Vocabulary
Two equivalent ratios
What is a proportion?
If I have four stripped circles, 2 triangles, and two white circles. How many white circles to all shapes do I have?
What is 2 to 8
How much can Julian run in an hour. If he can run 35 miles in 5 hours
What is 6 miles per hour
There are 8 cups of sugar for 40 cookies. How many cups of sugar do I need for 20 cookies.
What is 4 cups of sugar?
Alan’s car drove 100 miles in 50 minutes and Sally’s car drove 56 miles in 14 minutes. Who drove the fastest in a minute?
Who is Sally. She drove 4 miles in 1 minute and Alan drove 2 miles in 1 minute.
A ratio that compares two different units
What is a rate?
A soccer team played 28 games and won 4 out of every 7 games. There were no tied games. How many games did they lose?
What is 12 games lost?
If Natalia saved $42 in 7 days, How much does she save per day?
What is $6 a day
Will spent $6 downloading 5 songs to his iPhone. At this rate, how many songs could he download for $12?
What is 10 songs?
A golden rectangle has a length to width ratio called the golden ratio, which is approximately 1.62.
If the width of a golden rectangle is 6.4 m, what is the length? Give your answer to the nearest tenth of a metre.
A comparison of two numbers (quantities)
What is a ratio?
A pet store has 5 cats, 7 dogs, 3 rabbits, and 5 birds. What does the ratio 1/4 compare?
What is cats to all animals in simplest form.
Trevor rode his mountain bike 98 km in 3.5 hours. Jillian rode 75 km in 2.5 hours. Who is the faster cyclist?
Who is Jillian?
The ratio of red tiles to black tiles is 4 to 6. If 24 red tiles were used to complete the project how many black tiles were used?
What is 36 black tiles
Mark estimates frogs eat six insects per hour. Assume a frog rests for 8 hours each day and doesn't eat while resting. How many insects would the frog eat in August?
What is 2976 insects?
If two ratios have the same value when smplified, then they are called....
What is equivalent ratios?
The ratio of the width to the length of thee Canadian flag is 1:2.
The flag on the cover of an atlas is 12 cm wide. How long is it?
What is 24 cm?
Chad went to the bank to get some U.S. dollars for a trip to the Grand Canyon. He paid $500 CAD and received $361.21 USD. What was the conversion rate for exchanging Canadian dollars to U.S dollars? Give your answer to four decimal places.
What is 0.7224?
A breakfast cereal contains corn, wheat, and rice in the ratio of 3 to 4 to 2. If a box of cereal contains 225 g of corn, how much rice does it contain?
What is 150 g of rice?
Two circles have radii with a ratio of 1 to 2. What is the ratio of their circumferences?
What is 1 to 2?
There are 48 passengers on a transit bus. At the next stop, 16 passengers got off and 12 others got on the bus. What is the ratio of the passengers who got on the bus at the stop compared to the new total then on the bus? Express your answer as a percent.
What is 27%?
Express 60 km/h in meters per second to the nearest hundredth.
What is 16.67 m/s?
The height of an object compared to the length of its shadow is constant for all objects at any given time. If a 15m tree casts a 9m shadow, what is the height of a student who casts a 1.08 m shadow?
What is 1.8 m tall?
If a:b = 4:5, find the ratio of 5a:7b.
What is 20 : 35? (or 4:7 if simplified)