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Vsevolod [243]
3 years ago
11

Solve the following system of equations. -7x +4y = 10 -5x +3y = 8 x= y=

Mathematics
1 answer:
Virty [35]3 years ago
4 0

Answer:x=2

              y=6

Step-by-step explanation:

-7*x+4*y=10

     ║minus

-5*x+3*y=8

----------------

-2*x+y=2

y=2+2*x

-------------

-5*x+3*(2+2*x)=8

-5*x+6+6x=8

x=8-6

x=2

-------------------------

-7*2+4*y=10

4*y=10+14

4*y=24

y=24/4

y=6

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Pls answer 18 20 and 22 show your work
Svetlanka [38]

Answer:

18- 300

20- 1,500

22- 300

Step-by-step explanation:

You can easily find the answer like this:

18. Multiply 60 and 100 together. The hundred is from 100%. After that, divide it by 20 because of the percent. After doing this, you should get 300.

20. 360*100=36,000 36,000/24= 1,500

22. 9*100=900 900/3=300


I hope this is what you were looking for. If you need more out of this, ask me to answer it again. :)

5 0
3 years ago
Find the area of a triangle and semi circle where the diameter is 18 and the height is 14 using 3.14
Readme [11.4K]

Answer:

triangle A= 1/2bh

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2 years ago
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DedPeter [7]

Answer:

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8 0
3 years ago
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Answer:

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Answer

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Step-by-step explanation:

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