Your answer would be 42.5.
Divide 106.25 by 5 (which is 21.25) then multiply 21.25 by 2.
Let c be the hypotenuse in miles.
72 + 92 = c2
49 + 81 = c2
130 = c2
130‾‾‾‾√ = 2‾‾√
130‾‾‾‾√ = c
11.4 ≈ c
The path along Riverside Drive is shorter, about 11.4miles, compared to the path along Cypress and Control Avenues, 16 miles. The difference is about 4.6 miles. The Pythagorean theorem allowed me to calculate the distance along Riverside Drive because the three roads from a right triangle.
You multiply the smaller film (35mm) and since the screen is being made bigger "dilated" you multiply 35 by the 350 and get 12,250 (c)
X +y=13
1/2*x+y=10 |-1
x +y=13
-1/2*x-y=- 10 } +
x-1/2*x=13-10
1/2*x=3
x=3*2
x=6
6+y=13
y=13-6
y=7
The solution is : (6,7)
