6.1-6.4 Review

Front

What is 110% of $801.50?

Back

$880

Front

If 200 children attended a school play and 40% were boys, how many girls attended?

Back

120 girls attended the school play.

Front

In a molecule of ammonia (NH3), what percent of the atoms are hydrogen?

Back

75% of the atoms are hydrogen.

Front

Convert 13½% to a fraction in simplest form.

Back

27/200

Front

If 16 is 25% of a number, what is that number?

Back

64

Front

What is the formula to calculate percentage?

Back

Percentage = (Part/Whole) × 100

Front

How do you convert a percentage to a decimal?

Back

Divide the percentage by 100.

Front

What is the relationship between fractions and percentages?

Back

A percentage is a fraction out of 100.

Front

What is 40% of 150?

Back

60

Front

How do you find 10% of a number?

Back

Divide the number by 10.