3 years ago

Solve by substitution x - 2y = 10 1/2x - 2y = 4

Mathematics

1 answer:

mars1129 [50]3 years ago

5 0

Answer:

ypu can do this by using this please vote

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3 years ago

What is the area of this irregular shape and how do I work it out?

Brilliant_brown [7]

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17cm²

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2 years ago

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lesya [120]

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3 years ago

What is the positive angle less than 2π that is coterminal with 14π/6

Dahasolnce [82]

Coterminal angles are angles that are made by the positive x-axis of the coordinate plane. The positive angle that is less than 2π and is coterminal with 14π/6 is 1/3π.

<h3>What are coterminal angles?</h3>

Coterminal angles are angles that are made by the positive x-axis of the coordinate plane.

The angle that 14π/6 makes from the positive x-axis is 1/3π, which is equal to 60°.

Hence, the positive angle that is less than 2π and is coterminal with 14π/6 is 1/3π.

Learn more about Coterminal Angle:

brainly.com/question/23093580

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3 0

1 year ago

Solve the simultaneous equations by substitution 3 x − 7 y = − 10 x = 5 y + 2

mojhsa [17]

Answer:

$3x-7y=-10_{(1)} \\x=5y+2_{(2)}\\$

Substituting Equation 2 into equation 1

$3(5y+2)-7y=-10_{(3)} \\15y+6-7y=-10\\15y-7y+6=-10\\8y+6=-10\\8y=-10-6\\8y=-16\\y=\frac{-16}{8} \\y=-2\\$

Substitute the value of y into Equation 2

$x=5y+2\\x=5(-2)+2\\x=-10+2\\x=-8\\$

Therefore x=-8, y=-2

Step-by-step explanation:

Have a nice day :)

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2 years ago