anonymous
  • anonymous
10. A small office unit is to contain 100 ft2 of floor space. A simplified model is shown in the figure. (a) Use an equation to express the length y of the building in terms of the width x. (b) If the walls cost $500 per running foot, use an equation to express the cost C of the walls in terms of the width x. (Disregard the wall space above the doors and the thickness of the walls.)
Mathematics
schrodinger
  • schrodinger
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anonymous
  • anonymous
can you show work please?
anonymous
  • anonymous
Okay we know the floor area of the office is 100 ft^2. The area is given by A=length*width So let x=width and y=length A=x*y We know that the area is 100 so, 100=xy Now that you know the equation can you rewrite this so that y is in terms of x?
anonymous
  • anonymous
where is the simplified figure mentioned in the question????

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anonymous
  • anonymous
do you need help rearranging this 100=xy?

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