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Mathematics 17 Online
OpenStudy (anonymous):

On a blueprint, the scale indicates that 6cm represents 15ft. What is the length of a room that is 9cm long and 4cm wide on the blueprint.

OpenStudy (anonymous):

@Mikeyy1992 @malehuman01

OpenStudy (psymon):

You need to use a proportion for this problem. You must set up something like this: \[\frac{ 6 }{ 15 }=\frac{ 9 }{ x } \] On top is our centimeters and on bottom is our feet. This says that if 6 corresponds to 15 feet, then 9 corresponds to x ft

OpenStudy (psymon):

To solve for x, you cross-multiply to start with.

OpenStudy (anonymous):

thank yu u are the reason I just made an 80 on my semester

OpenStudy (psymon):

^_^ Good luck with the rest of your work.

OpenStudy (anonymous):

thank you

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