9. You need | 3 ft3 of sand to make 8 ft3 of concrete. How much sand (in ft³) would you need to make 192 ft³ of concrete? ft3 10. A buyer purchases 80 yd of material for $112. Then an additional 90 yd are ordered at the same unit cost. What is the additional cost (in dollars)? 11. A farmer has a total yield of 49,000 bu of corn from a 350 acre farm. What total yield should he expect from a similar 520 acre farm (in bu of corn)? 12. A copper wire 660 ft long has a resistance of 1.042 Q. How long is a copper wire of the same size (in ft) whose resistance is 2.605 N? (The resistance of these wires is proportional to their length.) 13. An automobile uses 17 gal of fuel to go 590 mi. How many gallons are required to travel 850 mi? (Round your answer to one decimal place.) 14. When finding the percent, round to the nearest tenth of a percent when necessary. An automobile is listed to sell at $25,100. The salesperson offers to sell it to you for $23,300. What percent of the list price is the reduction? 15. When finding the percent, round to the nearest tenth of a percent when necessary. A live hog weighs 253 lb, and its carcass weighs 193 lb. What percent of the live hog is carcass? % What percent is waste? %
9. You need | 3 ft3 of sand to make 8 ft3 of concrete. How much sand (in ft³) would you need to make 192 ft³ of concrete? ft3 10. A buyer purchases 80 yd of material for $112. Then an additional 90 yd are ordered at the same unit cost. What is the additional cost (in dollars)? 11. A farmer has a total yield of 49,000 bu of corn from a 350 acre farm. What total yield should he expect from a similar 520 acre farm (in bu of corn)? 12. A copper wire 660 ft long has a resistance of 1.042 Q. How long is a copper wire of the same size (in ft) whose resistance is 2.605 N? (The resistance of these wires is proportional to their length.) 13. An automobile uses 17 gal of fuel to go 590 mi. How many gallons are required to travel 850 mi? (Round your answer to one decimal place.) 14. When finding the percent, round to the nearest tenth of a percent when necessary. An automobile is listed to sell at $25,100. The salesperson offers to sell it to you for $23,300. What percent of the list price is the reduction? 15. When finding the percent, round to the nearest tenth of a percent when necessary. A live hog weighs 253 lb, and its carcass weighs 193 lb. What percent of the live hog is carcass? % What percent is waste? %
Algebra and Trigonometry (6th Edition)
6th Edition
ISBN:9780134463216
Author:Robert F. Blitzer
Publisher:Robert F. Blitzer
ChapterP: Prerequisites: Fundamental Concepts Of Algebra
Section: Chapter Questions
Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
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