If the pattern shown continues, how many black keys appear on a pipe organ with a total of 120 keys? Suggestion: use equivalent ratios or a rate table to rationalize your answer.
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2 answers:
Answer:
You need to find the ratio of the 120 keys so you divided instead of multiplie so the answer is 120 x 120 x 120 x 120= 120 divded by 3= 0.00833333333. Step-by-step explanation:
in 12 key 5 black keys are appearing so consider x key will appear in 120 keys
120/x = 12/5
solving further,
x= 50
Answer - If the pattern shown continues, 50 black keys appear on a pipe organ with a total of 120 keys!
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