if 5 hours = 40 $ and 6 hours =48 $ and 8 hours = 64 $ then what does ? hours = 56 $ what the missing number

Question

if 5 hours = 40 $
and 6 hours =48 $
and 8 hours = 64 $
then what does ? hours = 56 $

what the missing number

in progress 0
Trúc Chi 3 years 2021-07-25T20:01:29+00:00 1 Answers 9 views 0

Answers ( )

  1. Ladonna
    0
    2021-07-25T20:02:46+00:00
    Reply

    Answer:

    7 hours

    Step-by-step explanation:

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