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Liza16like
@Liza16like
July 2022
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сумма двух чисел равна 85 найти их зная что одно 3/4 равны 2/3 другого ПОМОГИТЕ!!!!ЗАЙКИИИИ!!!
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Пусть первое число х, а второе у. Составим систему уравнений:
3/4(85 - y) = 2/3y
63,75 - 3/4y = 2/3y
2/3y + 3/4y = 63,75
8/12y + 9/12y = 63,75
17/12y = 63,75
y = 63,75 : 17/12
y = 63,75 * 12/17
y = 45
Ответ: 40 и 45.
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Answers & Comments
3/4(85 - y) = 2/3y
63,75 - 3/4y = 2/3y
2/3y + 3/4y = 63,75
8/12y + 9/12y = 63,75
17/12y = 63,75
y = 63,75 : 17/12
y = 63,75 * 12/17
y = 45
Ответ: 40 и 45.