Ratios
What are the two symbols that represent ratios?
A colon (:) and a fraction line (/)
The value of a dime is 10 percent of a dollar.
True
What is one way to find percentages?
What number is in the hundreths place? 47.39
9 (0.09)
What does it mean when things are equivalent?
They are the same/ have the same value.
What is an equivalent ratio?
When two ratios have the same value.
Is this a statistical question?
Which football game had the most touchdowns this season?
No. (False)
Which U.S. coin is worth 25% of a dollar?
A quarter (25 cents)
Convert 37 centimeters (cm) to meters (m)
0.37 meters
What is statistical variability?
Different ways to showcase statistics. For example, percents, ratios, fractions, and decimals.
What is an equivalent ratio of 4:5?
8:10, 16:20, 40:50, etc.
25% of 512 is equal to ¼ x 500
False (512 does not equal 500)
If a woman making $25 an hour gets a 10% raise, how much is she making per hour now?
$27.50 ($2.50 raise)
5x + 6 = 21 is equal to mx + b = y. What does the 6 represent?
b
100
A recipe has a ratio of 3 cups of flour to 4 cups of sugar. How much flour is needed for 1 cup of sugar?
3/4 cups of flour
The percentage 21 of 28 is equal to the percentage 30 of 40
True (their values are the same)
How do I turn 15/25 into a decimal? What percent is that?
Divide 15/25. 0.6 turns into 60%.
Convert 3 meters (m) to centimeters (cm)
300 centimeters
What are "like" measurements?
There are 14 blocks on the table. 6 red blocks, 4 green blocks, 3 yellow blocks, and 1 blue block. Using statistical language, what is one ratio you can get from these blocks?
(Multiple answers) EX: 6 red blocks to 3 yellow blocks.
83.2 converted to expanded notation is 8x10 + 3x1 + 2x0.1
True
A restaurant has a sign by the front door that says, “Maximum occupancy: 75 people.”
What percentage of its capacity is 51 people?
51/75 = 68%
Clare buys an item with a normal price of $24, but saves $6 by using a coupon. For what percentage off is this coupon?
25% (% = 6/24 x 100)
What does quantitative mean?
of, relating to, or expressible in terms of quantity. Geometry language.