Q.1. Solve 23 - 3(y - 7) = 8 for y. Q.2. Solve 9(n + 5) - (3n - 7) = 20 - (4n - 2) for n. Q.3. Dolores bought a crib on sale for $350. The sale price was 40% of the original price. What was the original price of the crib? Q.4. Angel received a raise in his annual salary from $55,400 to $56,785. Find the percent change. Q.5. Solve the formula V = LWH for L. Q.6. Solve the formula h = 48t + \frac{1}{2}at^2 for a. Q.7. Tickets for a basketball game cost $2 per student and $5 per adult. The number of students was three less than 10 times the number of adults. The total amount of money from ticket sales was $619. How many of each ticket were sold? Q.8. Amber wants to put tiles on the backsplash of her kitchen counters. She will need 36 square feet of tile. She will use basic tiles that cost $8 per square foot and decorator tiles that cost $20 per square foot. How many square feet of each tile should she use so that the overall cost of the backsplash will be $10 per square foot? Q.9. Solve $a + \frac{2}{3} \ge \frac{7}{12}$ for a. graph the solution on the number line and write the solution in interval notation. Q.10. Solve 9h - 7(h - 1) \le 4h - 23 for h. graph the solution on the number line and write the solution in interval notation.
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Please help me answer questions 3 - 5.
Supreeta N.
Problem Practice: 1. Think of a number. Double the number. Subtract 6 from the result and divide the answer by 2. The quotient will be 20. What is the number? 2. There are three consecutive even numbers such that twice the first is 20 more than the second. Find the numbers. 3. Jay's father is twice as old as Jay. In 20 years, Jay will be two-thirds as old as his father. How old is each now? 4. Wolfgang and Heinrich worked as electricians at $14 and $12 per hour respectively. Wolfgang worked 10 hours more than Heinrich. If their total income for the month was... how many hours did each work during the month?
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