Determine the unknown value

64 miles
The table shows the number of bananas to make muffins. Is the relationship proportional? If so, find the constant of proportionality.

Proportional. 1/4
The number of tiles Zoey needs to put on the wall to make a backsplash is shown in the table. Graph and determine if the relationship is proportional.


Proportional
The cost of gasoline is represented by the equation y = 2.35x, where y represents the total cost of gas and x represents the number of gallons purchased.
How much does one gallon of gasoline cost?
$2.35
A printer can print 180 pages in 10 minutes. How many pages can it print in 1 hour?
1080 pages
A cornbread recipe calls for 1.5 cups of cornmeal for every cup of flour used. If 6 cups of cornmeal are used, how many cups of flour will be needed?
4 cups of flour
The table shows the amount of sugar in apples. Is the relationship proportional? If so, find the constant of proportionality.

Proportional. 19
The table shows the cost to make cans of sports drink. Graph and identify if the relationship is proportional.


Nonproportional
The total amount of money Faith earns babysitting can be represented by the equation y = 12.50x, where y is the total amount earned and x is the number of hours Faith spent babysitting.
How much does Faith earn for 9 hours of babysitting?
$112.50
A teacher spends one-third of the time in class helping students. If a teacher is in class 24 hours a week, how many minutes does the teacher help students?
480 minutes
Determine the unknown term

32 cabinet doors
Misty is buying shirts for her doll that cost $5 for every 3. Fill the table. Does it represent a proportional relationship?


Proportional
Luis starts with $20 in his piggy bank. After 3 weeks, he has $50 in his piggy bank. Graph the relationship. Is it proportional?


Nonproportional
y = 11x
A photographer spends 75% of his time taking photos. If the photographer works 36 hours in a week, how many minutes does the photographer spend taking photos?
1620 minutes
Kaylee uses her last 2.25 rolls of wallpaper to cover 135 square feet of wall space in a room. How many more rolls of wallpaper are needed to cover all 900 square feet of wall space in the room?
15 rolls
Fun Center rents out popcorn machines for $20 per hour. Students are in school from 8:00 am to 3:00 pm. How much will it cost to rent the machine for the entire school day?


$140
Mr. Hamilton installs appliances. For a job that takes him 4 hours, the cost is $200. Graph the relationship. What would (0, 0) represent?


(0, 0) represents $0 for 0 hours
It costs a zoo $8 to feed the koalas for 4 hours. Write an equation relating the total cost y to the number of hours x
y = 2x
On a trip, an RV travels at an average speed of 50 mph. The gas tank holds 25 gallons of gas. How long will it take for the RV to run out of gas if it travels 15 miles in one gallon of gas?
About 7.5 hours
A band sells 245 tickets in 5 days. If the sales continue at this rate, how many tickets will they sell in 2 weeks?
686 tickets
Jean deposits $60 in her account every other week. Assuming she does not withdraw any money from her account, how much will she have in her account after 24 weeks?


$720
Graph and identify if the relationship is proportional.


Proportional
Brayden bought a helium tank for $24. It will blow up 30 balloons. How much will someone spend on helium if they want to blow up 150 balloons?
$120
A warehouse robot can pick 420 items off the warehouse shelves in one hour. How many minutes will it take for the robot to pick 140 items?
20 minutes