The following have proportionality, true or false?
15/20 and 20/21
2/3 and 64/90
What is false?
100
A truck driver drives from
Chicago to Cincinnati in 14 hours.
The distance traveled in 840 miles.
Write the average speed as a unit
rate in fraction form.
What is 60/1?
100
The definition of a ratio.
What is a fraction that compares two things with similar units?
100
The scale on a road map is 1 centimater = 500 miles. If the distance on the map between New York City and Memphis is 2.2 centimeters, this is the actual distance between the two cities.
What is 1,100 miles?
200
The following are proportional, true or false.
16/32 and 4/8
21/14 and 18/12
What is true?
200
Matt has 6 video racing games
and 8 video sports games.
Which ratio is the ratio of
racing games to total video
games in simplest form?
What is 3/4?
200
The definition of a rate.
What is a ratio that compares two things with different units (circles/squares, miles/time)?
200
For a school project, Lee Ann is making a model of the Empire State Building. She is using a scale of 1 centimeter = 8 feet. The Empire State Building is 1,252 feet tall and this is how tall the model is.
What is 156.5 centimeters?
300
Cross multiply to solve for x:
16/11 = 96/x
What is x = 66?
300
Last year Yeh grew 4 inches
in 8 months. How much did she
grow per month?
½ inch 4 inches
1 inch 2 inches
What is 1/2 inch?
300
The definition of a unit rate.
What is a rate that has a denominator of 1, creating a per unit rate. (miles per hour, distance per inch)
300
A model of the Eiffel Tower that was purchased in a gift shop is 29.9 inches talll. The actual height of the Eiffel Tower is 985 feet, or 11,820 inches. This is the scale factor used to make the model.
What is 12 inches to 1 foot?
400
Cross multiply to solve for b:
B/1.5 = 8/3
What is b = 4?
400
What is 20 pounds per 5
gallons as a unit rate?
What is 4/1?
400
The definition of proportional.
What is when two rates can be simplified to the same ratio, or their cross products are equal?
400
The scale factor for Maria's dollhouse furniture is 1:8. If the sofa in Maria's dollhouse is 7 1/2 inches long, the actual sofa is this long.
What is 60 inches?
500
Cross multiply to solve for a:
2/a = 5/15
What is a = 6?
500
For every 300 people surveyed in
2002, 186 said their favorite winter
Sport was figure skating. Write this
ratio in simplest form three ways.
What is 50/31, 50 to 31 and 50:31?
500
The definition of a scale factor.
What is the unit rate used when creating scale drawings or scale models?
500
The Painted Desert is a high plateau extending 150 miles in northern Arizona. On a map, the length of this desert is 5 centimeters, which means the scale factor of the map is this.