Download Algebra – Week 3 Translate each sentence into an equation and

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Transcript
Algebra – Week 3
Translate each sentence into an equation and solve it.
1. The sum of six and four times d is the same as d minus nine.
2. Three times the difference of two times m and five is equal to eight times m to the second power
increased by four.
Solve each equation.
3. x – 5 = -11 4. 2/3 = w + ¼ 5. t/6 = -3
6. 2a – 5 = 13 7. p/4 – 3 = 9 8. 5y – 4 = 9y + 8
9. 3(2k – 2) = -2(4k – 11)
10. At Poppa’s Pizza the price of a large pizza is determined by p = 9 + 1.5x, where x is the number of
toppings added to a cheese pizza. If Daniel spent $13.50 on a pizza, how many toppings did he choose?
11. Find the value of x so that the perimeter of a rectangle with area of x(x+3) is the same as the
perimeter of a right triangle with area ½(14)(x – 4).
12. Evaluate the expression |3t – 2u|+ 5v if t = 2 , u = -5, and v = -3.
Solve and graph each equation
13. | p – 4| = 6
14. |2b + 5 | = 9
15. Anna uses 2 feet of thread for every three squares that she sews for her quilt. How many squares
can she sew if she has 38 feet of thread?
16. Find the total price of a sweatshirt that is priced at $48 and taxed at 6.5%.
17. Clark wants to buy a new 3D TV. He sees one advertised at 20 % from an original price of $3200.
How much does it cost?
18. Solve 5x – 3y = 9 for y.
19. Solve A = ½ bh for h.
20. Daniel has 12 mL of a 5% solution. He also has a solution with a concentration of 30%. How many
mL of 30% solution does he need to add to the 5% solution to make a 20% solution? Show your
reasoning on this.
21. Shane bikes 5 miles to the park in 30 minutes and 3 miles to the library in 35 minutes. What was her
average speed?
22. On a map of North Carolina the distance between Charlotte and Wilmington is 14.75 inches. If 2 in
= 24 miles, what is the approximate distance between the two cities?
23. Orlando has $1350 in the bank. He wants to increase his balance to a total of $2550 be depositing
$40 per week from his paycheck. How many weeks will it take to meet his goal?
24. The sum of three consecutive whole numbers is 18. What is the greatest number?
25. If a and b represent integers, what property is illustrated by ab = ba?