kaylie98367p8dx4m kaylie98367p8dx4m

05-06-2018
Mathematics

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SOMEONE PLS HELP/ What is the value of x?

SOMEONE PLS HELP What is the value of x class=

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tramserran tramserran

05-06-2018

These are similar triangles so you can use a proportion:
[tex] \frac{8}{x + 4} = \frac{12}{2x + 1} [/tex]

Cross multiply:
8(2x + 1) = 12 (x + 4)
16x + 8 = 12x + 48
4x = 40
x = 10

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