Answer:
101.5yd by 101.5yd size of wood
Step-by-step explanation:
Divide the ramp into its constituent shapes:
2 triangles( 3yd by 4.5yd by 5yd)
1st rectangle (the back) 3yd by 11yd
2nd rectangle (the front) 11yd by 5yd
- Find the area of the shapes
Area of triangles = 2 * (1/2*b*h) = 2 * (0.5 * 4.5 * 3) = 2 * 6.75 yd² = 13.5yd²
Area of back rectangle= 3 * 11 = 33yd²
Area of front rectangle = 11 * 5 = 55yd²
- Find the sum of the areas
13.5yd² + 33yd² + 55yd² = 101.5yd²
Answer:
We need to find the value of b to make 8b - 27 be equal to 5, so:
8b - 27 = 5
We solve the equation:
8b = 5 + 27
8b = 32
We divide both sides by 8:
b = 32/8 = 4
So now, we know that b=4, and we can verify:
8*4 - 27 = 5
32 - 27 = 5 TRUE
0.4. 8 9
Tenths Hundredths Thousandths
