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Phantasy [73]
3 years ago
13

(look at image) can i get help with these two?

Mathematics
1 answer:
serg [7]3 years ago
6 0

Answer:

1. x = 2, AC = 30, AB - 4

2. y = 4, AB = 34, BC = 34

Step-by-step explanation:

1. AB + BC = AC so 26 + (10 - 3x) = 14x +2 and then add 3x to both sides and subtract 2 from both sides to get x on one side and an integer on the other side which is 34 = 17x and then divide 17 from both sides to get x = 2 and then substitute x into the AC and AB equations to find the values its equal to.

2. The symbol in the given means that the two lengths are congruent which means they are equal to each other so you put the two equations equal to each other and solve for y. 9y -2 = 14 + 5y, so subtract 5y from both sides and add two to both sides to get 4y = 16 and then divide both sides by 4 to get y = 4 and then substitute in the answer to find the lengths of AB and BC.

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Answer:

   46. <u>(3) 29</u>

   47. <u>(1) y = -4x + 3</u>

   48. <u>(3) 3</u>

   49. <u>(3) -1/2</u>

   50. <u>(4) 25x - 75</u>

Step-by-step explanation:

<u>Question 46</u>

  • Let red marbles be 2x + 3 and black marbles be x
  • 2x + 3 + x = 42
  • 3x = 39
  • x = 13
  • No. of red = 2(13) + 3 = 29 marbles
  • <u>(3) 29</u>

<u></u>

<u>Question 47</u>

  • Parallel to a line means the slope is the same
  • <u>(1) y = -4x + 3</u>

<u></u>

<u>Question 48</u>

  • For the expression to be undefined, the denominator has to be 0
  • x - 3 = 0
  • x = 3
  • <u>(3) 3</u>

<u></u>

<u>Question 49</u>

  • Slope = -4 - 1 / 4 + 6
  • Slope = -5/10
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  • <u>(3) -1/2</u>

<u></u>

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6 0
2 years ago
Hi! Can you explain how to do this problem and why? I appreciate it!
creativ13 [48]
The scale factor of 4 because:

4*2=8&#10;

3*4=12

8*12=96

I hope this helps c:
4 0
3 years ago
Read 2 more answers
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