school has 8 periods a day each of 45 minutes’ duration. How long would each period be, if the school has 9 periods a day, assuming the numb

Question

school has 8 periods a day each of 45 minutes’ duration. How long would each period be, if the school has 9 periods a day, assuming the number of school hours to be the same?

in progress 0
Linh Đan 7 months 2021-07-16T21:38:04+00:00 1 Answers 1 views 0

Answers ( )

    0
    2021-07-16T21:39:54+00:00

    Answer:

    40 min per period

    Step-by-step explanation:

    When it has 8 periods :

    Total time = 45 min per period for 8 period

    Total time = 45 × 8 min

    When it has 9 periods : let each period be of x min

    Total time = x min per period for 9 period

    Total time = x × 9 min

    As total time remains same,

    45 × 8 = x × 9

    5 x 8 = x

    40 = x

Leave an answer

Browse

Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )