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Viefleur [7K]
3 years ago
10

Find YZ pls fast correct

Mathematics
2 answers:
polet [3.4K]3 years ago
7 0

\huge\text{Hey there!}

\large\textsf{21(2x - 6) = 30(x + 1)}

\large\textsf{21(2x) + 21(-6) = 30(x) + 30(1)}

\large\textsf{21(2x) = 42x}

\large\textsf{21(-6) = -126}

\large\textsf{30(x) = 30x}

\large\textsf{30(1) = 30}

\large\textsf{42x - 126 = 30x + 30}

\large\text{Put ALL your LIKE TERMS TOGETHER}

\large\text{NEW EQUATION: \textsf {42x - 30x = 126 + 30}}

\large\textsf{42x - 30x = 12x}

\large\textsf{126 + 30 = 156}

\large\text{NEW EQUATION: \textsf{12x = 156}}

\large\text{DIVIDE 12 to BOTH SIDES}

\mathsf{\dfrac{12x}{12}=\dfrac{156}{12}}

\large\text{CANCEL out: } \mathsf{\dfrac{12}{12}}\large\text{ because that gives you 1}

\large\text{KEEP: }\mathsf{\dfrac{156}{12}}\large\text{ because that helps you solve for your the given equation} \\\\\large\text{and your YZ result}

\mathsf{\dfrac{156}{12}=\bf 13}

\large\text{NEW and FINAL EQUATION: \textsf{30 + 1 + 13}}

\large\textsf{30 + 1 + 13}

\large\textsf{30 + 1 = \bf 31}

\large\textsf{= 31 + 13}

\large\textsf{=  \bf 44}

\boxed{\boxed{\large\textsf{Answer: \huge \bf  YZ = 44 }}}\huge\checkmark

\text{Good luck on your assignment and enjoy your day!}

~\frak{Amphitrite1040:)}

noname [10]3 years ago
6 0

Answer:

  • 44

Step-by-step explanation:

<u>According to intersecting chords theorem:</u>

  • 21(2x - 6) = 30(x + 1)
  • 42x - 126 = 30x + 30
  • 42x - 30x = 126 + 30
  • 12x = 156
  • x = 156/12
  • x = 13

<u>Find the value of YZ:</u>

  • YZ = 30 + 13 + 1 = 44
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