Mid-Semester Exam Review

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## Mid-Semester Exam Review

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**Mid-Semester Exam Review**7th Grade Math Ms. Catherine Sutton**Problem #1**• What is the solution to the inequality 1/3x + 4 < 8?**Answer #1**• X<12**Problem #2**• Which expression is equivalent to (2x+4)-(6x+5)?**Answer #2**• -4x - 1**Problem #4**• What is the simplified form of 8x – 11v + 17x + 5v?**Answer #4**• 25x – 6v**Problem #5**• Madison stayed 3 nights at a hotel that charged x dollars per night. Sales tax was 12.5%. Which expression represents the total cost Madison paid to stay 3 nights at the hotel?**Answer #5**• 3x(1.125)**Problem #6**• Which expression is equivalent to -1/3(3x-1/2)**Answer #6**• -x + 1/6**Problem #7**• All coats are on sale for 25% off the original price. Michael is buying a coat that is originally priced at $49. Sales tax is 6%. Which expression would calculate the final price of a coat?**Answer #7**• 49(0.75)(1.06)**Problem #8**• Carol wants to save 6% of her paycheck for her college fund. If Carol’s paycheck were $650, which expression would calculate the amount of money Carol wants to save from her paycheck?**Answer #8**• 650(.06)**Problem #9**• Three people went to lunch at a buffet restaurant that charges $9.99 per person for food. • Each drink is an additional $1.99. • Sales tax is 8.5%. • Each person orders a drink, food, and leaves a $1.50 tip. • How much was their total lunch bill?**Answer #9**• $43.49**Problem #10**• What is the value of –0.13 ÷ –2.6?**Answer #10**• 0.05**Problem #11**• Which decimal is equivalent to 3 and 1/5 ?**Answer #11**• 3.2**Problem #12**• What is the value of –2.54 – 6.18 + 4.25?**Answer #12**• -4.47**Problem #13**• Which is equivalent to 2/3 ?**Answer #13**• 0.66 (repeating)**Problem #14**• The Tigers football team gained 7 yards, lost 8 yards, and then lost 7 more yards. What is the total result of these three plays?**Answer #14**• A loss of 8 yards**Problem #15**• Mary had $60 and spent 3/4 of it for a coat. She then bought a skirt with 1/2 the money she had left. How much money did she have left after buying her coat and skirt?**Answer #15**• $7.50**Problem #16**• Jill’s family went out for dinner. The total dinner check was $49.37. Jill’s dad left an 18% tip. About how much tip did Jill’s dad leave?**Answer #16**• $7.50**Problem #17**• It took Melanie 1/3 of an hour to ride her bike 2 and 3/4 of a mile. How many miles per hour can Melanie ride her bike?**Answer #17**• 8 and 1/4**Problem #18**• John is painting a box that is shaped like a cube. One-eighth of a bottle of paint covers of one face of the box. How many bottles of paint will John need to paint the entire box?**Answer #18**• 1**Problem #19**• Baseball cards cost $3.79 a pack. There is a 25% discount if 10 or more packs are purchased. Sales tax is 7%. If Terry bought 15 packs of cards, about how much did he pay?**Answer #19**• $45.00**Problem #20**• Janice is traveling at a constant rate. She traveled 243 miles on 9 gallons of gas and 324 miles on 12 gallons of gas. How many miles can Janice travel on one gallon of gas?**Answer #20**• 27 miles