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posledela
3 years ago
5

5C7%268%269%5Cend%7Barray%7D%5Cright%5D" id="TexFormula1" title="567x^{2} \alpha \left[\begin{array}{ccc}1&2&3\\4&5&6\\7&8&9\end{array}\right]" alt="567x^{2} \alpha \left[\begin{array}{ccc}1&2&3\\4&5&6\\7&8&9\end{array}\right]" align="absmiddle" class="latex-formula">
Mathematics
1 answer:
Pie3 years ago
3 0

Answer:

699999993632^xa

Step-by-step explanation:

Just use M a t h w a y A l g e r b a

It may be wrong Sorry if it is

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This is a System Of Equations and I'd like it to get solved by the Elimination or Substitution Method.x+2y=83x+5y=8
Sonbull [250]

Answer:

x=133 y=-25

Step-by-step explanation:

I'll do both ways for you. So let's start with Substitution:

With the sub method, you have to set both equations equal to each other by setting them equal to the same variable. Since there is no coefficient in front of both x's in both equations, that variable will be easiest to solve for.

x + 2y = 83    &    x + 5y = 8

Solve for x.

x = 83 - 2y     &    x = 8 - 5y

Once you have solved for x, set each equation equal to one another and solve for y now.

83 - 2y = 8 - 5y

Isolate all variables to one side:

83 = 8 - 3y

Now subtract the 8 to fully isolate the y variable:

75 = -3y

Divide by -3:

-25 = y   Now that you have your first variable, plug it into one of the original equations and solve for x.

x + 2(-25) = 83

x - 50 = 83

x = 133

Now for the Elimination method. For this method you need to get rid of a variable by either subtracting/adding each equation together. Again, since you can subtract and x from both equations, you will be left with only the y variable to solve:

Put each equation on top of one another and subtract:

  x + 2y = 83

- (x + 5y = 8)

The x's will cancel out:

(x - x) + (2y - 5y) = (83 - 8)

Simplify:

-3y = 75

Solve for y

y = -25

Then, plug y = -25 into one of the original equations:

x + 5(-25) = 8

Solve for x:

x - 125 = 8

x = 133

Hope this helps!

8 0
2 years ago
I ordered 2000000 chicken nuggets and 500000 pounds of Mac and cheese how much chicken nuggets and Mac and cheese do i have all
Triss [41]

Answer:

well first of all whoever is eating that finna get high levels of cholesterol  also you have 2500000 pounds of MAC and cheese and chicken nuggets all together

5 0
3 years ago
Read 2 more answers
Drag each equation to show if it could be a correct first step to solving the equation 2(x+7)=36.
DanielleElmas [232]
The second is Yes
Sixth is Yes
First is No
Fourth is No
Fifth is No
Third is Not Enough Info
And last x=11
7 0
3 years ago
Read 2 more answers
Which variable expression represents the word phrase? the sum of 12 and the quotient of 9 and a number
iris [78.8K]
"Sum" tells us it's an addition problem:

One term is 12 and the other is 9/x

SO

The expression is:
12+9/x
6 0
4 years ago
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Create a model to show 2 x 5.
jekas [21]

Answer:

The model should look like this: ⚫⚫⚫⚫⚫

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7 0
3 years ago
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