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2nd Quarter Review #4 7th Grade Math 1) Robert took a math test and got 36 correct and 14 incorrect answers. What was the percentage of correct answers? 2) A. A. 36% B. B. 72% C. 50% D. 28% 6) 8(1.5 4.25) Simplify. 2 1 3 3 ______ 5 8 1 52 8 ____ 3) A 2 1 pound bag of 2 white grapes costs $4.70. A 3 1 pound bag of red grapes 4 costs $5.98. Which bag of grapes is a better deal? Name: _________________ 4) Ana earns 2.5% simple interest on $2,000 in her savings account. After 3 years, how much interest will Ana have earned on her savings account? Hint: Use I pr t x 5 C. 6(0.8) 9.8(2.8) _______ 7) A crayon factory can make about 35 million crayons in 7 days. How many crayons can the factory make in one day? 5) The rectangle below has a length of 5 units and a perimeter of 15 units. Find the width of the rectangle. Width: ____________ 8) Evaluate each expression. A. 18x 5 for x 0.3 _______ B. x for x 35 9 9) Roger needs fertilizer for his 1-acre garden. The 1 package suggests pound 2 1 of fertilizer for of an 45 acre. How many pounds of fertilizer does Mr. Rogers need for his entire garden? 10) Linda and James each wrote an expression using the variables a, b, and c. Linda’s expression: 2a 10b c James’s expression: 3a 5b c _______ C. 7.25 4x for x 9.5 _______ What is the sum of the two expressions? 11) A flag pole 20 ft. tall casts a shadow 30 ft. long. What is the length of the shadow of a 6 ft. tall person? 12) Warren bought 2 packages of hot dogs for $3.50 each. Each package had 8 hot dogs in it. What was the approximate price per hot dog? 13) Janice needs 2 14) Change into a 1 cups decimal. 4 1 of flour and 1 cups of 2 8 3 sugar for a recipe. She wants to double the recipe. How many total cups of flour and sugar will Janice need? 15) Find each missing value. A. Find 66% of 85 ______ B. 45 out of 50 is what percent? _______ C. 82 is 17% of what number? _____ 16) Graph and connect the following points, then find the area of the shape. ( -2, 5), ( -2, -4), (2, -4), (2, 5). 17) Erika sells bags of fresh coffee beans. Based on Erika’s data, what was the cost per pound of coffee? Pounds 1 5 8 14 Cost $? $44.95 $71.92 $125.86 18) Tony’s investments 19) Simplify each lost $12,545.50 in value of expression. the past 2 1 months. On 2 average, how much did his investments change each month? 20) Find the perimeter and area of the triangle below. A. 15m (2m) _____ 4m – 9 2m + 6 B. 30.2 p 6.85 p ______ 8 A. $ - 31,363.75 B. $ 31,363.75 C. 1 2 w w ______ 3 9 a). Perimeter = _________ C. $ - 5,018.20 D. $ 5,018.20 Area = _____________ k = ____________ D. 7(2k 4) 36k __________ b). Area = _____________