unit rates
tables
equations
word problems
Random
100
10 inches of rain in 5 hours
2 inches of rain/hour
100
Proportional
k=12
100
there are 3 cups that hold 9 oz of juice.
write an equation for how many oz per cup
y=3x
100
in 25 minutes Lee can run 10 laps around the track. determine the number of laps he can run per minute.
a. determine the constant of proportionality
b. write an equation.
k=0.4 laps/ minute
y=0.4x
x=minutes
y=laps
100
proportional
k=5
200
45 tickets sold in 3 hours
15 tickets/hour
200
proportional
k=2
200
this equation represents the number of miles driven to the number of gallons of gas.
y=28x
x=gallons
y=miles driven
how far could I drive if I has 22 gallons of gas
I could drive 616 miles
200
grandmas special cookie recipe which makes 4 dozens of cookies calls for 3 cups of flour. using this information create a chart comparing the amount of flour to the amount of cookies. is this proportional?
flour 3 6 9 12
cookies 4 8 12 16
Proportional
200
nonproportional
300
262 miles in 4 hours
65.5 miles/hour
300
non-proportional
300
this equation represents the number of miles driven to the number of gallons of gas.
y=28x
x=gallons
y=miles driven
if I take a trip of 600 miles, how many gallons of gas would I need to make the trip?
I would need 21 3/7 or 21.43 gallons of gas for a 600 mile trip
300
75 basketballs cost $1,143.75. Find the cost of 26 basketballs.
y=15.25x
y=396.50
300
nonproportional
400
$9.80 for 14 oranges
$.70 per orange
400
proportional
k=2
400
suppose the cost to rent a car is $37.50 for 5 hours
what would be the cost to rent a car for 3 hours
it would cost $22.50 to rent a car for 3 hours
400
kyle and josh have new jobs this summer. kyle will be paid $12/hour and josh will be paid $10/hour. they were told after every 2 years they will be give a raise of $5 per hour. is the relationship between kyle's pay and josh's pay proportional?
explain using a table
kyle 12 17 22 27 32
josh 10 15 20 25 30
nonproportional
400
y is directly proportional to x. Given that y = 144 and x = 12. Find the value of y when x = 7.
y=kx
y=84
500
the scientists found that there were 144 deer in a 16 square mile area of the forest.
9 deer per square mile
500
nonproportional
500
a. find the constant of proportionality
b. write an equation
c. how long will it take to earn $450?
k=50
y=kx
x=time
y=cost
450=50x
x=9 hours
500
a recipe for cupcakes uses a ratio of mix to milk 5:2 cups. complete the table to show different amounts that are proportional
mix 5 10 15 20 25
milk 2 4 6 8 10
How could we check our answer?
500
what is the constant of proportionality
what does the point (15,18) represent in this problem?
k=1.2
15 hours hike 18 miles