Matematika

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please bantu, 7,8,9,10
please bantu, 7,8,9,10

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  • 7.r:f:t=8:3:10
    r-t=4
    r=8/(10-8)×4=16th
    t=16-4=12th
    f=3/8×16=6th
    jumlah=16+12+6=34th
    8.14cm÷70m=1÷5000
    10.yg a

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