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Ilia_Sergeevich [38]
3 years ago
14

A man buys a book for Rs 400 and sells it for Rs 420 his profit is​

Mathematics
2 answers:
motikmotik3 years ago
6 0

Answer:

20

Step-by-step explanation:

420-400=20

Bogdan [553]3 years ago
4 0
Answer:
20 Rs

Explanation:

Buys for :400 Rs
Sells for:420 Rs

Work :

420-400=20 Rs in profit
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Nezavi [6.7K]

Answer:

The area of the triangle is of 21 units of area.

Step-by-step explanation:

The area of a triangle with three vertices (x_1,y_1),(x_2,y_2),(x_3,y_3) is given by the determinant of the following matrix:

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In this question:

Vertices (3,0) (9,0) (7,6). So

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5 0
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Answer:

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Step-by-step explanation:

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