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Chapter 5: Q 86. (page 611)
Solve the system of equationby substitution
The solution is
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In the following exercises, translate to a system of equations and solve.
College roommates John and David were driving home to the same town for the holidays. John drove 55 mph, and David, who left an hour later, drove 60 mph. How long will it take for David to catch up to John?
In the following exercises, translate to a system of equations and solve.
Two angles are complementary. The measure of the larger angle is twelve less than twice the measure of the smaller angle. Find the measures of both angles.
In the following exercises, translate to a system of equations and solve.
The age of Noelle鈥檚 dad is six less than three times Noelle鈥檚 age. The sum of their ages is seventy four. Find their ages.
In the following exercises, translate to a system of equations and solve.
The perimeter of a rectangle is 84. The length is 10 more than three times the width. Find the length and width.
In the following exercises, solve the following systems of equations by graphing.
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