Unit Rates
A baker uses 6 cups of sugar for 12 batches of cookies. How much sugar is used per batch?
Answer: 1/2 cup
Find the median:
2, 4, 6, 8, 10
Answer: 6
Probability of heads = 0.5
Flip a coin 40 times.
How many heads should you expect?
Answer: 20
4 1/2 + 2 1/2
Answer: 7
Convert 0.085 to a percentage.
Answer: 8.5%
A chef uses 7 1/2 cups of flour for 15 loaves of bread. How much flour per loaf?
Answer: 1/2 cup
Find the median:
3, 5, 7, 9, 11, 13
Answer: 8
Probability of red = 0.2
Spin 100 times.
Expected reds?
Answer: 20
8 1/2 ÷ 2 1/8
Answer: 4
Continue the pattern:
244, 226, 208, 190, ___
Answer: 172
A baker uses 5 1/4 cups of sugar for 7 batches. How much sugar per batch?
Answer: 3/4 cup
Find Q1:
2, 4, 6, 8, 10, 12, 14, 16
Answer: 5
A jar contains 8 yellow, 4 blue, and 8 red marbles.
What is P(not blue)?
Answer: 16/20 = 4/5
7 1/2 + 3 3/4
Answer: 11 1/4
Factor:
18x + 6
Answer: 6(3x + 1)
A gardener uses 8 2/3 gallons of water for 13 flower beds. How much water per bed?
Answer: 2/3 gallon
Find the median, Q1, and Q3:
3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25
Answer: Median = 14, Q1 = 8, Q3 = 20
A bag contains 5 green, 7 red, and 8 yellow marbles.
What is P(red or yellow)?
Answer: 15/20 = 3/4
11 1/2 ÷ 2 7/8
Answer: 4
Find the volume of a box:
20 × 30 × 16
Answer: 9,600 in³
A machine produces 14 1/4 yards of fabric in 19 minutes. How many yards per minute?
Answer: 3/4 yard
Find the median, Q1, and Q3:
2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32
Answer: Median = 17, Q1 = 9, Q3 = 25
A spinner has 24 equal sections. Three sections are labeled 4.
What is the probability of spinning a 4? If spun 400 times, about how many times would you expect a 4?
Answer: 3/24 = 1/8, Expected = 50
14 2/3 ÷ 3 1/6
Answer: 4 12/19
Find the volume of a fish tank:
18 × 24 × 12
Answer: 5,184 in³