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trasher [3.6K]
3 years ago
15

In a sale all prices are reduced by 10% .What is the sale price of an article marked AED 75.

Mathematics
1 answer:
rusak2 [61]3 years ago
5 0

Answer:

67.5

Step-by-step explanation:

  1. When you calculate the 10% of AED75, it is equal to AED7.5
  2. Then you subtract AED7.5 from AED75 which is AED67.5
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Answer:

Option (1)

Step-by-step explanation:

Given equation is,

2^x=1-3^x

To determine the solution of the equation we will substitute the values of 'x' given in the options,

Option (1)

For x = -0.75

2^{-0.75}=1-3^{-0.75}

0.59 = 1 - 0.44

0.59 = 0.56

Since, values on both the sides are approximately same.

Therefore, x = -0.75 will be the answer.

Option (2)

For x = -1.25

2^{-1.25}=1-3^{-1.25}

0.42 = 1 - 0.25

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Therefore, x = -1.25 is not the answer.

Option (3)

For x = 0.75

2^{0.75}=1-3^{0.75}

1.68 = 1 - 2.28

1.68 = -1.28

Which is not true.

Therefore, x = 0.75 is not the answer.

Option (4)

For x = 1.25

2^{1.25}=1-3^{1.25}

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2.38 = -2.95

It's not true.

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