A square picture with a side length of 30 cm is scaled by 60% on a photocopier. The copy is then scaled by 60% again. What is the side lengt

Question

A square picture with a side length of 30 cm is scaled by 60% on a photocopier. The copy is then scaled by 60% again. What is the side length of the picture after it has been successively scaled by 60% 4 times?

in progress 0
MichaelMet 4 years 2021-08-04T22:46:15+00:00 1 Answers 405 views 0

Answers ( )

  1. taiduc
    -1
    2021-08-04T22:47:24+00:00
    Reply

    Answer:
    10.8 cm

    Step-by-step explanation:
    we know that
    1) A square picture with side length 30 cm is scaled by 60% on a photocopier
    Remember that
    60% =60/100 = .60

    so The length of the first copy of the picture is
    30(.60) = 18

    2) The copy is then scaled by 60% again
    so
    The length of the second copy of the picture is
    18(.60)=10.8 cm

Leave an answer

Browse

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