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DATE
PreAP Homework due Wednesday, Dec. 21
PERIOD
SCORE
1. Sarah is 7 years older than her sister. The sum of their ages is 43. Define a variable.
Then write an equation that could be used to find their ages. TEKS 8.8(C)
2. Three bowls plus the cereal in them have a mass of 135.6 grams. The total mass of all
the cereal is 42.3 grams. Write and solve an equation to find the mass of one bowl.
TEKS 8.8(C)
3. At a book fair four books and a poster cost a total of $25.50. The poster costs $3.50
and the books all cost the same. Write and solve an equation to find the cost of one
book. TEKS 8.8(C)
Solve each equation. Check your solution. TEKS Preparation for 8.8(C)
2
1
4. 4.5 + 3a = 28.5
5. 1 m + 4 = 5
5
6. −7.7 = –3.7g + 7.1
20
7. −2.6d – 0.49 = –1.79
8. A cell phone plan charges a monthly fee of $35 plus $0.05 per minute. Another
company does not charge a monthly fee but charges $0.25 per minute. For how many
minutes is the cost of the plans the same? TEKS 8.8(C)
Course 3 • Chapter 6 Equations and Inequalities
Solve each equation. Check your solution. TEKS 8.8(C)
2
1
9. –2n + 13 – 1 = – 3
10. 11 + 3x – 7 = 6x + 5 – 3x
11. 3(2 + 5a) – 10 = –22 + 6a
12. 6x + 5 – 2x = 4(1 + x) + 1
Heather and some friends went to the jewelery store. They bought 5 necklaces and
4 bracelets and spent a total of $58.50. Each bracelet cost $2.25 less than a necklace.
TEKS 8.8(C)
13. Define the variable. Write an equation that can be used to find the cost of one
necklace
14. Solve the equation to find the cost of a necklace.
15. Identify and verify the values of x and y that simultaneously satisfy the
pair of equations y = –2x + 3 and y = –x – 1 by graphing. TEKS 8.9
16.
Course 3 • Chapter 6 Equations and Inequalities
17.
18. Which multiple choice answer best describes the graph of the inequality?
19. Which multiple choice answer best describes the graph of the inequality?
Course 3 • Chapter 6 Equations and Inequalities
20. Which multiple choice answer best describes the graph of the inequality?
Course 3 • Chapter 6 Equations and Inequalities