70 Chapter 1 Whole Numbers Review Exercises For Exercises 2–13, translate the English phrase into a mathematical statement and simplify. 2. Fifteen subtracted from 20 3. 71 increased by 14 4. 16 more than 42 5. Twice 14 6. The difference of 93 and 79 7. Subtract 32 from 102 8. Divide 12 into 60 9. The product of 10 and 13 10. The total of 12, 14, and 15 11. The quotient of 24 and 6 12. 41 less than 78 13. The sum of 5, 13, and 25 Concept 1: Applications Involving Multiple Operations 14. Jackson purchased a car for $16,540. He paid $2500 down and paid the rest in equal monthly payments over a 36-month period. How much were his monthly payments? 15. Lucio purchased a refrigerator for $1170. He paid $150 at the time of purchase and then paid off the rest in equal monthly payments over 1 year. How much was his monthly payment? (See Example 1.) 16. Monika must drive from Watertown to Utica. She can travel directly from Watertown to Utica on a small county road, but will only average 40 mph. On the route through Syracuse, she travels on highways and can average 60 mph. Which route will take less time? 17. Rex has a choice of two routes to drive from Oklahoma City to Fort Smith. On the interstate, the distance is 220 mi and he can drive 55 mph. If he takes the back roads, he can only travel 40 mph, but the distance is 200 mi. Which route will take less time? (See Example 2.) 18. If you wanted to line the outside of a garden with a decorative border, would you need to know the area of the garden or the perimeter of the garden? Watertown 70 mi 80 mi Syracuse 50 mi Utica Figure for Exercise 16 19. If you wanted to know how much sod to lay down within a rectangular backyard, would you need to know the area of the yard or the perimeter of the yard? 20. Arisu wants to buy molding for a room that is 12 ft by 11 ft. No molding is needed for the doorway, which measures 3 ft. See the figure. If molding costs $2 per foot, how much money will it cost? 21. A homeowner wants to fence her rectangular backyard. The yard is 75 ft by 90 ft. If fencing costs $5 per foot, how much will it cost to fence the yard? (See Example 3.) 11 ft 12 ft 11 ft 12 ft 3 ft 24. The balance in Gina’s checking account is $278. If she writes checks for $82, $59, and $101, how much will be left over? 25. The balance in José’s checking account is $3455. If he write checks for $587, $36, and $156, how much will be left over? 6 yd 5 yd 12 ft 20 ft 22. What is the cost to carpet the room whose dimensions are shown in the figure? Assume that carpeting costs $34 per square yard and that there is no waste. 23. What is the cost to tile the room whose dimensions are shown in the figure? Assume that tile costs $3 per square foot.
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