We have the triangle 30° - 60° - 90°.
The lenght of the sides are in proportion: ![1:2:\sqrt3\to a:2a:a\sqrt3](https://tex.z-dn.net/?f=1%3A2%3A%5Csqrt3%5Cto%20a%3A2a%3Aa%5Csqrt3)
![a=y\\2a=x\\a\sqrt3=5\\\\a\sqrt3=5\qquad\text{multiply both sides by}\ \sqrt3\\\\3a=5\sqrt3\qquad\text{divide both sides by 3}\\\\a=\dfrac{5\sqrt3}{3}\\\\2a=2\cdot\dfrac{5\sqrt3}{3}=\dfrac{10\sqrt3}{3}\\\\Answer:\ x=\dfrac{10\sqrt3}{3},\ y=\dfrac{5\sqrt3}{3}](https://tex.z-dn.net/?f=a%3Dy%5C%5C2a%3Dx%5C%5Ca%5Csqrt3%3D5%5C%5C%5C%5Ca%5Csqrt3%3D5%5Cqquad%5Ctext%7Bmultiply%20both%20sides%20by%7D%5C%20%5Csqrt3%5C%5C%5C%5C3a%3D5%5Csqrt3%5Cqquad%5Ctext%7Bdivide%20both%20sides%20by%203%7D%5C%5C%5C%5Ca%3D%5Cdfrac%7B5%5Csqrt3%7D%7B3%7D%5C%5C%5C%5C2a%3D2%5Ccdot%5Cdfrac%7B5%5Csqrt3%7D%7B3%7D%3D%5Cdfrac%7B10%5Csqrt3%7D%7B3%7D%5C%5C%5C%5CAnswer%3A%5C%20x%3D%5Cdfrac%7B10%5Csqrt3%7D%7B3%7D%2C%5C%20y%3D%5Cdfrac%7B5%5Csqrt3%7D%7B3%7D)
Answer:
.
Step-by-step explanation:
Answer: x=y-3 or y=3+x
Step-by-step explanation:
total cost = membership +cost per class* number of classes
y = 275+5*x
Choice C
Answer:
63
Step-by-step explanation:
You would add 41 + 18 + 4, which obviously gets you 63. Hope this helped!