 12
What is the percent proportion?
is/of = %/100
Using the percent equation: 10.5 is what percent of 35?
30%
Two fractions that are equal to each other
How do you convert from a fraction to a decimal?
Divide the numerator by the denominator.
Order the numbers from smallest to biggest
1/2, 1/10, 1/5, 1/8, 1
1/10, 1/8, 1/5, 1/2, 1
Using the percent proportion: What percent is 8 of 10?
80%
Using the percent equation: What percent is 30 of 40?
75%
Solve the proportion by equivalent ratios:
1/2 = x/6
x=3
Convert 4/5 to a percent
80%
Order the numbers from smallest to biggest
1/2, 0.6, 2/5, -1/3
-1/3, 2/5, 1/2, 0.6
Using the percent proportion: What number is 20% of 40?
8
Using the percent equation: 46 is 40% of what number?
115
Solve the proportion by algebra:
x/4 = 3/8
x=1.5
Convert 56% to a fraction
14/25
Order the numbers from smallest to biggest
6%, 1/16, 0.07, 1/2, 40%
6%, 1/16, 0.07, 40%, 1/2
Using the percent proportion: 42 is 33% of what number?
126
Using the percent equation: What number is 45% of 60?
27
Solve the proportion by cross multiplication:
4/x = 7/9
Round to the nearest tenth if necessary.
x = 5.1
Convert 0.444 to a fraction
111/250
Order the number from smallest to biggest
1/4, 3/8, 4%, 20%, 0.09, 0.39
4%, 0.09, 20%, 1/4, 3/8, 0.39
A baseball player won 80% of the games he pitched. If he pitched 35 ball games, how many did he win?
28 games
Find the percent of sales tax on a food total. $6.75 is what percent of $33.75?
20%
My mom made 72 cookies in 4 hours. How many could she make in 7 hours?
126 cookies