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yulyashka [42]
3 years ago
13

(ASAP 50 POINTS) If the aspect ratio of a chalkboard is 4:3 and the width is 12 in, what is the length of the chalkboard?

Mathematics
2 answers:
kvv77 [185]3 years ago
8 0
The answer is 6.67 i think
Mice21 [21]3 years ago
7 0

Answer: The length of the chalkboard is 9 inches.

Step-by-step explanation:

12/4= 4

3*3= 9

12:9 is equal to 4:3

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If the slope of a line is -1/4,<br>find x when (x,2) and (1/2,6)​
Alecsey [184]
Use slope formula:
m = (y2-y1) / (x2-x1)
-1/4 = 6-2 / 1/2 - x
-1/4 = 4 / 1/2 - x
-1(1/2 - x) = 4(4)
-1/2 + x = 16

x = 16 1/2 or 33/2
7 0
3 years ago
1) write a system on equations with the solution (2, -3). Work the problem out using the substitution method
solmaris [256]

The system of the equations that have the solution of (2, -3) are given below.

3x + 2y = 0 and 3y = 2x - 13

<h3>What is the linear system?</h3>

A Linear system is a system in which the degree of the variable in the equation is one. It may contain one, two, or more than two variables.

Write a system of equations with the solution (2, -3).

From a single point, an infinite number of lines pass through this point.

Let one line is passing through the origin. Then the equation of the line will be

\rm y  = \dfrac{-3}{2} (x)\\\\y = -1.5x

And the other line is perpendicular to the line which is passing through the origin and a point (2, -3).

\rm y = \dfrac{2}{3} x + c

Then this line also passes through a point (2, -3). Then the value of c will be

\rm -3 = \dfrac{2}{3} \times 2 + c\\\\c \ \  = -13

Then the equation of the line will be

3y = 2x -13

More about the linear system link is given below.

brainly.com/question/20379472

#SPJ4

8 0
2 years ago
Factor the following polynomial by grouping it in pairs.<br><br>4xy + 6 - x - 24
yKpoI14uk [10]
Combine Like Terms:

=4xy+6+−x+−24

=(4xy)+(−x)+(6+−24)

=4xy+−x+−18


Answer:

=4xy−x−18

3 0
3 years ago
What is u = kx + ух, for x
Ivahew [28]

Answer:

<h2>x=  \frac{u}{k + y}</h2>

Step-by-step explanation:

u = kx + ух

First of all factorize x out at the right side of the equation

That's

u = x(k + y)

Divide both sides by ( k + y) to make x stand alone

That's

<h3>\frac{x(k + y)}{k + y}  =  \frac{u}{k + y}</h3>

We have the final answer as

<h3>x =  \frac{u}{k + y}</h3>

Hope this helps you

6 0
3 years ago
Convert the improper fraction to a mixed number​
alex41 [277]
1) 10 3/10
3) 2 1/2
4) 10 2/3
6) 6 1/2
7) 4 3/4
9) 1 8/9
10) 1 5/6
4 0
3 years ago
Read 2 more answers
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