Reds varied directly as yellows and inversely as greens squared. If 400 reds and 40 yellows went with 10 greens, how many reds went with 20 yellows and 5 greens?

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Respuesta :

https://www.lcps.org/cms/lib/VA01000195/Centricity/Domain/3686/Unit%208%20Day%201%20extra%20practice%20key%20alg%202%201617.pdf its there