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Chapter 8 Study Guide
Equations and Inequalities
Solve each equation.
1)
n  3  49
2)
b  12  56
3)
s
 46
5
4)
19m  57
Represent the solution set of each inequality on a number line.
5)
x  3.7
6)
x  26
Write an inequality for the number line.
7)
_____________________
Solve.
8) Patrick is x years old. His brother is 9 years older than he is. If his brother is y years
old, express y in terms of x.
9) Kelvin has 112 stamps in all. The ratio of the number of local stamps to the number
of foreign stamps is 7 : 9. How many more foreign stamps than local stamps does
Kelvin have?
10) Joshua recorded rainfall data for 105 days so far. If this is
1
of the data needed for
4
his science fair project, for how many total days will he record data?
11) Write an inequality for the situation.
There are at least 62 children in the classroom.
12) Mr. James is 4 times as old as his daughter. The difference in their ages is 36
years. Find their ages.
13) Each of the p children at a park receives at least 3 balloons. If the children receive
150 balloons in all, find the maximum number of children at the park.