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Jobisdone [24]
3 years ago
9

I’ll mark you brainliest

Mathematics
2 answers:
levacccp [35]3 years ago
7 0

Answer:

42

Step-by-step explanation:

In a rectangle, the diagonals have the same length. Therefore:

3x+6=5x-18 \\\\3x+24=5x \\\\ 24=2x \\\\x=12 \\\\BD=5(12)-18=60-18=42

Hope this helps!

Pepsi [2]3 years ago
3 0

Answer:

BD = 42

x=12 is found below as a way to find x

We can find 42 by adding together the equations

3x+6 = 5x-18

+18 = 5x(-3x-6)

18 + 6 = 2x

24 = 2x

x= 12  

We can then plug in for 5x and 3x

as BD = 5x-18 = 3x+6

5(12) = 60 -18 = 42 and 3(12) =36+6 = 42

To find line BD = 42

Step-by-step explanation:

3x+6= 42

3x = 42-6

3x = 36

x = 12

5x-18 = 60

5x = 60- 18

5x = 42

x=12

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6 0
3 years ago
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mrs_skeptik [129]

Answer:

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Step-by-step explanation:

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6 0
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Read 2 more answers
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