Emu vs. Ostrich

The ostrich and the emu are the two largest birds. An emu is usually 1/2 the size of an ostrich. The sum of their heights is 150 inches. How tall is the average ostrich?

Correct answer:

o =  100 in

Step-by-step explanation:

e= 21 o o+e=150  in  o+21 o=150  o+1/2 o=150  3o=300  o=3300=100=100 in  o=100  e=150o=150100=50 in

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