Matematika

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Tolong bantu jawab. Soal TPA USM STAN 2017
Tolong bantu jawab. Soal TPA USM STAN 2017

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  • 42) s/(4q) - p/(3r)=((3rs)-(4pq))/(12qr)
    (3r)/q-(4r/s)=((3rs)-(4pq))/(qs)
    (12r)/s=(((3rs)-(4pq))/(qs))/(((3rs)-(4pq))/(12qr))=24/9
    r/s=24/12*9=2/9 (B)
    43) 28p+42q=14(2p+3q)=14(9/4)=31,5 (D)

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