, = , = . What is the ratio of the area of to the area of the rectangle?
In the rectangle above,*Express the ratio as a decimal.
(This question was taken from one of my PSAT practice worksheets)
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a r e a r e c t a n g l e = 4 ( 2 x ) = 8 x
a r e a s h a d e d = 8 x − 2 1 ( 3 ) ( x ) − 2 1 ( 1 ) ( x ) = 6 x
The ratio of the areas therefore is 8 x 6 x = 0 . 7 5