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ZoiaMoon
@ZoiaMoon
October 2021
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Сумма двух чисел равна 44. Найти эти числа, если 20% одного числа равны 4/5 другого
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DedushkaBake
20%=1/5
x+y=44
х/5=4y/5 умножим на 5
x+y=44
x=4y подставим в первое уравнение
4у+у=44 5у=44 у=44/5=8,8 x=4y=4*8,8=35,2
проверка 35,2+8,8=44 35,2/5=7,4 4*8,8/5=35,2/5=7,4
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Answers & Comments
x+y=44
х/5=4y/5 умножим на 5
x+y=44
x=4y подставим в первое уравнение
4у+у=44 5у=44 у=44/5=8,8 x=4y=4*8,8=35,2
проверка 35,2+8,8=44 35,2/5=7,4 4*8,8/5=35,2/5=7,4