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Worksheetsexponential growth
Total questions: 25
Worksheet time: 54mins
Middletown High School has student elections every year. Lately, the school has seen a 5% decrease in voting from election to election. If 910 students voted this year, how many will be expected to vote 8 years from now? (Round to the nearest whole number if necessary).
604
777
29
198
More and more people are purchasing food from farmers' markets. As a consequence, a market researcher predicts that the number of farmers' markets will increase by 15% each year. If there are 6,200 farmers' markets this year, how many will there be in 10 years? (Round to the nearest whole number if necessary).
25,082
12,937
62,000
43,511
A publishing industry report predicts that magazine subscriptions will drop by 10% each year. If this prediction is correct, then how many subscribers will a magazine with 98,000 subscribers have in 10 years? (Round to the nearest whole number if necessary).
34,170
16,348
7690
76,023
Jenny has $20 in a savings account. The interest rate is 5%, compounded annually. To the nearest cent, how much interest will she earn in 2 years?
$2.05
$45.79
$1.99
$7.51
Lauren has $90 in a savings account. The interest rate is 5%, compounded annually. To the nearest cent, how much will she have in 2 years?
$99.23
$21.98
$56.46
$9.21
A cliff overlooking Oak Grove Lake is experiencing erosion, losing elevation at a rate of 5% every millennium. The cliff's current elevation is 1,200 meters. What will its elevation be in 6 millennia? (Round to the nearest whole number if necessary).
882
465
349
975
Kelsey deposited $30 in a savings account earning 10% interest, compounded annually. To the nearest cent, how much interest will she earn in 3 years?
$9.93
$2.01
$17.60
$5.75
Thanks to its environmental initiatives, Silvergrove has cut its annual CO2 emissions by 5%. This year, the town produced 290,000 metric tons of emissions. If the downward trend continues, how much CO2 will be produced 7 years from now? (Round to the nearest whole number if necessary).
202,518
135,792
78,376
20,658
The mice population is 25,000 and is decreasing by 20% each year. What will be the mice population after 3 years?
12,800
15,777
102, 475
2,500
Your new computer cost $1500 but it depreciates in value by about 18% each year. How much will your computer be worth in 6 years? (Round to the nearest cent.)
$456.01
$556.98
$778.22
$332.63
The value of a book is $58 and depreciates at a rate of 7% per year. Write an exponential function to find the value of the book after 8 years. (Verbal Question: How do we know this is growth or decay?)
f(t) = 58(0.93)t; $32.46
f(t) = 58(1.07)t; $76.32
f(t) = 58(0.93)t; $34.26
f(t) = 58(1.07)t; $73.62
The population of a small town is 1600 and is increasing at a rate of 3% per year. Write an exponential function to model this situation. Then find the population of the town after 10 years. (Verbal Question: How do we know this is growth or decay?)
f(t) = 1600(1.03)t; 2,150 people
f(t) = 1600(0.97)t; 1,738 people
f(t) = 1600(1.03)t; 2,128 people
f(t) = 1600(0.97)t; 1,819 people
The population in Haywardsville is decreasing at a rate of 2.5% per year. If the population in 2000 was 28,000, what will be the expected population in 2015 if this rate of decrease continues? (Verbal Question: How do we know this is growth or decay?)
19,153
19,285
18,956
19,172
In 1985, there were 285 cell phone subscribers in Mayville. The number of subscribers increased by 75% per year after 1985. How many subscribers were in Mayville in 2008? (Verbal Question: What word tells us this is growth or decay?)
110,845,988
111, 043,298
109,678,401
110,544,827
Every year the population drops by 4.5%. What is the population after 3 years?
Imagine you're in a magical land where rabbits multiply at an astonishing rate! Initially, you stumble upon a group of 100 fluffy bunnies. If their population triples every single month, can you guess how many rabbits will be hopping around after 6 months?
600
2000
50000
72900
Imagine you're a scientist observing a peculiar species of bacteria. You notice that their population decreases by a whopping 30% each hour. Starting with a bustling community of 500 bacteria, how many of these microscopic citizens will remain after 3 hours of this phenomenon?
172
200
250
150
