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Chapter 4: Q 28 (page 386)
Without graphing, determine the number of solutions and then classify the system of equations.
The number of solution is infinite and the system of equations is coincident lines, consistent and dependent.
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Translate to a system of equations and then solve:
Alexis wants to build a rectangular dog run in her yard adjacent to her neighbor鈥檚 fence. She will use feet of fencing to completely enclose the rectangular dog run. The length of the dog run along the neighbor鈥檚 fence will be feet less than twice the width. Find the length and width of the dog run.
A small jet can fly miles in hours with a tailwind but only miles in hours into a headwind. Find the speed of the jet in still air and the speed of the wind.
Solve the system by graphing:
Troy and Lisa were shopping for school supplies. Each purchased different quantities of the same notebook and thumb drive. Troy bought four notebooks and five thumb drives for . Lisa bought two notebooks and three thumb dives for . Find the cost of each notebook and
each thumb drive.
Two angles are supplementary. The measure of the larger angle is five less than four times the measure of the smaller angle. Find the measure of both angles.
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