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Damm [24]
3 years ago
9

carpet plus installs carpet for $100 plus $8 per square yard of carpet. carpet world charges $75 for installation and $10 per sq

uare yard. find the number of square yards that would cause the costs for both companies the same.
Mathematics
1 answer:
inessss [21]3 years ago
4 0
100+8x. 75+10x. That gives you the equations
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what happens to the standard deviation and mean when you add a value to the data set that is equal to mean
adoni [48]

Answer:

You get -0.465

Step-by-step explanation:

4 0
3 years ago
The translation for the algebraic expression 9 more than a number is
dezoksy [38]

Answer: "9 more than" means add 9 onto a number. ex: 9 is "6 more than 15",

6 0
3 years ago
It is given that one number is 6 more than another. If three times the sum of the two numbers is equal to 22 more than the large
Irina-Kira [14]

Answer:

First number=22

Second number=28

Step-by-step explanation:

Since you don't know either of the numbers we can call the first number x. The second number is the first number plus 6 or x+6. The sum is 22 more than the larger number so x+6+22 or x+28. Using this we can create the equation x+x+6=x+28. In order to isolate x we would subract x from both sides ending up with x+6=28. Then subract 6 from both sides to get x=22. This means the first number equals 22. Then to solve for the second number you plug 22 in for x to get the equation 22+6= the second number, so the second number is equal to 28. Look below for just the equation.

x+x+6=x+6+22

2x+6=x+28

-x -x

x+6=28

-6. -6

x=22

22+6

=28

22+28= 28+22

50=50

6 0
3 years ago
Help meeeeee please find the area
Sergio [31]

The total area of this polygon would be 14 yards squared.

The two lower rectangles both have an area of 3 yards squared. (Total of 6 yards squared)

The top rectangle has as area of 8 yards squared.

When you add these together you have a total of 14 yards squared.

Hope this helps and have a nice day! :)

8 0
3 years ago
Read 2 more answers
If dy/dx = x(y-1), find the equation of the tangent line at x=-2 with f(-2)=3
Lapatulllka [165]

Answer:

The equation of the tangent line passing through the point (-2,3) is

 4 x + y +5 =0

Step-by-step explanation:

<u><em>Step(i):-</em></u>

<em>Given that the slope of the tangent</em>

<em>              </em>m = \frac{dy}{dx} = x(y-1)<em></em>

<em>              m = -2( 3-1) = -4</em>

<em>Given point x = -2</em>

<em>          y = f(-2) =3</em>

<em>∴The given point ( x₁ , y₁) = ( -2 ,3)</em>

<u><em>Step(ii):-</em></u>

The equation of the tangent line passing through the point (-2,3)

y - y_{1} = m(x-x_{1} )

y -3 = -4(x-(-2))

y -3 = -4( x+2)

y-3 = -4x -8

4x + y -3+8=0

4x +y +5=0

<u><em>Step(iii):-</em></u>

<em>The equation of the tangent line passing through the point (-2,3) is</em>

<em>   4 x + y +5 =0</em>

<em></em>

3 0
3 years ago
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