Yoko paid $10.70 for stamps. She bought three times as many
2 answers:
Answer:
- 30 of 25 cent, 10 of 14 cent, 60 of 2 cent
Step-by-step explanation:
- <em>Note: it must be typo 10.70, changed to 10.10</em>
Number of 25 cent stamps = x
Number of 14 cent stamps = y
Number of 2 sent stamps = z
- Total = $10.10 = 1010 ¢
- x = 3y
- z = 2x ⇒ z = 6y
<u>Solving equation</u>
- 25x + 14y + 2z = 1010
- 25(3y) + 14y + 12y = 1010
- 75y + 26y = 1010
- 101y = 1010
- y = 1010/101
- y = 10
<u>The finding x and z</u>
- x = 3*10 = 30
- z = 6*10 = 60
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have a great day :) hope this helped.
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