Population Growth and Decay Word Problems
Authored by Barbara White
Mathematics
9th - 12th Grade
CCSS covered
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11 questions
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1.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
North Dakota has recently had the fastest growing population out of all 50 states. On Jan 1, 2013, the population of North Dakota was 700,000 people. North Dakota’s population has been growing by 5% per year. Express North Dakota’s population, N, in terms of years since 2013, t.
Check the BEST answer:
N=700,000(1.05)t
N=700,000(1.5)t
N=700,000(1-0.05)t
N=700,000(0.95)t
Tags
CCSS.HSF.LE.A.2
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
An air freshener starts with 30 grams of fluid, and the amount of fluid decreases by 12% per day. Express the amount of grams of freshener, Q, that remains, t, days after it has begun being used.
Check the BEST answer: (HINT: that means simplify what is in the parenthesis)
Q=30(1+0.12)t
Q=30(1-0.12)t
Q=30(0.88)t
Q=12(1.30)t
Tags
CCSS.HSF.LE.A.2
3.
FILL IN THE BLANK QUESTION
2 mins • 1 pt
P = 8(1.23)t
What is the initial quantity?
Tags
CCSS.HSF.LE.B.5
4.
FILL IN THE BLANK QUESTION
2 mins • 1 pt
P = 8(1.23)t
What is the growth rate?
Write as a percent!
Tags
CCSS.HSF-IF.C.8B
5.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
P = 8(1.23)t
Is the function growth or decay?
Check the box:
Growth
Decay
Tags
CCSS.HSF-IF.C.8B
6.
FILL IN THE BLANK QUESTION
2 mins • 1 pt
Q = 3.1(0.78)t
What is the initial quantity?
Tags
CCSS.HSF-IF.C.8B
7.
FILL IN THE BLANK QUESTION
2 mins • 1 pt
Q = 3.1(0.78)t
What is the DECAY rate?
Write as a percent!
CAREFUL!!!
Tags
CCSS.HSF-IF.C.8B
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