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wolverine [178]
3 years ago
12

Erika’s toy ski chalet is valued at €450. Its value increases by 10% then decreases by 10% the year after. What is the value of

Erika’s toy after these two changes?
Mathematics
1 answer:
Musya8 [376]3 years ago
7 0

Answer:

€445.5

Step-by-step explanation:

First we calculate the increase percentage and the increase.

Increase = 450 + (10%*450)

Now we must calculate the percentage of the increase.

Increase percentage = 10% of €450 = 450*0.1 = 45

Increase = 450 + 45 = €495

Since the decrease happens to the <em>new </em>number, the decrease and the decrease percentage <em>both </em>must be to the new changed number, which is 495

Decrease = 495 - (10%*495)

Again we must calculate the percentage of the decrease.

Decrease percentage = 10%*495 = 0.1*495 = 49.5

Decrease = 495 - 49.5 = 445.5

So, the value of Erika's ski chalet after the two changes = €445.5

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Answer:

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1 2 3 4 5 6 7 8 9 10

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25 + 31 + 37 = 93

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3 years ago
In the triangle above, what is sin A
Shkiper50 [21]

Answer:

\large\boxed{\sf sin(A)=0.5}

Step-by-step explanation:

A right angled triangle is given to us and we would like to find out the value of sin(A) .

From the triangle we can see that the measure of angle BAC is 30° . Therefore ,

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Simplify by converting it into decimal ,

\longrightarrow \underline{\underline{sin(A) = 0.5}}

<u>Hence</u><u> </u><u>option</u><u> </u><u>B</u><u> </u><u>is</u><u> </u><u>correct</u><u> </u><u>.</u>

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2 years ago
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navik [9.2K]

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Answer:

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Step-by-step explanation:

An irrational number can be defined as real numbers that cannot be expressed as a simple fraction or ratio of two integers.

Additionally, it is the opposite of a rational number and as such its decimal is continuous without having any repetition or termination. For example, pie (π) = 3.14159 is an example of an irrational number.

Assuming the solution to a mathematical problem is an irrational number. The statement which is true about the solution is that it can be expressed as a non-repeating, and non-terminating decimal.

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Step-by-ste:p explanation:

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Step-by-step explanation:

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