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melamori03 [73]
3 years ago
8

What does this mean 100 decreased by 77 mean

Mathematics
1 answer:
Daniel [21]3 years ago
5 0

Answer: It just means 100 - 77% which equals to 23%.

Decreased means reduced or basically taking away a percentage of something. In this case it's numbers in math.

Hope this helps!

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Help would be appreciated. Thanks!
Elena-2011 [213]

Answer:

unknown at the moment....

Step-by-step explanation:

I haven't worked out the answer myself but here are the steps to follow for you to find out the answer.

First step is to find the angle of 'A'. Do this by using the <em>cosine rule</em> on the smaller triangle.

Formula for this is;

cos(A) = <u>b2 + c2 – a2</u>

                             2bc

Second Step is to find the length between AC. Do this by using the <em>Sine Rule</em> on the large triangle as a whole.

Formula for this is;

<u>     a    </u> =  <u>    b      </u> = <u>     c      </u>

Sin(A)        Sin(B)      Sin(C)

Label the large triangle as CA=b and CB=a

This is so you have the length and angles of all parts but the one section in which you're trying to find, this should be the basis of your sine formula but fill in the angle of 'A' which you found before.

<u>  65m    </u> =  <u>    b      </u>

Sin(A)         Sin(68°)

now get 'b' by itself

<u>   65m (Sin(68°))</u>  =  b

        Sin(A)      

Third step. Now that you have the length of b or AC, minus the length 27m to find the length of CD.    

Hope this helps :)

7 0
3 years ago
Answer the questions about the following sets: D = {x | x is a person allergic to dogs}; C = {x | x is a person allergic to cats
Amiraneli [1.4K]

Answer:

1-22 2-1 3-7 4-18

Step-by-step explanation:

Did on edg

7 0
3 years ago
What is the common denominator of 6/7 - 1/3
notsponge [240]

Answer:

its the  3 to second work so 1403424555

Step-by-step explanation:

ik it cus im smart

3 0
3 years ago
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Over the next week you want to watch a movie a day. In how many ways can this be done if you have 8 movies
Leto [7]
<span>You can select from any of the 8 on the first day, leaving 7 to choose from on the second day, leaving 6 for the third. So, 8 x 7 x 6 x 5 x 4 x 3 x 2 or 8! That's 8factorial, so multiply those out or use a calculator to get 8! and that is your answer.</span>
7 0
4 years ago
Read 2 more answers
if mary earns $247.25 for gardening. if she worked 21.5 hours this month, then how much did she earn per hour?
N76 [4]
She earned 11.5 per hour! And we know this because 247.25 divided by 21.5 = $11.5 per hour ( hope this helps:)
5 0
3 years ago
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