Finding the Unknown with Percents

50% of what number = 49

• .98

• 98

• .01

• 1.02

What is 40% of 250?

• 200

• 100

• 60

• 150

A student scored 85% on a test with 120 questions. How many questions did the student answer correctly?

• 110

• 102

• 100

• 90

Mr. Aguirre rented an apartment. The security deposit was 40% of one month's rent. If the security deposit was $200, how much money does one month's rent cost?

• $800

• $400

• $500

• $700

What is 30% of 150?

• 45

• 50

• 55

• 60

45 is 25% of what number?

What is 30% of 80?

Mathematical Equivalence

ON

What is 30% of 50?

Mathematical Equivalence

ON

What is 90% of 250?

Mathematical Equivalence

ON

What is 125% of 84 ?

Mathematical Equivalence

ON