Write a system of linear equations. solve by graphing. solve analytically by elimination.

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asked Jan 14, 2018 116k views

1 Answer

Andrei Belov · Answer 1 · 2018-01-20T02:33:30+0000

A: y = 60x

B: y = 55x + 40

60x = 55x + 40
5x = 40
x = 8

y = 60*8 = 480

The cost for each plumber is the same, $480, after working 8 hours.
The cost is less for 5 hours working with plumber A.
60*5 = 300 , 55*5 +40 = 315

Write a system of linear equations. solve by graphing. solve analytically by elimination.

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