Find the Solution by Graphing the System of Equations

question 108

Multiple Choice

Find the solution by graphing the system of equations.
-Sybil is having her yard landscaped. She obtained an estimate from two landscaping companies. Company A gave an estimate of $180 for materials and equipment rental plus $60 per hour for labor. Company B gave and
Estimate of $220 for materials and equipment rental plus $50 per hour for labor. We can represent this situation with
The system of linear equations
C = 180 + 60h
C = 220 + 50h
Where c is the total cost and h is the number of hours of labor. Find the number of hours of labor for the two companies
To have the same total cost.

• A) 3 hr
• B) 7 hr
• C) 4 hr
• D) 8 hr

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