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3 years ago

Add: (7x-6y)+(3x+3y-3)

2 answers:

6 0

Since all the functions in here are addition and subtraction, you can remove the parentheses and just combine like terms.
$(7x-6y)+(3x+3y-3) \\ 7x-6y+3x+3y-3 \\ 7x+3x+3y-6y-3 \\ (7x+3x)+(3y-6y)-3 \\ 10x+(-3y)-3 \\ 10x-3y-3$

The answer is 10x-3y-3.

Hope this helps!

lyudmila [28]3 years ago

3 0

Let's simplify step-by-step.7x−6y+3x+3y−3=7x+−6y+3x+3y+−3Combine Like Terms:=7x+−6y+3x+3y+−3=(7x+3x)+(−6y+3y)+(−3)=10x+−3y+−3Answer:=10x−3y−3

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(-8) x 10 x 9 is equal to

Sergio [31]

Answer:

-720

Step-by-step explanation:

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3 years ago

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Draw your own rectangle, with an area of 24 square units, on the coordinate plane. Then, identify the vertices of your rectangle

Gnoma [55]

Answer:

First you should remember that the formula for calculating area of a rectangle is;

Area=Length × width

You can decide to have a rectangle with different dimensions provided the area is 24 square unit

For this case, lets choose a rectangle with vertices at (1,0), (7,0),(1,4), (7,4)

After plotting these coordinates, you will notice your rectangle has a length of 6 units and a width of 4 units

A single unit is 1 square unit.When you Count the number of units inside the rectangle formed you realize you have 24 units covered inside

The area of the 24 units will be;

24×1 square unit= 24 square units

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2 years ago

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Equation, find y when x=-3. y = -x + 5 When x = -3, y =

Step2247 [10]

I think y = 8. Since x = -3 then the equation would be y = -1(-3) +5. -1 times -3 equals 3. So now the equation is y = 3 +5. That would give you 8.

7 0

3 years ago

There is a bag filled with 4 blue, 3 red and 5 green marbles.

Vsevolod [243]

<h2>The chances of receiving two greens are 5/31.</h2>

Given a bag containing four blue, three red, and five green marbles, the total result is:

Total number of balls = 4 + 3 + 5 = 12

If green is chosen first, the chances of picking a green are 5/12.

The probability that the second stone is green is 4/11 if it is picked and not replaced (4 greens remaining)

The chance of earning two greens is 5/12 4/11.

The chance of getting two greens is 20/132.

The chance of earning two greens is 5/31.

<h3>As a result, the chance of getting two greens is 5/31.</h3>

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2 years ago

Write the equation of a line that is perpendicular to x=3x=3x, equals, 3 and that passes through the point (0,-4)(0,−4)left pare

leva [86]

Answer: $x+3y=12$

Step-by-step explanation:

Slope of two lines that are perpendicular to each other is 1.

If one line is $y=3x$ , then its slope = 3 [by comparing to the linear equation y= mx+c, here m=3]

Let n be the slope of the required line, then

$n\times3=-1\\\\\rightarrow\ n=\dfrac{-1}{3}$

Equation of line with slope n and passers through (a,b) is

$(y-b)=n(x-a)$

Equation of line with slope n= $\dfrac{-1}{3}$ and passes through point ( 0,-4) :

$(y-(-4))=\dfrac{-1}{3}(x-0)\\\\\Rightarrow\ y+4=\dfrac{-1}{3}x\\\\\Rightarrow\ -3(y+4)=x\\\\\Rightarrow-3y-12=x\\\\\Rightarrow x+3y=12$

Hence, Required equation : $x+3y=12$

8 0

3 years ago