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1 November, 16:04

How did the temperature change if: at first it increased by 5% and then increased by 20%

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Answers (2)
  1. 1 November, 16:13
    0
    26%

    Step-by-step explanation:

    There was not a given number, so I chose 100.

    It was increased by 5%, so now our number is 105.

    It is increased by 20% now.

    20% of 105 is 21.

    Now I add 21 to 105 and get 126.

    126-100 = 26,

    so it was increased by 26%
  2. 1 November, 16:29
    0
    It increased by 20.6%

    Step-by-step explanation:

    Since a temperature was not provided, I chose a random number: 5. I then increased it by 5% & then again by 20%. Then compared the resulting temperature to the original temperature to see how much it had increased by overall.

    5*.05=.25

    5+.25=5.25

    5.25*.20=1.05

    5.25+1.05=6.3

    5/6.3=.794

    The original temperature (5) was 79.4% of the temperature after increase (6.3). Meaning it raised by 20.6%

    (100-79.4=20.6)

    I'm not sure if this is how your teacher would like you to solve it, but this is how I solved it.
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