smuhaab smuhaab
  • 23-07-2020
  • Mathematics
contestada

How did the temperature change if: at first it decreased by 60 % and then increased by 80% ?

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wegnerkolmp2741o
wegnerkolmp2741o wegnerkolmp2741o
  • 23-07-2020

Answer:

28% decrease

Step-by-step explanation:

If we decrease by 60%, we are keeping 100-60 = 40%

Let x be the original amount

decrease by 60% = keep 40%

.40 x

If we increase by 80%, we are keeping 100+80 = 180%

(.40x) * 180%

.40x * 1.80

.72x

Take .72 times the original amount

100 - .72 = 28

It decreased 28 %

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twinklingrubies
twinklingrubies twinklingrubies
  • 10-12-2020

Answer:

28% decrease

Step-by-step explanation:

Answer Link

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