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Troyanec [42]
3 years ago
10

I need help on this question

Mathematics
1 answer:
viva [34]3 years ago
8 0

Hi!

The line of symmetry is a line that has equal parts of the shape on both sides of it.

Look at the shape. Is there a place where you can put a line that divides it in half? Or will one part of it still be unequal?

I included an image that shows the line of symmetry. Note how the halves of the triangle on both sides of the line are equal.

The line of symmetry is x = 3

Hope this helps! :)

-Peredhel

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30% of number A is 10 more than 20% of number B. 30% of number B is 35 more than 20% of number A. Find the numbers A and B.
anygoal [31]

Answer:

A = 76.85

B =65.28

Step-by-step explanation:

(30/100)A = 10 + (20/100)B

0.3A - 0.2B = 10 ...... equation (i)

(30/100)B + 35 = (20/100)A

0.2A - 0.3B = 35 ........ equation (ii)

From equation (i)

0.3A = 10 - 0.2B

A = (10 - 0.2b) / 0.3

A = 33.33 - 0.67B ........equation (iii)

Put equation (iii) into equation (ii)

0.2(33.33 - 0.67B) - 0.3B = 35

6.67 - 0.134B - 0.3B = 35

0.434B = 35 - 6.67

B = 28.33 / 0.434

B = 65. 275 = 65.28

Put B = 65.28 into equation (i)

0.3A - 0.2B = 10

0.3A - 0.2(65.28) = 10

0.3A - 13.056 = 10

0.3A = 10 + 13.056

A = 23.056/ 0.3

A = 76.85

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3 years ago
The percent of fat calories that a person in America consumes each day is normally distributed with a mean of about 36 and a sta
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The answer is definitely most certain in the whole entire world is 5760 percent of fat calories 
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18+57= 75

Step-by-step explanation:

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X=3
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