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The ratio (3r - 2)/5 is equa to the ratio (5 + 2r)/8.  What is the value of r?

 Sep 29, 2021
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Just equate the two expressions

 

(3r - 2)/5  =   (5 + 2r)/8.      Now cross multiply

 

8 ( 3r-2) = 5 ( 5+2r)      <=====   now just solv for 'r'    ....you can do that yah? cheeky

 Sep 29, 2021

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