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Mathematics 15 Online
OpenStudy (narissa):

the rectangles shown are similar

sammixboo (sammixboo):

Anymore info? :P

OpenStudy (narissa):

sammixboo (sammixboo):

You get x by finding the scale factor. Do you know what the scale factor is?

OpenStudy (narissa):

no confused

OpenStudy (narissa):

is it 7?

sammixboo (sammixboo):

Close! the scale factor is 1/2 remember

sammixboo (sammixboo):

1/3***

sammixboo (sammixboo):

See if you multiply 15 by 1/3 you get 5

OpenStudy (igreen):

You can also set up a proportion and cross multiply.. \(\dfrac{15}{24} = \dfrac{5}{x}\)

sammixboo (sammixboo):

Mhm. Cross multiply 24 by 5 and then divide you answer by 15

OpenStudy (narissa):

oops its 8

OpenStudy (igreen):

That's correct.

sammixboo (sammixboo):

Right

sammixboo (sammixboo):

:)

OpenStudy (igreen):

Lol

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