Answer:
cant see the picture
Step-by-step explanation:
In this triangle, we have
![\cos30^\circ=\dfrac{4x\sqrt3-5\sqrt3}{5x-4}](https://tex.z-dn.net/?f=%5Ccos30%5E%5Ccirc%3D%5Cdfrac%7B4x%5Csqrt3-5%5Csqrt3%7D%7B5x-4%7D)
You should know that
, so that
![\dfrac{\sqrt3}2=\dfrac{4x\sqrt3-5\sqrt3}{5x-4}](https://tex.z-dn.net/?f=%5Cdfrac%7B%5Csqrt3%7D2%3D%5Cdfrac%7B4x%5Csqrt3-5%5Csqrt3%7D%7B5x-4%7D)
Divide both sides by
to get
![\dfrac12=\dfrac{4x-5}{5x-4}](https://tex.z-dn.net/?f=%5Cdfrac12%3D%5Cdfrac%7B4x-5%7D%7B5x-4%7D)
Multiply both sides by
to get
![\dfrac{5x-4}2=4x-5](https://tex.z-dn.net/?f=%5Cdfrac%7B5x-4%7D2%3D4x-5)
Simplify and solve for
:
![\dfrac{5x}2-2=4x-5](https://tex.z-dn.net/?f=%5Cdfrac%7B5x%7D2-2%3D4x-5)
![5-2=4x-\dfrac{5x}2](https://tex.z-dn.net/?f=5-2%3D4x-%5Cdfrac%7B5x%7D2)
![3=\dfrac{3x}2](https://tex.z-dn.net/?f=3%3D%5Cdfrac%7B3x%7D2)
![6=3x](https://tex.z-dn.net/?f=6%3D3x)
![\implies\boxed{x=2}](https://tex.z-dn.net/?f=%5Cimplies%5Cboxed%7Bx%3D2%7D)
Divide 7/10 and multiply by 100
0.7 x 100 = 70%
Answer:
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Step-by-step explanation: