In the following exercises, solve the system of equations by using elimination.
219.
Want to see the full answer?
Check out a sample textbook solutionChapter 11 Solutions
Intermediate Algebra
Additional Math Textbook Solutions
College Algebra in Context with Applications for the Managerial, Life, and Social Sciences (5th Edition)
Intermediate Algebra (7th Edition)
A Graphical Approach to College Algebra (6th Edition)
College Algebra (7th Edition)
Introductory and Intermediate Algebra for College Students (5th Edition)
College Algebra (6th Edition)
- In the following exercises, translate to a system of equations and solve. 206. Nancy bought seven pounds of oranges and three pounds of bananas for $17. Her husband later bought three pounds of oranges and six pounds of bananas for $12. What was the cost per pound of the oranges and the bananas?arrow_forwardIn the following exercises, translate to a system of equations and solve. 248. Lucinda had a pocketful ofdimes and quarters with a valueof $ $6.20. The number of dimes is eighteen more than three times the number of quarters. How many dimes and how many quarters does Lucinda have?arrow_forwardIn the following exercises, translate to a system of equations and solve. 254. Joseph would like to make 12 pounds of a coffee blend at a cost of $6.25 per pound. He blends Ground Chicory at $4.40 a pound with Jamaican Blue Mountain at $8.84 per pound. How much of each type of coffee should he use?arrow_forward
- In the following exercises, translate to a system of equations and solve. 202. June needs 48 gallons of punch for a party and has two different coolers to carry it in. The bigger cooler is five times as large as the smaller cooler. How many gallons can each cooler hold?arrow_forwardIn the following exercises, solve the following systems of equations by graphing. 329. {3x+y=6x+3y=6arrow_forwardIn the following exercises, translate to a system of equations and solve. 234. A commercial jet can fly 1,320 miles in 3 hours with a tailwind but only 1,170 miles in 3 hours into a headwind. Find the speed of the jet in still air and the speed of the wind.arrow_forward
- In the following exercises, translate to a system of equations and solve. 172. Peter is buying office supplies. He is able to buy 3 packages of paper and 4 staplers for $40 or he is able to buy 5 packages of paper and 6 staplers for $62. How much does a package of paper cost? How much does a stapler cost?arrow_forwardIn the following exercises, translate to a system of equations and solve. 416. Greg is paddling his canoe upstream, against the current, to a fishing spot 10 miles away. If he paddles upstream for 2.5 hours and his return trip takes 1.25 hours, find the speed of the current and his paddling speed in still water.arrow_forwardIn the following exercises, translate to a system of equations and solve. 232. A small jet can fly 1,435 miles in 5 hours with a tailwind but only 1215 miles in 5 hours into a headwind. Find the speed of the jet in still air and the speed of the wind.arrow_forward
- In the following exercises, translate to a system of equations and solve. 174. The total number of calories in 2 hot dogs and 3 cups of cottage cheese is 960 calories. The total number of calories in 5 hot dogs and 2 cups of cottage cheese is 1190 calories. How many calories are in a hot dog? How many calories are in a cup of cottage cheese?arrow_forwardIn the following exercises, solve each system of equations. Use either substitution or elimination. 411. {x+yz=12xy+2z=83x+2y+z=9arrow_forwardIn the following exercises, translate to a system of equations and solve. 91. Peter is buying office supplies. He is able to buy 3 packages ofpaper and 4 staplers for $40 or he is able to buy 5 packages of paper and 6 staplers for $62. How much does a package of paper cost? How much does a stapler cost?arrow_forward
- Elementary AlgebraAlgebraISBN:9780998625713Author:Lynn Marecek, MaryAnne Anthony-SmithPublisher:OpenStax - Rice University