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Mathematics 21 Online
OpenStudy (anonymous):

Carpet sells for $4 per square foot and will cost you $836 to recarpet your room. If your room is 19 feet long, how many feet wide is it?

OpenStudy (anonymous):

@robtobey @rsmith6559

OpenStudy (anonymous):

find the area of the room first

OpenStudy (anonymous):

4x=836

OpenStudy (anonymous):

solve for x

OpenStudy (anonymous):

209

OpenStudy (anonymous):

correct

OpenStudy (anonymous):

so now we have the area of the carpet

OpenStudy (anonymous):

do remember what the formula is for the area of a rectangle

OpenStudy (anonymous):

a=wl

OpenStudy (anonymous):

yep, so plug in the values we know and solve for w

OpenStudy (anonymous):

so 209=wl

OpenStudy (anonymous):

we also know the length

OpenStudy (anonymous):

209=(w)(19)

OpenStudy (anonymous):

209=(11)(19)

OpenStudy (anonymous):

good job

OpenStudy (anonymous):

yay thank!

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