Percent Proportions

Front

What is a percent proportion?

Back

A percent proportion is a way to express a part of a whole as a percentage. It is calculated by dividing the part by the whole and then multiplying by 100.

Front

How do you calculate the percentage of a group that meets a certain condition?

Back

To calculate the percentage, divide the number of people who meet the condition by the total number of people in the group, then multiply by 100.

Front

If 12 out of 48 people did not watch a documentary, how do you find the percentage of those who did watch it?

Back

First, find the number of people who watched it: 48 - 12 = 36. Then, calculate the percentage: (36/48) * 100 = 75%.

Front

What is the formula to find the percentage of wins in a game?

Back

The formula is: (Number of Wins / Total Games Played) * 100.

Front

If the Rockets won 16 out of 20 games, what percentage did they win?

Back

(16/20) * 100 = 80%.

Front

How do you determine the total number surveyed if you know the percentage and the number that meets the condition?

Back

Use the formula: Total = Number that meets condition / (Percentage / 100).

Front

If 20% of students like a snack and 60 students like it, how many students were surveyed?

Back

Total surveyed = 60 / (20/100) = 300.

Front

What percentage of people do not buy lunch if 8 out of 10 do?

Back

If 8 buy lunch, then 2 do not. The percentage of those who do not buy lunch is (2/10) * 100 = 20%.

Front

How do you calculate the remaining number of people after a percentage loss?

Back

Subtract the percentage lost from 100% to find the remaining percentage, then multiply by the original number.

Front

If the Mayflower started with 150 passengers and lost 60%, how many remained?

Back

Remaining = 150 * (1 - 0.60) = 150 * 0.40 = 60.