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Natalka [10]
3 years ago
13

Please help me with these 2 problems

Mathematics
1 answer:
blsea [12.9K]3 years ago
5 0
Hello!

Elimination is where you add or subtract two equations to get rid of a variable

(5x + 5y = -5) + (5x - 5y = 25)

This gives us 10x = 20

Divide 10 from both sides

x = 2

We can put x in to one of the original equations to get y

5(2) + 5y = -5

Combine like terms

10 + 5y = -5

Subtract 10 from both sides

5y = -15

divide both sides by 5

y = -3

The answer to the first one is (2, -3)

For the second one we can subtract the equations

(2x - 3y = 0) - 2x + y = 8

This gives us 4y = 8

Divide by 4 on both sides

y = 2

We can put y into one of the original equations to get x

2x + 2 = 8

subtact 2 from both sides

2x = 6

Divide both sides by 2

x = 3

The answer to the second one is (3,2)

Hope this helps!
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<h3>What is curved surface area?</h3>

The region with just curved surfaces, leaving the circular top and base, is referred to as the curved surface area. Total Surface Area is the combined area of the bases and the curved surface. The measurement of a solid's curved surface area is its outer area, which excludes the top and bottom extensions. Surface area of the cylinder that is curved: A right circular cylinder is the solid that results when a rectangle circles around one side and makes a full revolution. The curved surface area of a cylinder (CSA) is also known as the lateral surface area and is defined as the area of the curved surface of any given cylinder having a base radius "r" and height "h".

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