
please help math experts?
Andrea 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 an 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
where c is the total cost and x is the number of hours of labor.
Graph the system. What is the x-coordinate of the intersection point of the graphs? Describe what this x-coordinate means in practical terms
equation A:c= 60x + 180
B:c= 50x + 220
then graph
Then combine A and B to find the intersection point
60x+180=50x+220
10x=40
x=4
Find c by subbing 4 in for x in the original equation
c=60(4)+180
=420
The x coordinate mean the point where A becomes more expensive and B becomes less expensive (after 4 hours)
Time Equipment - Equipment and Party Rentals
