Thursday, October 2, 2014 Quarter One Review tomorrow 1. On the last day of January the temperature was 14°F at 8 A.M . A cold front came through and at 3 P.M. the temperature had dropped to -3°F. What was the difference in temperature from 8 A.M. to 3 P.M? • 2. Carla has $300 in her bank account. This week she deposited $50. On Friday she wrote a check for $15 and withdrew $25 to have cash for the weekend. How much money does Carla have in her account now? • 3. The temperature on the first day of October began rising at 8 A.M. By 12 P.M. the temperature had risen 32°. What was the average change in temperature per hour? 4. Pumpkins are on sale for $1.27 a pound. Mrs. Stoecker bought a 2 pumpkin that weighed 11 pounds. 3 How much change will she receive if she gives the clerk $50.00? 5. The temperature at 6 A.M. was -6°C. The temperature increased 25°C between 6AM and noon, but then had dropped 12°C by 10 P.M. What was the temperature at 10 P.M.? 6. Select the fraction that is not 1 equivalent to - ? 3 −1 3 Explain why −1 −3 1 −3 7. Ms. Smith dug a hole 3 feet deep and placed a stick to hold her tomato plants upright. If the stick was 5 ½ feet long, what was the height of the stick above the ground for her tomato plant? • 8. Suzy is training for a halfmarathon. Before she began training, she could run 1.1 miles. After running consistently every week for 8 weeks, she could run the 13.1 miles for the marathon. What was the average change in Suzy’s running distance per week? 9. Order the set of rational numbers in the correct order from least to greatest? - 1 2 , -3, 0.25, 5 , 6 0 10. Which value of x can be correctly substituted into the problem 𝟏 𝟑 𝟒 , 𝟓 2 , 5 < x < 0.3, 𝟓 𝟖 5 7 11. What is the value of 4xy2 2 3 when x = and y = 1 5 𝟐 𝟓 12. Solve 6 · + 18 ÷ 32 13. Simplify the expression: 32 + 2(10 – 32) 14. Joe has a square poster in his room that covers an area of 289 in2. What is the length of one of the sides of his poster? 15. The football stadium holds 32,400 people. Write the number in scientific notation. 16. Pine Lake has about 2 x 108 liters of water. Hickory Lake has about 4.3 x 108 liters of water. What is the total liters of water contained in these two lakes? 17. A computer can perform 4.66 x 15 10 instructions per hour. How many instructions is that per minute, 6 x 101 ? 18. In 2005, the population in the United States will be about 2.87 x 108. Spending for health care was about $5.745 x 103 per person. About how much did the United States spend on health care in 2005? Answers • • • • • • • • • • • • • 1. 14-(-3)= 17 2. $300+$50=$350-$15=$335-$25= $310 3. 8am-12pm=4 hours 32/4= 8 hours 4. 1.27 x 11 23 = $14.82 $50.00-$14.82= $35.18 5. -6+25=19-27= 7 degrees 1 6. 3 This fraction is NOT Equivalent because a negative divided by a negative is a positive. 7. 5 12 -3 = 212 8. 13.1-1.1=12/8= 1.5 running distance per week 1 5 9. -3, - 2 , 0, 0.25, 6 2 10. 5 11. 758 12. 4 52 13. 11 14. 17 inches 15. 3.24 x 104 people 16. (add) 6.3 x 107 Liters of water 17. (divide) 7.77 x 106 instructions per minute 18. (multiply) $1.65 x 1012 per person