Mathematics, 04.02.2020 05:59 genyjoannerubiera

Engines make up 25% of denise's collection of 12 miniature train engines and boxcars. after denise added new engines, her collection was 50% engines . how many engines did she add?

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Engines make up 25% of denise's collection of 12 miniature train engines and boxcars. after denise a...

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