Unit 3 Review

Front

What is 65% of 100? How many students do not buy lunch if 65% of Rho students at Cosgrove buy lunch?

Back

65% of 100 is 65. Therefore, 100 - 65 = 35 students do not buy lunch.

Front

If a printer prints 28 photos in 8 minutes, how many minutes does it take to print 21 photos?

Back

It takes 6 minutes to print 21 photos.

Front

What fraction is equivalent to 25%?

Back

1/4 is equivalent to 25%.

Front

If Mr. Johnson won $500 and puts 35% into savings, how much is that?

Back

Mr. Johnson will put $175 into his savings account.

Front

If Antonia can type 408 words in 4 minutes, how many words can she type per minute?

Back

Antonia can type 102 words per minute.

Front

What is the formula to find the percentage of a number?

Back

Percentage = (Part/Whole) x 100.

Front

How do you convert a percentage to a fraction?

Back

To convert a percentage to a fraction, divide the percentage by 100 and simplify.

Front

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

Back

Fractions, decimals, and percentages are different ways to represent the same value.

Front

How do you find the total number of students if 35% do not buy lunch?

Back

If 35% do not buy lunch, then 65% do. If 65% = 100 students, then total students = 100/0.65.

Front

What is the process to calculate the time taken to print a certain number of photos?

Back

Use the rate of photos per minute to find the time: Time = Number of Photos / Rate.