Percent Proportion Review

Front

What is the formula to calculate the percent of a number?

Back

To calculate the percent of a number, use the formula: (Part/Whole) x 100 = Percent.

Front

How do you find the whole when given a part and a percent?

Back

To find the whole, use the formula: Whole = Part / (Percent/100).

Tags

CCSS.6.RP.A.3C

Front

What does it mean if 40% of a number is 20?

Back

It means that 20 is 40% of the total number, which can be calculated using the formula: Total = Part / (Percent/100).

Tags

CCSS.6.RP.A.3C

Front

If a class has 50 students and 40% take the bus, how many do not take the bus?

Back

To find the number of students who do not take the bus, first calculate 40% of 50 (which is 20), then subtract from the total: 50 - 20 = 30.

Tags

CCSS.6.RP.A.3C

Front

What is the relationship between fractions and percentages?

Back

Fractions can be converted to percentages by multiplying by 100. For example, 1/2 = 0.5 = 50%.

Front

How do you calculate the percentage of seats that are empty in a theater?

Back

To calculate the percentage of empty seats, use the formula: (Empty Seats / Total Seats) x 100.

Front

What is 45% of 50?

Back

To find 45% of 50, multiply 50 by 0.45: 50 x 0.45 = 22.5.

Tags

CCSS.6.RP.A.3C

Front

If a student answers 80% of 20 problems correctly, how do you find the number of correct answers?

Back

To find the number of correct answers, multiply the total problems by the percentage: 20 x 0.80 = 16.

Tags

CCSS.6.RP.A.3C

Front

What does it mean if 10% of seats are empty in a theater with 250 seats?

Back

It means that 10% of 250 seats are not sold, which is calculated as: 250 x 0.10 = 25 empty seats.

Tags

CCSS.6.RP.A.3C

Front

How can you express a percentage as a decimal?

Back

To express a percentage as a decimal, divide by 100. For example, 25% = 25/100 = 0.25.