Mathematics, 06.05.2020 20:10 heaven8606

3) Grand Piano makes models to show
prospective buyers, using a 1:10 ratio. If the
keys on the model are 25 mm wide, how wide
are they on the actual piano?

Answers: 3

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3) Grand Piano makes models to show
prospective buyers, using a 1:10 ratio. If the
keys...