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3 years ago

Solve for and in the following simultaneous equations below; 5x−4y=8 and 2x+y=11.

Mathematics

2 answers:

lorasvet [3.4K]3 years ago

7 0

Answer:

x=4 and y=3

Step-by-step explanation:

put one of the equations in slope form and solve

DanielleElmas [232]3 years ago

3 0

Answer:x=4 y=3

Step-by-step explanation:

5x-4y=8.............(1)

2x+y=11................(11)

From (11) y=11-2x

Substitute y=11-2x in 5x-4y=8

5x-4y=8

5x-4(11-2x)=8

Open bracket

5x-44+8x=8

Collect like terms

5x+8x=8+44

13x=52

Divide both sides by 13

13x/13=52/13

x=4

Substitute x=4 in 2x+y=11

2(4)+y=11

8+y=11

Collect like terms

y=11-8

y=3

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2 years ago

What is the perimeter of a polygon with vertices at (−2, 1) , (−2, 4) , (2, 7) , (6, 4) , and (6, 1) ?

alekssr [168]

First we need the distances of the sides of the polygon, because perimeter = sum of all sides.
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2 years ago

Read 2 more answers

PLEASE help. The problem is to find the indicated sum.

alukav5142 [94]

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Hope this helps.

8 0

2 years ago

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solniwko [45]

Hmmm, I'm guessing your asking if that's correct, if so, yes

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2 years ago