Question

Helphelphelphelp

i need help quick
whoever answers this first..
i will give them 100 points

Answer 1

19%

Explanation:

• let's start from 100 and remove 10%

100 - 100/10 = 90

• let's take 10% off again

90 - 90/10 = 91

• find the difference between 100 and 81

100 - 81 = 19%

for a better understanding look at the figure

Answer 2

Decreased by 19%.

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Decrease by of x 10% can be shown as a product of x and:

• 100% - 10% =
• 90% =
• 0.9

Same applies to the second decrease, then we get a final number:

• x*0.9*0.9 = 0.81 x

It represent a one off decrease of:

• 1 - 0.81 =
• 0.19 =
• 19%

Hence the answer is 19%.