3 years ago

How many black keys will appear on a pipe organ with a total of 240 keys?

Mathematics

1 answer:

Aneli [31]3 years ago

5 0

Answer:

100

Step-by-step explanation:

Black keys 5 10 100

Total keys

Black keys + white keys = 12 24 240

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Step-by-step explanation:

Step one:

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