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OLga [1]
3 years ago
6

Solve, cross multiply(x+2) / 2x = 3/2

Mathematics
1 answer:
bonufazy [111]3 years ago
5 0

Answer:

1

Step-by-step explanation:

x+2/2x=3/2

2x×3=2x+4

6x=2x+4

4x=4

x=4/4

x=1

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Write an expression that shows how to use the halving and doublingto find 28 times 50
katen-ka-za [31]
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Hope it helped
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Select the slope-intercept form of an equation for a line with y-intercept -2 and slope 6.<br>​
ozzi

Answer:

y = 6x - 2

Step-by-step explanation:

slope intercept form is y = mx + b

m = slope

b = y-intercept

They give us the slope (m) which is 6 and the y-intercept (b) which is -2. PLug it into the equation

y = mx + b

y = 6x - 2

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How do I solve a+18=7a ?
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6 0
3 years ago
Read 2 more answers
Write an equation (in slope-intercept form) of the line that passes through (0, 3) and (−5, 2.5).
Paladinen [302]

The equation of the line passing throught the points A(x_A,y_A) and B(x_B,y_B) has a form

\dfrac{x-x_A}{x_B-x_A}=\dfrac{y-y_A}{y_B-y_A}.

Now the equation of the line passing through points (0, 3) and (−5, 2.5) is

\dfrac{x-0}{-5-0}=\dfrac{y-3}{2.5-3}.

Simplify it:

\dfrac{x}{-5}=\dfrac{y-3}{-0.5},\\ \\0.5x=5(y-3),\\ \\5x=50y-150,\\ \\x=10y-30,\\ \\10y=x+30,\\ \\y=0.1x+3.

This equation is in slope-intercept form.

Answer: y=0.1x+3.

5 0
4 years ago
Dwie proste przecinają się, tworząc kąty ostre i rozwarte. Miara kąta ostrego jest dwukrotnie mniejsza od miary kąta rozwartego.
Lilit [14]

Answer:

<h2>The obtuse angle is 120°.</h2><h2>The acute angle is 60°.</h2>

Step-by-step explanation:

This problem is about two crossing line, when that happens, we have 4 angles, two acute and two obtuse, where adjacent angles are supplementary and vertical angles are equal.

We can form the expression

A = \frac{O}{2}

Where A is an acute angle and O is an obtuse angle.}

Using all the given information, we have

O + \frac{O}{2}=180\°

Solving for O, we have

\frac{3O}{2}=180\\ O=120\°

Therefore, the obtuse angle is 120°, which means the acute angle is 60°, because they are supplementary angles, as we said befor.

4 0
3 years ago
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