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This document provides a thorough set of midterm problems covering various mathematical concepts including fractions, decimal conversion, tip calculations, interest accumulation, and basic algebra. Students are encouraged to take their time with each question and verify their answers for accuracy. Key problems include identifying equivalent fractions, expressing numbers in scientific notation, calculating tips based on meal costs, and solving equations. This review is an essential tool for mastering the math concepts necessary for success in your examination.
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Midterm Review Part 2
Answer the following questions. Take your time and double check your answers!!!
26. Which of these fractions is closer to 3 on the number line? a. 5/2 b. 9/4 c. 7/2 d. 1/3 27. Express 0.000567 in scientific notation. 28. Insert a fraction between the given fractions. 2/4 and 3/5
29. 45% of the students in the eighth grade at Ramsey Junior High are in sports. What fraction is that? a. 45/10 b. 5/9 c. 9/20 d. 45/1000 30. Write the following as a decimal: 6.2% b. 8% 31. Which of the following is equivalent to 3/5? a. 6% b. 60% c. 60 d. 6
32. The Wiz advertises a CD player that regularly sells for $65 at a 15% discount. Best Buy advertises the same model CD player at 20% off its regular $75 price. Which is the better offer and how much is saved by taking it? 33. 115% of 52
34. Sue and John had dinners that cost $12.05 and $13.5. They decided to leave a 20% Tip. Find, to the nearest penny, the amount of the tip. • $20.44 b. $30.54 c. $ 30.66 d. $5.11 35. Alex and Dan went to lunch and decided to leave a 15% tip. If Alex's meal was $6.65 and Dan's meal was $9.65 What was the amount of the tip? What was the total cost of their lunch?
36. Ann deposits $6530 in a savings account that pays 5% interest a year. How much will the principal of $6530 accumulate to at the end of three years? Use calculator to compute your answer. 37. $11,500 is invested at 6.25% compounded annually for 7 years. How much money will the investment yield after 7 years? Round to the nearest penny.
38. Find the square root of 88 to the nearest two decimal places. 39. Name the number that describes the situation: • 15 degrees below zero • 120 feet above sea level • A loss of 4 yards
40. -9 + 4 + (-3) 41. 12 – (-3) + (-2) – 5 42. 60 ÷ -5 43. On Tuesday afternoon the temperature was -2 degrees. That night it dropped 10 degrees, and the next morning it rose 25 degrees. What was the temperature on Wednesday morning?
Solve the equation: 44. y + 5 = -12 45. 20 = y – 3 46. 3y – 2= 10 47. -14 = 4 - 3p 48. -4 (y - 2) = y
49. To solve 8 = y + 5: • what operation must be undone? • What must you do to each side of the equation?
1 1 X2 X 50. What expression does each diagram represent? a. 3X2 + 2X + 3 b. 2X2 + 3X + 2 c. X2 + 5 d. 3X2 + 3X + 2