3 years ago

An Electrician charges $30 for a service call plus $75 per hour of service. If he charged 210 how many hours did he work?

Mathematics

1 answer:

andreyandreev [35.5K]3 years ago

3 0

30 + 75x= 210
Subtract 30 from both sides
75x=180
Divide both sides by 75
X =2.4

Worked 2.4 hours

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Divide x^3+2 by x+1 long division ppleeease! :)

anzhelika [568]

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– x³ – x² ⋮ ⋮
– x² + 0x ⋮
+ x² + x ⋮
+ x + 2
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+ 1

 Quotient: Q(x) = x² – x – 1;

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3 years ago

What is the volume of a pyramid that is 15mm , 18mm , 21mm in cubic millimeters

Ugo [173]

Answer:

V=1890mm

Step-by-step explanation:

You must use its formula: which is

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