2. Using the table above, determine the missing value using the equation 3x + 9 = y. x y
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1 Chapter 8 and 9 Practice Test 1. Select the equation that has m = as a solution. A. m 21 = B. 9m = C. m + 14 = 9.23 D m = Using the table above, determine the missing value using the equation 3x + 9 = y. x y For the equation y = 7m - 6, what does y equal when m is 3? 4. Write an equation that best represents the total (T) change in weight of a bag of candy over a 24 hour period, if c equals the rate of change in ounces per hour? 5. The sum of q plus r equals 13. If q = 37, write an equation can be used to find the value of r? 6. The principal ordered eight pizzas for the twenty students of the month. If each pizza has 6 pieces, what is the ratio of pieces of pizza to students of the month? Reduce your answer to lowest terms.
2 7. On a flight from San Diego to Baltimore, 24 of the 148 seats are empty. What is the ratio of filled seats to empty seats on the flight? 8. On a farm, they use a well that drops 37 feet below sea level. Which of the following equations represents the depth of the well? A. 37 = 37 B. 37 = 37 C. 37 = 37 D. 37 = Look at the equation below. x = y + 13 If x = 68, what is y? 10. Which of the following pairs of numbers is matched with its correct least common multiple? A. The least common multiple of 3 and 12 is 36. B. The least common multiple of 6 and 8 is 24. C. The least common multiple of 4 and 10 is 40. D. The least common multiple of 1 and 7 is Point R is located at (7, 13). Which point represents a reflection across the y axis? 12. Alfredo is creating a budget, and he has made a table listing his account balances at some stores. Store A $ Store B $ Store C $ Store D $ Store E $ Store F $ Alfredo also owes his parents $ Alfredo claims that the amount he owes to his parents is lower than any of the account balances at the various stores. Which three account balances prove that Alfredo's claim is false? 13. Write an equation and a proportion that shows the correct method to find 7% of 134?
3 14. Emily counted the candies she had in a jar. She discovered that half of the candies were red. If she had 70 red candies, in which equation does x represent the total number of candies in the jar? A. 1/2 (70) = x B. 1/2 x = 70 C. 70 x = 70 D /2 = x 15. Which of the following values for Y and S make the statement Y = S true? Select all that apply. A. Y = , S = 17 5 B. Y = 2 + 8, S = 8 2 C. Y = , S = 18 6 D. Y = , S = Based on this table of amount of debt, who is in more debt than Tristan? Select all that apply. Name Debt Dulce James Aden Aleen Tristan Juan is saving money for a new mountain bike. The amount (a) Juan needs to save is more than $ Which inequality models the amount Juan needs to save? A. $80.45 < a B. $90.45 < a C. a < $80.45 D. a > $ Create a number line that represents all solutions of x > 13.5
4 19. Create a number line that represents all solutions of r > Mr. Wong wants his 6th grade math class to memorize their multiplication facts. He decides to increase the number of facts they are expected to memorize each week and creates the following table. Week (w) Number of Multiplication Facts Memorized (m) Using w = number of weeks and m = number of multiplication facts, write the following equation that is represented by the table Mr. Wong created. 21. Using substitution, in which of the following equations does y = 4? Select all that apply. A. 7y = 11 B. 3y + 9 = 21 C. 6y + 5 = 28 D. 5y + 3 = What value of y makes this true? 18 y < What value of x makes this true? 46 > 19 + x 24. Look at the problem below. j = 43 2k If k = 13, what is j?
5 25. Enter the unknown value that makes this statement true. 45% of is Daniel is helping his mom fold the laundry. He folds towels at a constant speed. He made the following table showing how many towels he could fold in a certain number of seconds. Number of Towels Folded Total Number of Seconds Spent Folding Towels How long would it take to fold 18 towels? 27. It takes Virginia 24 minutes to ride her skateboard 4 blocks. Using this unit rate, how many minutes will it take Virginia to ride her skateboard 1 block? 28. Use the distributive property. Enter the number that makes the following equation true. 6(8 + 4) = x + 24 Find x. 29. Aaron rides his bike in order to deliver newspapers around his neighborhood every morning. He works at a constant rate shown in the table below. Time Worked (minutes) Number of Newspapers Delivered On Monday, Aaron worked for 67 minutes but could not finish his route because his bicycle got a flat tire. On Tuesday, Aaron worked for 38 minutes and had to stop early because the bag carrying his newspapers broke. How many total newspapers did Aaron deliver on Monday and Tuesday combined?
6 30. Enter the greatest common factor of 36 and Enter the value of k that makes the given equation true. k = A weather report indicated that it rained 3 days in the last week. Write a ratio that compares the number of days it rained to the number of days it did not rain in the last week. 33. Hudson had 20 baseball cards in his collection. He receives x number of baseball cards for his birthday. Enter an equation that represents the total number of baseball cards, y, Hudson now has in his collection.
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