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Klio2033 [76]
3 years ago
13

A student wrote the equation 4(x+5.5)=3(1.5x+4.75) to represent the problem shown. Find her mistake and correct it.

Mathematics
1 answer:
Afina-wow [57]3 years ago
8 0

Answer:

  • $8.5

Step-by-step explanation:

<u>The first group consists of Petra and 4 friends, so the total number of members is 5, therefore the left side of equation should be:</u>

  • 5(x + 5.5)

<u>The second group consists of 4 people, Valentina and 3 friends, therefore the right side of the equation should be</u>:

  • 4(1.5x + 4.75)

<u>Solving the equation to find the cost of a ticket for Petra's group:</u>

  • 5(x + 5.5) = 4(1.5x + 4.75)
  • 5x + 27.5 = 6x + 19
  • 6x - 6x = 27.5 - 19
  • x = 8.5

Cost of a ticket is $8.5

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Answer:

Step-by-step explanation:

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Where

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x1 = 14

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The pooled proportion, pc is

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