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dalvyx [7]
2 years ago
5

Pls answer..............

Mathematics
2 answers:
-Dominant- [34]2 years ago
8 0
B is the right answer I think!
nexus9112 [7]2 years ago
6 0

Answer:

b is correct

Step-by-step explanation:

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Solve the simultaneous equation:<br> 5 x + 2 y = 25 <br> 5 x − y = 10
Liono4ka [1.6K]

Answer:

(x, y) = (3, 5)

Step-by-step explanation:

5x+2y=25\\5x-y=10

Solving by elimination here again, there are 2 good options available. Either multiply the whole bottom equation by -1 to cancel the x, or by 2 to cancel the y. I'll do the latter:

5x+2y=25\\\\2(5x-y=10)\\10x-2y=20

Add from top to bottom:

\rightarrow (5x+10x)+(2y-2y)=25+20\\\rightarrow 15x=45\\\rightarrow x=3

Now, with the value of x, solve for y in either of the equations. I'll choose the second one here:

\rightarrow 5x-y=10\\\rightarrow 5(3)-y=10\\\rightarrow 15-y=10\\\rightarrow -y=-5\\\rightarrow y=5

(x, y) = (3, 5)

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Answer:

Choice 3

Step-by-step explanation:

The reading rate of Sam is 0.75 pages/minute.

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The reading rate of Bill is 0.5 pages/minute

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The reading rate of Leroy is 0.75 pages/minute which is the same as Sam's.

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3 years ago
Base Angle of an isosceles trapeziod are A.supplementary B.complementary C.congruent D.adjacent?
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Answer:

Congruent

Step-by-step explanation:

by definition, the base angles of an isosceles triangle are the same value.

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