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romanna [79]
3 years ago
7

Can someone please help me with this.

Mathematics
1 answer:
ad-work [718]3 years ago
4 0

Answer:

Step-by-step explanation:

1.Distribute

12x - 66 + 15 =21

2.Add the numbers

12x-51=21

3.Add 51 to both sides of the equation

12x -51 +51 = 21+51

4.Simplify

12x=72

5. Divide both sides of the equation by the same term

12x/12 = 72/12

6. Divide the numbers

x=6

And you have your answer x=6

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To use the equal values method, we want to get both of these equations equal to the same thing, and then set them equal to each other. To do this, let's solve both for x:
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For the second equation:
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Then if we set these two equal to each other:
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4 years ago
What is the prime factorization of 360?
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3 years ago
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I’ve been stuck can someone help
never [62]

Answer:

(a). A_{x} = \left[\begin{array}{cc}12&-4\\66&6\end{array}\right]

Step-by-step explanation:

\left \{ {{5x-4y=12} \atop {3x+6y=66}} \right.

A = \left[\begin{array}{cc}5&-4\\3&6\end{array}\right]

A_{x} = \left[\begin{array}{cc}12&-4\\66&6\end{array}\right]

A_{y} = \left[\begin{array}{cc}5&12\\3&66\end{array}\right]

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3 years ago
steve and scott are twins out for a morning jog. They run at the exact same speed They split at a corner one north, one east. On
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Their running paths form the legs of an isosceles right triangle. The hypotenuse of such a triangle (the distance between Steve and Scott) is √2 times the length of one leg. Each has run 10 miles in the hour since they split.

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Will give Brainliest! if right!
Semenov [28]
I think the correct answer is 

C) Suki's method is best because it uses a random sample

Glad I could help, and good luck!

AnonymousGiantsFan



8 0
4 years ago
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