11-ABM REVIEW FOR MIDTERMS

Which of the following is a ratio in simplest form?

• 4:8

• 3:9

• 6:12

• 5:7

How do you solve a proportion with the equation a/b = c/d?

• Multiply a by d and b by c

• Multiply a by c and b by d

• Divide a by d and b by c

• Divide a by c and b by d

If a:b = 2:3, what is b:a?

• 2:3

• 3:2

• 2:2

• 3:3

If 2/5 is the same as 4/10, which of the following ratios is equivalent to 2:5?

• 4:8

• 8:10

• 6:15

• 3:7

If you have 4 red marbles and 6 blue marbles, what is the ratio of red marbles to the total number of marbles?

• 4:6

• 6:4

• 2:5

• 4:10

What is the base in the percentage calculation 20% of 150?

• 20

• 150

• 30

• None of the above

If you want to find 40% of a number, which mathematical operation would you use?

• Addition

• Subtraction

• Multiplilcation

• Divsion

Which of the following represents 75% as a decimal?

• 0.075

• 0.75

• 0.0075

• 7.5

If you earned $500 for working 20 hours, what is your hourly rate?

• $10 per hour

• $25 per hour

• $15 per hour

• $20 per hour

If you scored 85% on a test with 50 questions, how many questions did you answer correctly?

• 35

• 42

• 45

• 47