Mat 0028 Practice Test 1 Chapter 2 Name___________________________________ Simplify. 1) 240 ÷ 6 - 4 11) 3(y + 5) = 4(y - 2) 12) 2) 3 · (5 + 5)2 - 2 · (6 - 3)2 Solve. Add or subtract. 3) |14| - |-20| Simplify the expression. 4) -3 + 14 + 8 3 1 7 x+ = x 2 5 5 13) Four times the difference of a number and one is equal to six times the sum of the number and three. Find the number. 14) Three times the sum of some number plus 3 is equal to 7 times the number minus 15. Solve the equation. 5) t - 4 = 14 Solve the problem. 15) A 9-ft. board is cut into 2 pieces so that one piece is 5 feet longer than 3 times the shorter piece. If the shorter piece is x feet long, find the lengths of both pieces. Solve the equation. Don't forget to first simplify each side of the equation, if possible. 6) -5a + 2 + 6a = 7 - 30 16) Mary and her brother John collect foreign coins. Mary has twice the number of coins that John has. Together they have 105 foreign coins. Find how many coins Mary has. 7) (x - 6) - (x + 7) = 3x Solve the equation. 1 8) x = 9 7 Solve. 9) 3n - 3 = 21 10) 0.7x - 0.9x - 6 = 4 1 17) You have taken up gardening for relaxation and have decided to fence in your new rectangular shaped masterpiece. The length of the garden is 2 meters and 20 meters of fencing is required to completely enclose it. What is the width of the garden? 18) Ted drove to his grandparents' house for a holiday weekend. The total distance (one-way) was 476 miles and it took him 13 hours. How fast was Ted driving? (Round answer to the nearest whole number) 19) Use the formula C = Solve the problem. Assume that simple interest is being calculated in each case. Round your answer to the nearest cent. 26) Robert Hall opened a security service company. To pay for startup costs, Robert Hall borrowed $45,000 from a bank at 9% for 1 year. Find the interest. 5 (F - 32) to write 5° F as 9 Solve. Round answers to the nearest cent. 27) A store is advertising 10% off sale on everything in the store. Find the discount of a camera that regularly sells for $170. degrees Celsius. Substitute the given values into the formula and solve for the unknown variable. 1 20) A = (b + B)h; A = 140, b = 19, B = 16 2 Solve. Round to the nearest tenth, if necessary. 28) A company increased the number of its employees from 100 to 105. What was the percent increase in employees? Solve the equation for the indicated variable. 1 for h 21) V = Ah 3 22) P = 2L + 2W 29) In the past ten years, the population of a city decreased from 150,000 to 145,000. Find the percent decrease. for L Use a proportion to solve the problem. 30) Joan can mow a 7-acre field in 4 hours. How long would it take her to mow a 4.9-acre field? Solve. Round to the nearest hundredth, if necessary. 23) 92 is 20% of what number? 31) On Anne's bicycle, the ratio of pedal turns to rear-wheel turns in second gear is 4 to 7. If her rear wheel turns 896 times per mile, how many times does she turn the pedal in one mile? 24) 50% of what number is 76? Find the simple interest. Round your answer to the nearest cent. 25) Principal = $20,200 Rate = 4% Time in years = 3 Solve the equation. 4 x+6 32) = 5 x + 11 33) 2 2x - 6 5x + 4 = 4 2 Solve the inequality. 34) 6x + 10 5x + 3 Solve the inequality and write the solution set in interval notation. 35) - 3x 15 Solve the inequality. 36) 30x - 15 > 5(5x - 4) 43) 3.6 mi = ft 44) 55 km = m 45) 87.55 m = mm 46) 92.05 m = km 47) 113 cm = m 48) 5 km = mi (Round to the nearest tenth.) 49) 3.9 m = in. (Round to the nearest tenth.) 50) 3.5 yd = m (Round to the nearest tenth.) 37) -9x - 21 -3(2x + 15) Solve. 38) Eight less than three times a number is less than ten. Find all such numbers. 39) The area of a rectangle must be at least 102 square feet. If the length is 6 feet, find the minimum for the rectangle's width. 40) A student scored 73, 74, and 97 on three algebra tests. What must he score on the fourth test in order to have an average grade of at least 85? Complete. 41) 204 in. = 42) 6 ft = ft in. 3
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