Mathematics
01.10.2020 23:53
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The selling price of an apartment dropped from 250,000 to 225,000. By What percent

The selling price of an apartment dropped from 250,000 to 225,000. By What percent did the price drop?
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NijaNij
NijaNij
4,6(21 marks)

10%

Step-by-step explanation:

The percentage decrease in price = \frac{decrease amount}{original amount} x 100%

Original amount = 250,000

New amount = 225,000

Decrease in amount = 250,000 - 225,000

                        = 25,000

So that;

Percentage decrease in price = \frac{25000}{250000} x 100%

                                           = 0.1 x 100%

Percentage decrease in price = 10%

The price of the apartment dropped by 10% of its original price.

myamiller558
myamiller558
4,7(19 marks)

\text{cos}(M)=\frac{19}{20}

Step-by-step explanation:

Please find the attachment.  

We have been given that in right triangle LMN, L and M are complementary angles and \text{sin}(L)=\frac{19}{20}. We are asked to find the \text{cos}(M).

We know that sine relates opposite side of right triangle to hypotenuse.

\text{sin}=\frac{\text{Opposite}}{\text{Hypotenuse}}

We also know that cosine relates adjacent side of right triangle to hypotenuse.

\text{cos}=\frac{\text{Adjacent}}{\text{Hypotenuse}}

We can see from the attachment that LM is hypotenuse and MN is adjacent side of our given triangle.

\text{cos}(M)=\frac{19}{20}

Therefore, \text{cos}(M) is \frac{19}{20} as well.


In right traingle lmn, l and m are complementary angles and sin(l) 19/20 is . what is cos(m)?

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