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gavmur [86]
3 years ago
5

For trapezoid JKLM, A and B are midpoints of the legs. Find AB.

Mathematics
1 answer:
romanna [79]3 years ago
8 0

Answer:

29

Step-by-step explanation:

The length of the median of a trapezoid equals one-half the sum of the lengths of the bases.

\begin{array}{rcl}AB & = & \frac{1}{2}(JK + LM)\\\\& = & \frac{1}{2}(19 + 39)\\\\& = & \frac{1}{2}\times 58\\\\& = & \mathbf{29}\\\end{array}

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a + b = 3
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Putting the value of a in the first equation we get
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3(3 - b) + 4b = 9
9 - 3b + 4b = 9
b = 9 - 9
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Now putting the value of b in the second equation we get
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And the times taken by Micah when Sydney is also taking the books outside from the self= 20 minutes

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