a) What step I messed up on? b) What should I have done at that step instead? c) What is the correct simplified answer

Question

a) What step I messed up on?

b) What should I have done at that step instead?

c) What is the correct simplified answer?
show your work

1) 150 : 60

2) 100 : 10

3) 50 : 2

4) 25 : 1

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Diễm Kiều 5 years 2021-09-03T23:05:38+00:00 1 Answers 9 views 0

Answers ( )

  1. thanhcong
    0
    2021-09-03T23:07:33+00:00
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    Answer:

    2.5 : 1

    Step-by-step explanation:

    (1) 150 : 60 ← divide both parts by 10

    (2) 15 : 6 → ( not 100 : 60) ← divide both parts by 3

    (3) 5 : 2 ← divide both parts by 2

    (4) 2.5 : 1

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