В этом уроке подано еще одно решение задачи на пропорции. Это видео - русский перевод лекции "Alternate Solution to Ratio Problem (HD Version)" Академии Хана (https://www.khanacademy.org/math/algebra/rational-expressions/ratios_algebra/v/alternate-solution-to-ratio-problem--hd-version) Перевод Веры Богуславской. Наша страница на Facebook - http://www.facebook.com/KhanAcademyRussian This video is a Russian dubbed version of Khan Academy "Alternate Solution to Ratio Problem (HD Version)". This video is a translation of a Khan Academy lecture available at https://www.khanacademy.org/math/algebra/rational-expressions/ratios_algebra/v/alternate-solution-to-ratio-problem--hd-version The translarion was made by Vera Boguslavskaya. Join us on https://www.facebook.com/KhanAcademyRussian