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gizmo_the_mogwai [7]
3 years ago
9

If (A:20:4:16) is a proportion the find out the value of A fastly​

Mathematics
1 answer:
vladimir2022 [97]3 years ago
6 0

Answer: A = 5

Step-by-step explanation:

I'll rewrite this as fractions.

\frac{A}{20}=\frac{4}{16}

Solve for A,

A=\frac{20*4}{16}\\ A=\frac{80}{16}

A=5

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Segment NO is parallel to the segment KL.

Solution:

Given KLM is a triangle.

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It clearly shows that NO is the mid-segment of ΔKLM.

By mid-segment theorem,

<em>The segment connecting two points of the triangle is parallel to the third side and is half of that side.</em>

⇒ NO || KL and NO = \frac{1}{2}KL

Therefore segment NO is parallel to the segment KL.

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3 years ago
You buy books for 64 cents each, you plan to sell them for 75 cents each. You're left with 100 unsold books, and you lost $12. H
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The number of books sold is 473.

<u>Step-by-step explanation:</u>

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The difference between the original price and selling price of the book gives the profit per book.

The profit of one book = Selling price - Original price

Let,

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Therefore, the equation is formed as

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0.75y - 64 -0.64y = -12

0.11y = -12 +64

y = 52 / 0.11

y = 472.7

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The number of book sold is 473 books.

The total number of books is (100+473) = 573 books.

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