Percent Change Functions
Quiz
•
Mathematics
•
7th Grade
•
Practice Problem
•
Hard
+3
Standards-aligned
Anthony Clark
FREE Resource
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20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A shoe sales associate earned $300 in August. In September she earned 8% more than she did in August. How much did she earn in September?
$308
$324
$200
$380
Tags
CCSS.6.RP.A.3C
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following functions shows an initial amount of $15 and an increase of 35% each year?
y = 15(35)x
y = 15(1.35)x
y = 15(0.35)x
y = 35(1.15)x
Tags
CCSS.HSF.LE.A.2
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The expression 12(1.02)t models the population of elephants in a wildlife refuge after t years since 1975.
What does the value 1.02 represent?
The number of elephants was 102 in 1975.
The number of elephants increases by 2% each year.
The number of elephants increases by 102% each year.
Two extra elephants join the population each year
Tags
CCSS.HSF.LE.B.5
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Suppose a culture of bacteria begins with 5000 cells and dies by 30% each year. Write an equation that represents this situation.
y=5000(1 - 0.30)x
y=30(5000)x
y=5000(1 + 0.30)x
y=5000xx
Tags
CCSS.HSF.LE.A.2
5.
DROPDOWN QUESTION
1 min • 1 pt
When finding percent change you must first (a) the new number from the (b) number to find the amount of change.
subtract
original
add
percent
Tags
CCSS.6.RP.A.3C
6.
LABELLING QUESTION
1 min • 1 pt
Drag and drop the correct labels for this Percent change model.
change
100
New Amount
original
percent
50
Tags
CCSS.6.RP.A.3C
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the percent change when a quantity increases from 100 to 150?
25%
50%
75%
100%
Tags
CCSS.6.RP.A.3C
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