Toán Lớp 5: Tìm y : d ) y : 0,4

y : 0,4 - y : 0,5 = 1,2 y × ( 5/2 - 2 ) = 1,2 y × 1/2 = 1,2 y = 1,2 : 1/2 y = 12/5 Vậy y = 12/5

y:0,4-y:0,5=1,2 y: 2/5 - y: 1/2=6/5 y xx 5/2 - y xx 2=6/5 yxx(5/2-2)=6/5 y xx (5/2-4/2)=6/5 y xx 1/2 = 6/5 y=6/5 : 1/2 y=6/5 xx 2 y=12/5 Vậy y=12/5

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Toán Lớp 5: Tìm y : d ) y : 0,4 – y : 0,5 = 1,2