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3 years ago

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Solve for X &Y 2x-3y=8 2x+3y=4

1 answer:

aleksandrvk [35]3 years ago

5 0

1. Since 2x2x does not contain the variable to solve for, move it to the right side of the equation by subtracting 2x2x from both sides.−3y=−2x+8-3y=-2x+8Divide each term by −3-3 and simplify.
Divide each term in −3y=−2x+8-3y=-2x+8 by −3-3.<span><span>−3y−3=−2x−3+8−3</span><span>-3y-3=-2x-3+8-3</span></span>Simplify the left side of the equation by canceling the common factors.
<span><span>y=−<span>2x−3</span>+<span>8−3</span></span><span>y=-<span>2x-3</span>+<span>8-3</span></span></span>Simplify each term.
y=<span><span>2x</span>3</span>−<span><span>83

Sorry i only knew the first one </span></span>

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Use the figure to find the angle m

nordsb [41]

Answer:

Measure of angle M = 41°

Step-by-step explanation:

From the figure attached,

NM ≅ NO [Given]

Therefore, ∠O ≅ ∠M [Opposite angle of the equal sides]

By triangle sum theorem,

m∠O + m∠N + m∠M = 180°

m∠O + m∠N + m∠O = 180° [Since, ∠M ≅ ∠O]

By substituting the values of the given angles,

(4y - 15)° + (7y)° + (4y - 15)° = 180°

(15y - 30) = 180

15y = 210

y = 14

Therefore, m∠M = (4y - 15)°

= 4(14) - 15

= 56 - 15

= 41°

6 0

3 years ago

Choose the formula for the volume of a rectangular box, V = lwh written in terms of w.

lilavasa [31]

The width of the rectangular box will be 8cm

Given that the formula for calculating the volume of a rectangular box is expressed as:

$V=lwh$

L is the length

w is the width

h is the height

Get the "value of "w

$V = lwh\\w=\frac{V}{lh}$

Given the following parameters

Length l = 3 cm

Volume V = 120cm³

Height = 5cm

Get the width of the box as shown:

$w=\frac{V}{lh}\\w=\frac{120}{3\times 5}\\w=\frac{120}{15}\\w= 8cm$

Hence the width of the rectangular box will be 8cm

Learn more here: brainly.com/question/20415942

4 0

3 years ago

Need help putting the answer in

Hitman42 [59]

Step-by-step explanation:

We can rewrite the given equation as

$x^2 + \frac{1}{5}x - \frac{12}{25} = (x + \frac{4}{5})(x - \frac{3}{5})$

As a check, let's multiply out the factors:

$(x + \frac{4}{5})(x - \frac{3}{5}) = x^2 - \frac{3}{5}x + \frac{4}{5}x - \frac{12}{25}$

$= x^2 + \frac{1}{5}x - \frac{12}{25}$

and this is our original equation.

3 0

3 years ago

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kirill115 [55]

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3 years ago

What is the answer of the fractions 9 and 1/6 multiplied by 1 and 1/11? Then, that answer simplified into simplest form?

kari74 [83]

The simplest form is 10.

We can find simplest as form:

Given, fractions are $9\frac{1}{6}$ and $1\frac{1}{11}$

$9\frac{1}{6}\times 1\frac{1}{11}$

$\frac{55}{6}\times \frac{12}{11}$

$=\frac{55\times 12}{6\times 11}$

=10

Hence, simplest form of given fraction is 10.

Learn more about fractions here:

brainly.com/question/78672

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3 0

1 year ago