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3 years ago

-2x+5y=40 3x-2y= -5 Solve by using guassion elimination method

Mathematics

1 answer:

kolezko [41]3 years ago

6 0

solve simultaneously

Step-by-step explanation:

make one of the equations x subject of the formula and the other equation y subject of the formula

y=8+2/5x....1

x=-5/3 + 2/3y.....2

substitute equation 1 into equation 2

x=5

y=10

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4 years ago

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3 years ago

A Best Eastern Motel is a regional motel chain. Its rooms rent for $90 per night, on average. The variable cost is $40 a room pe

Vlad1618 [11]

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Step-by-step explanation:

This is quite simple to solve,

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4 0

3 years ago

Read 2 more answers

In circle O, ST is a diameter.

Andreas93 [3]

The value of x must be 25.0. The correct option is the second option- 25.0

<h3>Solving Linear equations </h3>

From the question, we are to determine the value of x

From the given diagram, we can write that

m ∠SOR + m ∠UOR + m ∠TOU = 180° (<em>Sum of angles on a straight line</em>)

∴ (2x +8)° + (3x - 14)° + (3x -14)° = 180°

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8x° = 180° + 20°

8x° = 200°

x = 200/8

x = 25.0

Hence, the value of x must be 25.0. The correct option is the second option- 25.0

Learn more Solving linear equations here: brainly.com/question/1413277

#SPJ1

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3 years ago

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Snowcat [4.5K]

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Step-by-step explanation:

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3 years ago