Answer:
35x + 114
12
Step-by-step explanation:
(-1/3x + 9.5) + x(3/4 + 2.5)
(-1/3x + 95/10) + x(3/4 + 25/10)
(-x/3 + 5 × 19/2 × 5) + x(3/2² + 5²/2 × 5)
(-x/3 + 19/2) + x(3/2² + 5²⁻¹/2)
(2(-x) + 3 × 19/ 3 × 2) + x(3/2² + 5/2)
(-2x + 57/3 × 2) + x(3 + 2 × 5/2²)
-2x + 57/3 × 2 + x(3 + 2 × 5/2²)
-2x + 57/3 × 2 + x(13/2²)
-2x + 57/3 × 2 + x × 13/2²
-2x + 57/3 × 2 + 13x/2²
2(-2x + 57) + 3(13x)/3 × 2²
2(-2x + 57) + 3 × 13x/3 × 2²
2(-2x + 57) + 39x/3 × 2²
(-2 × 2x + 2 × 57) + 39x/3 × 2²
(-4x + 114) + 39x/3 × 2²
-4x + 114 + 39x/3 × 2²
-4x + 39x + 114/3 × 2²
35x + 114/3 × 2²
35x + 114/3 × 4
35x + 114/12
5/3 % * x = 4.75
5/300 x =4.75
x = 4.75 * 300/5
x=4.75 * 60
x=285
Answer is 174 ft2.
Area of triangle: 24 ft2
First, find the horizontal side of the triangle (using pythagorus).
16-10=6
root10^2 - 6^2 = 8 ft
Then work out the area of the triangle.
(8 x 6)/2 = 24 ft2
Secondly, find the area of the rectangle.
10 x 15 = 150 ft2
Then add up the area of the triangle and rectangle.
150+24= 174 ft2
9.675 because it's the fastest runner of them all
