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3 years ago

What is the answer please

Mathematics

2 answers:

gogolik [260]3 years ago

7 0

Answer:

BD=25 1/3

Step-by-step explanation:

BC+CD=BD

11+x+9=4x+4

x=16/3

BD=4x+4

BD=4(16/3)+4

BD=64/3 +4 ⇒ 64/3 +12/3

BD=76/3

otez555 [7]3 years ago

4 0

Answer: $BD=25\frac{1}{3}$

Step-by-step explanation:

Since C is a point in BD, we add BC and CD, then set it equal to BD.

11+x+9=4x+4 [combine like terms]

20+x=4x+4 [subtract both sides by x]

20=3x+4 [subtract both sides by 4]

16=3x [divide both sides by 3]

x=16/3

Now that we have x, we plug it into BD to find the length.

BD=4(16/3)+4 [multiply]

BD=64/3+4 [rewrite 4 into fraction]

BD=64/3+12/3 [add]

BD=76/3

Since this is not a proper fraction, we can write it as a mixed number.

$BD=25\frac{1}{3}$

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