Percents and Constant of Proportionality
Authored by Barbara White
Mathematics
7th Grade
CCSS covered
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Vocabulary How does a percent relate to a proportion? Drag the words to complete the explanation.
Each word may be used once or not at all.
A percent is a ________ of proportionality describing the ______
of the ________.
A percent is a constant of proportionality describing the part of the whole.
A percent is a variable of proportionality describing the whole of the part.
A percent is a constant of proportionality describing the whole of the part.
A percent is a variable of proportionality describing the part of the whole.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sewing patterns recommend buying extra fabric in case of mistakes. Jessica bought 6 yards of fabric, plus 20% extra fabric.
Derek bought 4 yards of fabric, plus 25% extra. Who bought more fabric? How much more?
Jessica, 2 1/5
Jessica, 2
Derek, 2 1/5
Derek, 4
Tags
CCSS.6.RP.A.3C
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Lou and Jacob each sold 150 pieces of jewelry. If 20% of Lou’s sales were rings, and Jacob sold 25 rings, who sold more rings? How many more?
Lou sold more rings. He sold 100 more rings than Jacob.
Jacob sold more rings. He sold 5 more rings than Jacob.
Lou sold more rings. He sold 5 more rings than Jacob.
Jacob sold more rings. He sold 15 more rings than Lou.
Tags
CCSS.6.RP.A.3C
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
List the correct answers in order with the percentage symbol!
80%, 5%, 33.3%, 15%
80%, 95%, 33.3%, 15%
.8, .5, .333, .15
80% 95% 33% 15%
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Rabbit Population
The rabbit population in a certain area is 200% of last year's population. There are 900 rabbits this year. How many were there last year?
1800 rabbits
450 rabbits
0.22 rabbits
200 rabbits
Tags
CCSS.6.RP.A.3C
6.
FILL IN THE BLANKS QUESTION
1 min • 1 pt
A company that makes hair-care products had 8,000 people try a new shampoo. Of the 8,000 people, 12 had a mild allergic reaction. What percent of the people had a mild allergic reaction?
(a)
7.
FILL IN THE BLANKS QUESTION
1 min • 1 pt
In a survey of 2,500 people who owned a certain type of car, 1,520 said they would buy that type of car again. What percent of the people surveyed were satisfied with the car?
(a)
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