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3 years ago

3.25x-1.5y=1.25 13x-6y=10

Mathematics

2 answers:

Kaylis [27]3 years ago

4 0

Step-by-step explanation:

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '1.5y' to each side of the equation.

3.25x + -1.5y + 1.5y = 1.25 + 1.5y

Combine like terms: -1.5y + 1.5y = 0.0

3.25x + 0.0 = 1.25 + 1.5y

3.25x = 1.25 + 1.5y

13x + -6y = 10

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '6y' to each side of the equation.

13x + -6y + 6y = 10 + 6y

Combine like terms: -6y + 6y = 0

13x + 0 = 10 + 6y

13x = 10 + 6y

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Anna11 [10]3 years ago

3 0

Simplifying
3.25x + -1.5y = 1.25

Solving
3.25x + -1.5y = 1.25

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '1.5y' to each side of the equation.
3.25x + -1.5y + 1.5y = 1.25 + 1.5y

Combine like terms: -1.5y + 1.5y = 0.0
3.25x + 0.0 = 1.25 + 1.5y
3.25x = 1.25 + 1.5y

Divide each side by '3.25'.
x = 0.3846153846 + 0.4615384615y

Simplifying
x = 0.3846153846 + 0.4615384615y

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3 years ago

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1.
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3 years ago

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Brrunno [24]

Answer:

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Step-by-step explanation:

Correct answer = 18

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Let there are x questions in the test. So,

According to the given condition,

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3 years ago

A regular assignment has 15 sides.Calculate the size of each interior angle

MariettaO [177]

Answer:

The measure of an interior angle of a regular 15-gon is 120°.

Step-by-step explanation:

We need to determine the measure of the size of an interior angle of a regular 15-gon having 15 sides.

Thus,

The number of sides n = 15

Hence,

Using the formula to determine the measure of an interior angle of a regular 15-gon is given by

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substitute n = 15

(15 - 2) × 180 = 15 × interior angle

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3 years ago

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vlabodo [156]

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3 years ago