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Chapter 4: Q 26. (page 386)
Without graphing, determine the number of solutions and then classify the system of equations.
The number of solution is one and the system of equations is intersect lines, consistent and independent.
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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.
Shelly spent minutes jogging and minutes cycling and burned calories. The next day, Shelly swapped times, doing minutes of jogging and minutes of cycling and burned the same number of calories. How many calories were burned for each minute of jogging and how many for each minute of cycling?
Translate to a system of equations and then solve:
Mark went to the gym and did minutes of Bikram hot yoga and minutes of jumping jacks. He burned calories. The next time he went to the gym, he did minutes of Bikram hot yoga and minutes of jumping jacks burning calories. How many calories were burned for each minute of yoga? How many calories were burned for each minute of jumping jacks?
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.
The Jones family took a -mile canoe ride down the Indian River in two hours. After lunch, the return trip back up the river took three hours. Find the rate of canoe in still water and the rate of current.
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