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Rates & unit rates
Ratios
Proportions
Similar figures & indirect measurement
Scale drawings
100
An example of a rate is 20 mph. "Mph" stands for what?
What is miles per hour?
100
Write as a ratio in lowest terms: 20 red balloons to 15 blue balloons.
What is 4:3?
100
Is this a proportion? 2/3 = 30/40
What is no?
100
In order for two shapes to be similar, their angles must be _________ .
What is congruent?
100
If the scale factor between two shapes is < 1, then is it a reduction or an enlargement?
What is a reduction?
200
A rate is a ratio with different ________s.
What is units?
200
Write the ratio in lowest terms: 28 cents to 42 cents
What is 2:3?
200
Is this a proportion? 15/4 = 60/16
What is yes?
200
In order for two shapes to be similar, the lengths of their sides must be _________ .
What is proportional?
200
A model car is 5 inches long, and has a scale factor of 1:12. How long is the real-life car?
What is 60 inches? (Or 5 feet)
300
Find the unit rate. $1500 for 5 hours of work
What is $300/hour?
300
Write as a ratio in lowest terms: 1 foot to 1 yard
What is 1:3?
300
Solve the proportion: x / 26 = 4 / 13
What is 8?
300
A small rectangle has a length of 4 and a width of 5. A similar rectangle has a length of 10. What is its width?
What is 12.5?
300
On a map, 1 cm represents 12 miles. Two cities are 8 cm apart. How far apart are they in real life?
What is 96 miles?
400
Find the unit price: $10.00 for 20 ounces
What is $.50/ounce?
400
Write the ratio in lowest terms: 48 cents to 104 cents
What is 6 to 13?
400
Solve the proportion: 5 / x = 12 / 6
What is 2.5?
400
A 100-ft high building casts a shadow of 20 feet. A nearby tree's shadow is 3 feet. How tall must the tree be?
What is 15 feet?
400
The blueprint of a house has a scale factor of 2 inches : 3 feet. If the living room on the blueprint is 5.5 inches wide, how wide is the actual room?
What is 8.25 feet?
500
Which is the better deal? $12 for 8 cupcakes, or $24 for 15 cupcakes?
What is $12 for 8 cupcakes?
500
Write the ratio in lowest terms: 102 boy monkeys to 78 girl monkeys
What is 17:13?
500
One room has 120 people, 90 of whom are men. Another room has 200 people. If the two rooms are proportional, how many men are in the second room?
What is 150?
500
A 5' tall person has a shadow of 6 feet. A flagpole's shadow is 21 feet. How tall is the flagpole?
What is 17.5 feet?
500
On a map, the length of a nature-center trail is 10.9 cm. If the scale is 3 cm : 10 km, what is the actual length of the trail?
What is 36.33 km?