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A mathematics test took 45 minutes. How much was this time in seconds? Children went out for 9:30 minutes break. How much was this time in seconds?

Mathematics

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2 parts
1

2700 sekunde\text{2700 sekunde}

2

570 sekunde\text{570 sekunde}

Step-by-step solution

6 steps

Haya Muthomi, niko hapa kukusaidia na kazi yako ya nyumbani.

Part 1· 2 steps

Mtihani wa hisabati ulichukua dakika 45. Muda huu ulikuwa sekunde ngapi?

Ili kubadilisha dakika kuwa sekunde, tunajua kuwa dakika 1 ina sekunde 60.

  1. Tambua muda uliotolewa kwa dakika.

    Muda = 45 dakika.

  2. Badilisha dakika kuwa sekunde kwa kuzidisha kwa 60.

    45 dakika×60sekundedakika45 \text{ dakika} \times 60 \frac{\text{sekunde}}{\text{dakika}} 45×60=2700 sekunde45 \times 60 = 2700 \text{ sekunde}

    Muda wa mtihani kwa sekunde ni:

    2700 sekunde\boxed{\text{2700 sekunde}}

Part 2

570 sekunde\text{570 sekunde}

Katika Shule ya Msingi ya Lipe, watoto walitoka kwa mapumziko ya dakika 9:30. Muda huu ulikuwa sekunde ngapi?

Hapa, "dakika 9:30" inamaanisha dakika 9 na sekunde 30, au dakika 9.5. Tutabadilisha muda huu wote kuwa sekunde.

  1. Tambua muda uliotolewa.

    Muda = 9:30 dakika, ambayo ni sawa na dakika 9.5.

  2. Badilisha dakika 9 kuwa sekunde.

    9 dakika×60sekundedakika=540 sekunde9 \text{ dakika} \times 60 \frac{\text{sekunde}}{\text{dakika}} = 540 \text{ sekunde}

  3. Ongeza sekunde zilizobaki.

    Sekunde zilizobaki ni 30.

  4. Jumlisha sekunde zote.

    540 sekunde+30 sekunde=570 sekunde540 \text{ sekunde} + 30 \text{ sekunde} = 570 \text{ sekunde}

    Muda wa mapumziko kwa sekunde ni:

    570 sekunde\boxed{\text{570 sekunde}}
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