Question 308836
Gorillas and chimpanzeea can learn sign language by 1982 a gorilla named koko had learned 700 words. This is 50 fewer than 5 times as many words as a chimpanzee named washoe knew 10 years earlier. How many words did washoe know?
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Let # washoe knew be "x".
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700 = 5w - 50
5w = 750
w = 150 (# of words washoe knew) 
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Cheers,
Stan H.
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