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a construction company charges $15 per hour for debris removal , plus a one -time fee for the use of the trash dumpster.the total fee for 9 hours of services was$195 . write and solve a linear equation to find the one-time fee for the trash dumpster.

Respuesta :

Let h be the numbers of hours, f be the one-time fee and c the cost charged. The equation is

[tex]c=15h+f[/tex]

Since you pay $15 per four, plus the fee. We can solve this equation for the fee:

[tex]f=c-15h[/tex]

If we plug c=195 and h=9, we have

[tex]f=195-15\cdot 9=195-135=60[/tex]

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