Carmine paid an electrician x dollars per hour for a 5-hour job plus $70 for parts. The total charge was $320. Which equation can be used to determine how much the electrician charged per hour?
5x = 320 + 70
5x = 320 - 70
(70+5)x = 320
O (70 - 5)x = 320

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Step-by-step explanation:

50$ an hour

Step-by-step explanation:

this is correct because subtract the $70 for parts and you get 250 and divide that by the 5 hours she had worked, hope this helped

b

2

−

b

b

3

+

7

b

2

+

14

b

+

6

%

−

3

b

3

+

7

b

2

+

14

b

+

6

%

step-by-step explanation:

hello from mrbilldoesmath!

answer:

x - 3

discussion:

x^2 - 9 = (x-3) (x+3)   so

(x^2-9)/ (x + 3) = x-3

you,

mrb