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juin [17]
3 years ago
12

A group of 5 teachers bought 3 pens and 1 eraser each. Their total cost for all the materials was $12.89. If the eraser was $0.9

7, how much was each pen?
Variable:________________

Equation:________________

Solution:________________
Mathematics
1 answer:
n200080 [17]3 years ago
7 0

Answer:

  • $0.536

Step-by-step explanation:

<u>Variable: </u>

  • p for pen

<u>Equation:</u>

  • 5(3p + 0.97) = 12.89

<u>Solution:</u>

  • 5(3p + 0.97) = 12.89
  • 15p + 4.85 = 12.89
  • 15p = 12.89 - 4.85
  • 15p = 8.04
  • p = 8.04 / 15
  • p = 0.536
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