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Chapter 5: Q 78. (page 611)
Solve the system of equation by substitution
The solution is.
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In the following exercises, solve the systems of equations by substitution.
In the following exercises, translate to a system of equations and solve.
Alyssa is twelve years older than her sister, Bethany. The sum of their ages is forty-four. Find their ages.
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?
Solve the system of equations by substitution and explain all your steps in words.
In the following exercises, translate to a system of equations and solve.
The measure of one of the small angles of a right triangle is 14 more than 3 times the measure of the other small angle. Find the measure of both angles.
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