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OpenStudy (anonymous):
Which pair of ratios forms a proportion? 11/36 , 121/180 13/21, 39/63 14/23 , 70/92 20/51 , 4/5
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OpenStudy (anonymous):
The second one forms a proportion. If you cross-multiply 13*63, and 21*39 they both get 819 which means they are the same. Also if you simplify 39/63 you get 13/21 which means it is a proportion.
OpenStudy (anonymous):
alright... thank You soo much :) Can you help me with one more or no
OpenStudy (anonymous):
Sure before I leave :)
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