The equation for Chin's charges can be found by the equation;
C. 2x + 4y = 84.
What is a system of equations?
A system of equations is two or more equations that can be solved to get a unique solution. the power of the equation must be in one degree.
It is given that George and Chin work as landscapers. George charges $90 for a 6-hour job. Chin charges $84 for the same job.
Also George charges one hourly rate for the first three hours and then reduces his rate for additional hours.
3x+3y=90
Chin charge the same initial rate as George for the first two hours and the same reduced rate for additional hours.
Chin charges a rate for 2 hours, then charges a reduced rate for 4 hours.
There are no discounts present in his rate, so we can eliminate A.
The equation for Chin's charges can be found by the equation;
C. 2x + 4y = 84.
Learn more about equations here;
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