Proportions
Authored by Anthony Clark
Mathematics
8th Grade
CCSS covered
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20 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Tammy uses x-many liters of water and y-many scoops of sugar to make various amounts of lemonade.
x (liters)|y (scoops)
4L|16scoops
5L|20scoops
7L|28scoops
8L|32scoops
Do x and y have a proportional relationship? If so, what is the constant of proportionality? [___] scoops per liter
no
yes, 16
yes, 12
yes, 4
yes, lemonade
Tags
CCSS.7.RP.A.2A
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Lila likes to make lemonade using the lemons from her grandmother's trees. The graph shows the proportional relationship between the number of pitchers of lemonade Lila wants to make, x, and the number of lemons she needs, y. What does the point D represent?
She needs 14 lemons to make 70 pitchers of lemonade
She needs 70 lemons to make 14 pitchers of lemonade
She needs 14 pitchers and 70 scoops of sugar
She needs 70 pitchers and 14 scoops of sugar
D doesn't represent anything. It's just a dot on a line.
Tags
CCSS.7.RP.A.2D
3.
FILL IN THE BLANK QUESTION
1 min • 2 pts
Max is finding the perimeter of different-sized equilateral triangles. He discovers that there is a proportional relationship between the side length of the equilateral triangle in feet, x, and the perimeter of the equilateral triangle in feet, y. One triangle has a perimeter of 24 feet. What is it's side length in feet?
Tags
CCSS.7.RP.A.3
4.
FILL IN THE BLANK QUESTION
1 min • 2 pts
Sam draws a rectangle with a width of 7 feet, and a height of 18 feet. He then draws a second rectangle that is similar to the first, scaled up by a factor of 3. What is the area of the second rectangle?
Tags
CCSS.7.G.A.1
5.
MULTIPLE CHOICE QUESTION
1 min • 15 pts
4
6
8
10
Tags
CCSS.7.RP.A.2B
6.
MULTIPLE CHOICE QUESTION
1 min • 15 pts
If the ratio of boys to girls in a class is 3:4, how many boys are there if there are 20 girls?
15
25
10
30
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the constant of proportionality?
$3
$4
$2
$9
Tags
CCSS.7.RP.A.2B
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