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Chapter 3: Multi-step Equations and Inequalities

Q.23

Page 165

Extended Response
The table shows the annual fee at two gyms and G the fee each time members take an aerobics class.

  1. In a year鈥檚 time, which gym is less expensive If you plan to take 4 aerobics classes each month? A \(540 \)3
  2. Write and solve an inequality to determine the number B \(360 \)5

of aerobics classes for which the total cost for 1 year at gym A is less than that at gym B.

c. how many aerobics classes should you average each month so that

the total cost for I year at gym H Is less than that at gym A?

Q. 23

Page 127

Solve the equation. Check your solution.

45-p=8

Q23.

Page 140

Solve the inequality. Graph and check your solution.

-11<y+5

Q23.

Page 146

Solve the inequality. Graph your solution.

6q>-84

Q23.

Page 122

Write the verbal sentence as an equation. Then solve the equation.

鈥淔ive minus the product of 2 and a number is 7鈥.

Q23.

Page 151

A small company has an advertising budget of \(15,000. The company plans to produce and air a television commercial. It will cost \)500 to produce the commercial and an additional $50 each time the commercial is aired. How many days can the company afford to run the commercial if it is aired once a day?

Q23.

Page 133

Solve the equation. Check your solution.

9+2x=3x-2

Q .23CR

Page 158

Solve the inequality. Graph your solution.

7h<-56

Q .23CT

Page 160

Write the verbal sentence as an inequality. Also, solve the inequality

鈥淓ight times the sum of 5 and a number is less than 56.鈥

Q. 24

Page 122

Write the verbal sentence as an equation. Then solve the equation.

鈥淭hirty-two minus the product of 9 and a number is 140鈥.

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