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Find the missing length indicated. Pls show your work. Thank you

Find the missing length indicated. Pls show your work. Thank you-example-1
User Viuser
by
2.5k points

2 Answers

22 votes
22 votes

✏️ LENGTH


\purple{\underline {\bold{\: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: }}}


\bold \purple{SOLUTION:3}

»
\large \rm (54 - x)/(x) = (35)/(45 - 35)

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\large \rm (54 - x)/(x) = (35)/(10)

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\rm (54 - x )10= 35x

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\rm 540 - 10x= 35x

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\rm 540= 35x + 10x

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\rm 540= 45x

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\large\rm (540)/(45) = \frac{ \cancel{ \green{45}}x}{ \cancel{ \green{45}}}

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\underline {\rm 12 = x}


\bold \purple{ANSWER:}

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\underline {\boxed {\green{\rm 12 = x}}}


\bold \purple{SOLUTION:4}

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\large\rm (21)/(42) = (96 - x)/(96 )

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\large\rm (1)/(2) = (96 - x)/(96 )

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\rm (96 - x)2 = 96

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\rm 192 - 2x = 96

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\rm 2x= 96 - 192

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\rm \frac{ \cancel{ \green{ 2}}x}{ \cancel{ \green{ 2}}} = (96)/( -2)

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\underline {\rm x = 48}


\bold \purple{ANSWER:4}

»
\underline {\boxed {\green{\rm x = 48}}}


\purple{\underline {\bold{\: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: }}}

#LetsStudy

User Florian Brinker
by
2.1k points
6 votes
6 votes

#3


\\ \sf\longmapsto (54-x)/(x)=(35)/(45-35)


\\ \sf\longmapsto (54-x)/(x)=(35)/(10)


\\ \sf\longmapsto 10(54-x)=35x


\\ \sf\longmapsto 540-10x=35x


\\ \sf\longmapsto 540=45x


\\ \sf\longmapsto x=(540)/(45)


\\ \sf\longmapsto x=12

#4


\\ \sf\longmapsto (21)/(42)=(96-x)/(96)


\\ \sf\longmapsto (1)/(2)=(96-x)/(96)


\\ \sf\longmapsto 2(96-x)=96


\\ \sf\longmapsto 96-x=48


\\ \sf\longmapsto x=96-48


\\ \sf\longmapsto x=48

Used Law:-

Basic proportionality Theorem.(Thales theorem)

If DE||BC in triangle ABC(D and E are points on AB and AC) then


\\ \sf\longmapsto (AD)/(DC)=(AE)/(EC)

User Thefourtheye
by
3.5k points