U6: Q2 OL

Front

What is a percent proportion?

Back

A percent proportion is a way to express a relationship between a part and a whole in terms of percentage. It is often set up as part/whole = percent/100.

Front

How do you calculate the number of correct answers from a percentage?

Back

To find the number of correct answers, multiply the total number of questions by the percentage (as a decimal). For example, if there are 15 questions and the percentage is 80%, the calculation is 15 * 0.80 = 12.

Front

What is 10% of 30?

Back

10% of 30 is calculated by multiplying 30 by 0.10, which equals 3.

Front

How do you set up a percent proportion for finding a percentage of a group?

Back

To set up a percent proportion, use the formula: part (number of specific group members) / whole (total members) = percent (percentage of the specific group) / 100.

Front

If Alex got 80% of his homework correct, how do you express this as a fraction?

Back

80% can be expressed as the fraction 80/100, which simplifies to 4/5.

Front

What is the formula to find the total number when given a part and a percentage?

Back

The formula is: Total = Part / (Percentage/100). For example, if 3 is 10% of the total, then Total = 3 / (10/100) = 30.

Front

How do you round a number to the nearest tenth?

Back

To round to the nearest tenth, look at the hundredths place. If it is 5 or greater, round up the tenths place by one. If it is less than 5, keep the tenths place the same.

Front

What does it mean if 10% of a group is a certain number?

Back

It means that if you take the total number of the group and multiply it by 0.10, you will get that certain number.

Front

How can you check if your percent proportion is set up correctly?

Back

You can check by ensuring that the part and whole are correctly identified and that the percent is expressed as a fraction of 100.

Front

What is the relationship between percentages, fractions, and decimals?

Back

Percentages, fractions, and decimals are different ways to represent the same value. For example, 50% = 0.5 = 1/2.