Answer:
![\large\boxed{x=\dfrac{45}{4}=11\dfrac{1}{4}}](https://tex.z-dn.net/?f=%5Clarge%5Cboxed%7Bx%3D%5Cdfrac%7B45%7D%7B4%7D%3D11%5Cdfrac%7B1%7D%7B4%7D%7D)
Step-by-step explanation:
![-8x=-90\qquad\text{divide both sides by (-8)}\\\\\dfrac{-8x}{-8}=\dfrac{-90}{-8}\\\\x=\dfrac{90}{8}\\\\x=\dfrac{90:2}{8:2}\\\\x=\dfrac{45}{4}\to x=11\dfrac{1}{4}](https://tex.z-dn.net/?f=-8x%3D-90%5Cqquad%5Ctext%7Bdivide%20both%20sides%20by%20%28-8%29%7D%5C%5C%5C%5C%5Cdfrac%7B-8x%7D%7B-8%7D%3D%5Cdfrac%7B-90%7D%7B-8%7D%5C%5C%5C%5Cx%3D%5Cdfrac%7B90%7D%7B8%7D%5C%5C%5C%5Cx%3D%5Cdfrac%7B90%3A2%7D%7B8%3A2%7D%5C%5C%5C%5Cx%3D%5Cdfrac%7B45%7D%7B4%7D%5Cto%20x%3D11%5Cdfrac%7B1%7D%7B4%7D)
Speed of Tim = 60 miles/hour
Speed of Joe = 45 miles/ hour
Distance = Speed x Time
A 3 hours, Tim had travelled 60 x 3 miles = 180 miles.
At 3 hours, Joe had travelled 45 x 3 miles = 135.
The difference between the distances is 45.
Therefore, they were 45 miles apart after 3 hours.
I hope this is right.
I think the kite is at a 45 degree angle