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svp [43]
4 years ago
10

Matt's parents pay him $5.50 for each half hour he babysits his sister, plus a tip. if matt made $18.50,for how long did he baby

sit?
Mathematics
1 answer:
Scorpion4ik [409]4 years ago
8 0
Set up equation: 5.5x=18.5.
Solve: X=18.5/5.5=3.36 or about 3 or 3 and 1/2 :)
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Suppose that 24 inches of wire costs 96 cents.
Alexxx [7]
At the same rate, 31 inches of wire will cost 124 cents.

3 0
3 years ago
Help me with these math questions.
Olegator [25]

graph A

no x-intercept

no y-intercept

H.A is y = 5

V. A. is x = 0

*****************************************

Answer: \frac{150}{31}

<u>Step by step explanation:</u>

log₆(5x + 6) - log₆(x - 4) = 2

log₆(\frac{5x+6}{x-4}) = 2

(\frac{5x+6}{x-4}) = 6²

(\frac{5x+6}{x-4}) = 36

5x + 6 = 36(x - 4)

5x + 6 = 36x - 144

       6 = 31x - 144

    150 = 31x

     \frac{150}{31} = x

**********************************************************

Answers:

  • a. (-1, -5)
  • b. up
  • c. x = -1
  • d. \frac{-2+\sqrt{15}}{3} and\frac{-2-\sqrt{15}}{3}
  • e. -2
  • f. see attachment
  • g. domain (-∞, ∞)  range [-5, ∞)

<u>Explanation:</u>

f(x) = 3x² + 6x - 2

      a=3  b=6 c=-2

x = \frac{-b}{2a} =\frac{-6}{2(3)} = \frac{-6}{6} = -1

Axis Of Symmetry: x = -1

f(-1) = 3(-1)² + 6(-1) - 2

       = 3 - 6 - 2

       = -5

Vertex: (-1, -5)

x = \frac{-b+/-\sqrt{b^{2}-4ac}}{2a}

  = \frac{-6+/-\sqrt{6^{2}-4(3)(-2)}}{2(3)}

  = \frac{-6+/-\sqrt{36+24}}{6}

  = \frac{-6+/-\sqrt{60}}{6}

  = \frac{-6+/-2\sqrt{15}}{6}

  = \frac{-2+/-\sqrt{15}}{3}

x-intercepts: \frac{-2+/-\sqrt{15}}{3}



6 0
3 years ago
Do the ratios <br> 50<br> 27<br><br> and <br> 6<br> 3<br> form a proportion?
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Answer:

No because if you cross multiply 50x3= 150 while 27x6 is like 162 so no

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Can y’all help me out please
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Answer: C
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