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mash [69]
2 years ago
8

Solve the set of simultaneous equations graphically. Use a scale of 1cm = 1 unit on both axes.

Mathematics
1 answer:
Anit [1.1K]2 years ago
7 0
  • y=4+x
  • y=3x+1

Graphs attached

  • (x,y)=(1.5,5.5)

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HACTEHA [7]
Angles in a triangle must add up to 180°, so you could use this information to find the values of the angles. 1 + 2 + 2 = 5, 180 ÷ 5 = 36. 36 × 2 = 72, so 36 + 72 + 72 = 180. This means that the answer is A. acute, because all of the angles are below 90°. I hope this helps!
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The spinner has eight spaces of equal size. What is the mathematical probability of the pointer's stopping in the space marked 1
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Solve the equation 4-2(x+7)=3(x+5) =
kumpel [21]

Hi there!


To solve this equation, I first would like to warn you about the long answer I am about to post for you. I'll be putting in very detailed steps for you, showing you how to simplify and distribute numbers, etc. :)


Let us solve your equation step-by-step.


Step 1) Simplify both sides of the equation.


To simplify this, we will...


4 + (-2) (x) + (-2) (7) = (3) (x) + (3) (5)


4 + - 2x + - 14 = 3x + 15


(-2x) + (4 + - 14) = 3x + 15


Now, we combine Like Terms...


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Fwew! That was probably going to be the longest step here!


Step 2) Subtract 3x from both sides.


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Step 3) Add 10 to both sides.


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Step 4) Divide both sides by -5.


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So, our final answer is x = -5.


Hope this helps!

Message me if you need anything else! I'd be happy to help! :D

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yanalaym [24]

let the length of each shorter side be x

length of longer side= x+14

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2x + 28 + 2x = 48

4x + 28 = 48

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x = 5

shorter side = 5cm

3 0
3 years ago
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