laneey3760
26.07.2019 •
Mathematics
Aplastering contractor charges $18 per square yard( that is $2 per square foot). what is the cost of plastering 100 feet of wall in a house with an 8 foot ceiling
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Ответ:
Area = Length*Height
Area = 100 ft * 8 ft = 800 ft²
Total Cost = (Unit Cost)(Area)
Total Cost = ($2/ft²)(800 ft²)
Total Cost = $1,600
Ответ:
(c)
Step-by-step explanation: Given that,
are two points contained in the function. Since it is a direct variation function, so it is a straight line passing through the given points.
Let,
So, slope of the line is given by
The equation of the line or the function is
Thus, (c) is the correct option.