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Mariulka [41]
3 years ago
14

Ben gets 5 more presents than his naughty little sister Gwen this holiday season. If together they receive 21 presents, how many

Mathematics
1 answer:
Alekssandra [29.7K]3 years ago
3 0

9514 1404 393

Answer:

  • Ben: 13
  • Gwen: 8

Step-by-step explanation:

The given relations give rise to two equations:

  b = g + 5

  b + g = 21

Using the first to substitute for b in the second, we have ...

  (g +5) +g = 21

  2g = 16 . . . . . . . subtract 5

  g = 8 . . . . . . . . . divide by 2

  b = 8 +5 = 13

Ben got 13 presents; Gwen got 8.

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Suppose you triangle is not a right triangle. Draw a perpendicular from the vertex opposite the longest side, to the longest side. What you have now is two right triangles which, by the above contain 360 degrees in total. But if you look at the two right angles that add up to 180 degrees so the other angles, the angles of the original triangle, add up to 360 - 180 = 180 degrees.

Step-by-step explanation:

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Answer:


Step-by-step explanation:

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