2-4 Solve It!
The diagram gives information about the populations of two towns.
After how many years will the populations be equal? How do you know?
TOWN A
You could make a
table to solve this
problem, but there’s
an easier way.
TOWN B
POPULATION: 3225
POPULATION: 3300
Yearly growth:
100 people each year
Yearly growth:
75 people each year
2-4 Lesson Quiz
1. What is the solution of 10m 1 8 5 7m 1 17?
1
2. Tony is 2 mile ahead of Laura on a jogging path. If Tony is
running at 5 miles per hour, and Laura is running at
7 miles per hour, how long will it take Laura to catch up
with Tony?
3. What is the solution of 3(4a 1 2) 5 2(a 2 2)?
4. Do you UNDERSTAND? Why does the equation
3x 1 7 5 23x 1 2 1 6x have no solution?
Answers
0102_hsm11a1se_0204.indd 102
1/27/09 10:18:51 AM
Lesson Quiz
Solve It!
3 yr; explanations may vary.
1. 3
1
2. 4 of an hour, or 15 minutes
3. 21
4. Answers may vary. Sample:
The variable cancels out and
leaves a false statement.
Prentice Hall Algebra 1 • Solve It/Lesson Quiz on Transparencies
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