Exponential Word Problems

Exponential Word Problems

9th Grade

12 Qs

quiz-placeholder

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Exponential Word Problems

Exponential Word Problems

Assessment

Quiz

Mathematics

9th Grade

Practice Problem

Hard

CCSS
HSF.BF.A.2, HSF.LE.A.2, HSF.LE.A.4

+1

Standards-aligned

Created by

Barbara White

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12 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

You have 30,016 grams of radioactive kind of rubidium. How much will be left after 54 minutes if its half-life is 18 minutes?

15,008 grams.

7,504 grams

3,752 grams.

1,876 grams.

Tags

CCSS.HSF.LE.A.4

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

A city doubles its size every 64 years. If the population is currently 225,000, what will the population be in 128 years?

The population will be 225,000.

The population will be 450,000.

The population will be 900,000.

The population will be 1,800,000.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Ash has $8,000 in a savings account. The interest rate is 3% compounded once a year. How much will he have in his account in 4 years? Round to the nearest hundredth.

$9,004.07

$2,2848.80

$9,011.94

$8,242.71

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

A sailboat that costs $5,950 decreases in value by 11% per year. How much will the boat be worth after 6 years?

$5,884.00

$5,178.97

$2,992.96

$2,957.04

Tags

CCSS.HSF.BF.A.2

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

The value of a car purchased for $20,000 decreases at a rate of 12% per year. What will be the value of the car after 3 years?

$12,800.00

$13,629.44

$17,600.00

$28,098.56

Tags

CCSS.HSF.BF.A.2

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

The population of Pallet Town increases by 15% every year. If there are currently 190,000 people living there, what will be the population in 13 years?

If necessary, round your answer to the nearest whole number.

4 people

22,972 people

1,169,030 people

1,188,311 people

Tags

CCSS.HSF-LE.A.1C

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Due to its weakening steel industry, Canalave Town has been experiencing a population decline of 10% every year. The current population is 74,000 people. Assuming the trend continues, which equation projects the population in x years?

y = 74,000 (0.10)x

y = 74,000 (0.90)x

y = 74,000 (1.10)x

y = 74,000 (1.90)x

Tags

CCSS.HSF.LE.A.2

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