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Chapter 5: Q. 5.77 (page 634)
Translate to a system of equations and then solve:
The difference of two complementary angles is 20 degrees. Find the measures of the angles.
The angle measures are 55 degrees and 35 degrees
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In the following exercises, translate to a system of equations and solve.
At the end of spring break, Lucy left the beach and drove back towards home, driving at a rate of 40 mph. Lucy鈥檚 friend left the beach for home 30 minutes (half an hour) later, and drove 50 mph. How long did it take Lucy鈥檚 friend to
catch up to Lucy?
In the following exercises, translate to a system of equations and solve.
The perimeter of a rectangle is 60. The length is 10 more than the width. Find the length and width.
In the following exercises, translate to a system of equations and solve.
The sum of two numbers is . One number is 12 less than the other. Find the numbers.
In the following exercises, translate to a system of equations and solve.
The Jones family took a 12 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 the canoe in still water and the rate of the current.
In the following exercises, translate to a system of equations and solve the system.
Daniela invested a total of \(50,000, some in a certificate of deposit (CD) and the remainder in bonds. The amount invested in bonds was \)5000 more than twice the amount she put into the CD. How much did she invest in each account?
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