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3 years ago

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Which of the following is not a solution to the system of linear equations below? 5y=3x+15 6x=10y-30 A. (5, 6) B. (–15, 12) C. (

0, 3) D. (–10, –3)

1 answer:

Alecsey [184]3 years ago

7 0

Option B is not a solution.

5y=3x+15
5(12)=3(-15)+15
60=-45+15
60≠-30

Hope I didn't mess up for your sake!

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Two angles are supplementary. The measure of one angle is 4 times the measure of the other angle. What is the measure of the sma

Alexus [3.1K]

ANSWER

The smaller angle is

$y = 36 \degree$

.EXPLANATION

Let the angles be
$x \: and \: \: y$

where y is the smaller angle.
Since they are supplementary, they will add up to 180°.

This implies that,

$x + y = 180 \degree...(1)$

If one angle is 4 times the other, we can then write the following equation,

$x = 4y...(2)$

We put equation (2) into equation (1) to get,

$4y + y = 180 \degree$

$5y = 180 \degree$

We divide through by 5 to obtain,

$y = 36 \degree$

This implies that,

$x = 4(36)$

$x = 144 \degree$

3 0

3 years ago

HELP PLEASE!!! EASY I just haven't done algebra in a while so I forgot lol.

ElenaW [278]

Answer:

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Step-by-step explanation:

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3 years ago

Read 2 more answers

I dont get it plzzz help me

cricket20 [7]

Given Equation: $\frac{1}{3}h-4(\frac{2}{3}h-3)=\frac{2}{3}h-6$

Let us remove parenthesis first.

In order to remove parenthesis, we need to distribute -4 over parenthesis (2/3 h -3).

Distributing -4 over (2/3 h -3), we get,

-4*2/3 h - 4*-3 = -8/3 h + 12.

Substituting this value in original equation, we get

$\frac{1}{3}h-\frac{8}{3}h+12 =\frac{2}{3}h-6$

Now, in order to make the equation easy to solve, we always remove fractions. In order to remove fraction, we need to find the lowest common denominator of all terms(lcd).

The fraction terms has 3 in denominators, so we could multiply each and every term by 3 to remove 3's from denominators.

Multiplying each equation by 3, we get,

$3*\frac{1}{3}h-3*\frac{8}{3}h+3*12 =3*\frac{2}{3}h-3*6$

On simplfying this step, we get

$1h -8h+36=2h-18$

Combining like terms on left side, we get

-7h +36 = 2h -18.

Subtracting 36 from both sides, we get

-7h +36 -36= 2h -18-36.

-7h=2h-54

Subtracting 2h from both sides, we get

-7h-2h=2h-54-2h

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Dividing both sides by -9.

-9h/-9 = -54/-9

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Therefore, final answer is h=6.

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Answer:

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