It will have the same multiplier for every pair of values. (constant of proportionality)
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10
What is the cost of six filters if eight filters cost $39.92?
$29.94
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10
Jasmine is building bird houses. It takes 4 1/2 hours to build 4 hours. How many birdhouses could she build in 1 hour?
1 1/8 or 1.125
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10
Is this a proportional relationship? If so, find the constant of proportionality and write an equation.
No, the line does not go through the origin which means the ratios are not equivalent.
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10
If one gallon of paint covers 825 sq. ft., how much paint is needed to cover 2640 sq. ft.?
3.2 gallons
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10
You jog 3.6 miles in 30 minutes. At that rate, how far will you run in 20 minutes?
2.4 miles
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banana
Go to last place!
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gold
Win 50 points!
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rocket
Go to first place!
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baam
Lose 10 points!
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10
You earn $33 in 8 hours. At that rate, how much would you earn in 5 hours?
$20.63 (20.625)
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banana
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gold
Win 50 points!
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gift
Win 10 points!
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banana
Go to last place!
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10
A chef filled up 3 containers with mashed potatoes. He ended up using 2 1/4 pounds of potatoes. Find the the amount of containers the chef will fill with 1 pound of mashed potatoes.
12/9, 4/3, 1 3/9, or 1 1/3 containers
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10
How can I tell if an equation is proportional?
It will be in the form y=kx where k is the constant of proportionality.
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10
What is a constant of proportionailty?
The unit rate of a proportional relationship
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10
Is this a proportional relationship? Why or why not? If so, find the constant of proportionality and write an equation.
No, the line does not go through the origin so the ratios are not equivalent.
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trap
No points!
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seesaw
Swap points!
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fairy
Take points!
5
10
15
20
25
lifesaver
Give 20 points!
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10
Is this a proportional relationship? If so, find the constant of proportionality and write an equation.
Yes, the constant of proportionality is 0.4. y=0.4x
