An electrician charges $75 for a house visit $50 an hour for service. What is the independent variable and what is the dependent variable
1 answer:
Answer:
See the explanation below
Step-by-step explanation:
The independent variable is the time of the visit
The dependent variable is the total service charge, this depends on the amount of time spent working in the house
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Given: Area(A)= 63m^2 Length (L)= 2W+5 Width (W)=? A=LxW 63=(2W+5)(W) 63=2W^2 + 5W 0=2W^2+5W-63 0=(2W-9)(W+7) 2W-9=0 then W=4.5 and W+7=0 then W=-7 Can only use 4.5 since it is positive and distance is positive. W= 4.5 m L=2W+5=2 (4.5)+5=9+5=14m
Answer:
$0.13
Step-by-step explanation:
The increase is the <em>difference </em> between the 2009 price and the 2008 price.
$9.50 - $9.37 = $0.13
Answer:
9.85
Step-by-step explanation:
= 9.8488
<em>good luck, i hope this helps :)</em>
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5(x+2x-8)
Step-by-step explanation: