A traffic light changes every 30 seconds another traffic light changes every 40 seconds both lights just changed after how money minutes wil

Question

A traffic light changes every 30 seconds another traffic light changes every 40 seconds both lights just changed after how money minutes will both lights change at the same time

in progress 0
Verity 4 years 2021-09-01T15:28:32+00:00 1 Answers 17 views 0

Answers ( )

  1. Jezebel
    0
    2021-09-01T15:29:34+00:00
    Reply

    Answer:

    120 seconds/2 minutes

    Step-by-step explanation:

    You need to find the LCM of 30 and 40 which is 120.

Leave an answer

Browse

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