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A perfect house draws diverse lines by which it-on which is the the first hour?

Mathematics

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Answer

t≥3t \ge 3

Step-by-step solution

2 steps

Swali la 7

Swali linasema: "Akiayi anahitaji angalau masaa 3 kukamilisha kazi. Acha muda uliotumika na Akiayi kukamilisha kazi uwe 't' masaa. Ni ipi kati ya usawa ufuatao inawakilisha kauli hiyo?"

"Angalau masaa 3" inamaanisha kuwa muda uliotumika, 't', lazima uwe sawa na masaa 3 au zaidi.

  1. Tafsiri kauli hiyo kuwa usawa.

    Kauli "angalao masaa 3" inamaanisha kuwa tt ni kubwa kuliko au sawa na 3.
    Hii inaweza kuandikwa kama:

    t≥3t \ge 3
  2. Linganisha na chaguzi zilizotolewa.

    Kutokana na chaguzi zinazoonekana kwenye picha, chaguo linalolingana na t≥3t \ge 3 ni D.

    Jibu: D. t≥3\boxed{t \ge 3}

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