Practice Problems
What is a constant of proportionality?
The number two ratios increase or decrease by (or unit rate)
Equivalent ratios are
Two ratios that have the same value
What is a unit price?
The cost of an individual item.
What is the formula for finding volume?
L x W x H
Alexis glued what on her nail the other day?
A plastic cup.
Select all the ratios that are equivalent to each other:
A. 4:7
B. 8:15
C. 16: 28
D. 2:3
E. 20:35
A, C, E
A recipe calls for 3 cups of flours, 4 cups of chocolate chips, and 2 cups of milk.
What would the ratios be if you were to cut the recipe in half?
1 1/2 cups of flour, 2 cups of chocolate chips, and 1 cup of milk.
What is a unit rate?
How much of something per 1 unit of something else.
What is a sum?
The solution to a mathematical question
Who was our first imposter?
Wyatt
A map of a rectangular park has a length of 4 inches and a width of 6 inches. It uses a scale of 1 inch for every 30 miles.
What is the actual area of the park?
21,600 square miles.
To find equivalent ratios you...
Divide or multiply both ratios by the same number.
Amy drove to her mother’s house, which is 204 miles away. If it took her 3 hours, what was her average speed?
68mph
What is an exponent?
The number of times a number has been multiplied by itself.
Which Among Us character is Luc's favorite?
Pink
A certain shade of pink is created by adding 3 cups of red paint to 7 cups of white paint.
1. 3/7 cups of red paint
2. 3/7 is the constant of proportionality
In one version of a trail mix, there are 3 cups of peanuts mixed with 2 cups of raisins. In another version of trail mix, there are 4.5 cups of peanuts mixed with 3 cups of raisins. Are the ratios equivalent for the two mixes?
Yes, since 3 times 1.5 is 4.5 and 2 times 1.5 is 3.
What’s the unit price?
You can buy 40 burritos for 60 dollars
$1.50 per burrito
Solve the equation:
1 /10 times 65
6.5
Who finished their silent reading book first?
Alexis and Madison
The area of the Mojave desert is 25,000 square miles. A scale drawing of the Mojave desert has an area of 10 square inches. What is the scale of the map?
1 inch to 50 miles
The ratio of the number of adults to the number of children at a certain movie was 6 to 22. If there were 55 children at the movie, how many adults were there?
15
A house painter is paid $15 hour for an 8 hour workday. For any time in excess of 8 hours during one day, the painter is paid the regular rate plus an additional $10 per hour for the extra hours. How much would she make for working 10 hours?
$140
43 equals
64
What are the names of Mrs. W.T.'s dogs (all three)?
Guinevere, Hermione, and Gawain