Ratios
Proportions
Rational Numbers
Vocabulary
More Vocabulary
100
There is a proportional relationship between the number of hours babysat and the money that is earned. If Megan babysat for 4 hours and was paid $58, how much does Megan earn per hour?
What is $14.50?
100
A student programs a robot to travel at a constant speed across the classroom floor. The table below represents the relationship between the distance, in feet, the robot travels over a period of time, in seconds.
Write an equation to represent the distance, d, in feet, the robot travels in t seconds.
What is d=1/2t?
100
Joel has three buckets which contain different amounts of liquid. The amount of liquid in each bucket is listed below.
7 1/2 liters
5 3/4 liters
6 3/4 liters
Joel mixes all the liquid together. Then he pours all the liquid equally into 5 containers. How many liters of liquid does Joel pour into each container?
What is 4 liters?
100
The number that is multiplied by the variable in an algebraic expression.
What is the coefficient?
100
The set of whole numbers and their opposites
What are integers?
200
What is the constant of proportionality between x and y?
What is 1.50
200
The cost for 10 ounces of organic blueberries is $2.70. Which equation can be used to determine x, the cost, in dollars, for 30 ounces of organic blueberries?
What is 10/2.70=30/x ?
200
A student has a bus pass with a balance of $30.00. Each time the student rides the bus, the balance on the bus pass decreases by $2.25. What is the greatest number of bus rides the student can take using the bus pass?
What is 13?
200
A constant ratio of two variables related proportionally.
What is constant of proportionality?
200
The middle number, or the mean of the two middle numbers in an ordered set of data.
What is the median?
300
The equation y=6.7x can be used to determine the cost of x pounds of candy at the store. If y is the cost in dollars, and x is the pounds of candy, what does the number 6.7 represent?
What is the cost per pound of candy?
300
At a grocery store, the price of a watermelon is determined by how many pounds the watermelon weighs. The price of a watermelon that weighs 7.3 pounds is $4.38.
Write an equation that can be used to determine the price, p, in dollars, of any watermelon based on the number of pounds, w, the watermelon weighs.
What is p=0.6w?
300
Kasey and Andrew each went for a walk, once a day, for 4 days.
- Kasey walked 3/4 mile each day.
- Andrew walked 3/5 mile each day.
At the end of 4 days, how much farther, in miles, had Kasey walked than Andrew?
What is 0.6 miles?
300
Having the same value
What is equivalent?
300
A number that can be represented as a fraction of two integers with a non-zero denominator.
What is rational number?
400
The graph shows a proportional relationship between the distance in miles that a probe travels in hours. How many miles does the probe travel in 5.5 hours?
What is 66,000?
400
The table shown above represents a proportional relationship between x and y.
Write an equation that represents this proportional relationship.
What is y=1/4x?
400
A gardener uses a total of 61.5 gallons of gasoline in one month. Of the total amount of gasoline, 3/5 was used in his lawn mowers. How many gallons of gasoline did the gardener use in his lawn mowers in the one month?
What is 36.9?
400
A mathematical phrase that contains operations, numbers, and or variables.
What is an expression?
400
The sum of the items in a set of data divided by the number of items in the set (also known as the average)
What is the mean?
500
A convenience store sells two brands of orange juice. Brand A contains 8 fluid ounces and costs $1.28. Brand B contains 12 fluid ounces and costs $1.68.
What is the difference in cost, in dollars, per fluid ounce between the two brands of juice?
What is 0.2?
500
Marty types at an average rate of 25 words per minute. Write an equation that could be used to determine the average number of words, w, Marty types in t minutes.
What is w=25t?
500
Marcy is buying prizes to give away at a fundraiser, as described below.
- She has $250.00 to spend.
- She buys 13 movie passes for $9.50 each.
- She buys 3 gift cards valued at $25.00 each.
- She will use the rest of the money to buy candy bars that cost $1.75 each.
What is the greatest number of candy bars she can buy with the rest of the money?
What is 29?
500
A mathematical sentence that shows that two expressions are equivalent.
What is an equation?
500
A number from 0 to 1 (or 0% to 100%) that describes how likely an event is to occur.
What is probability?