Answer:
b
Step-by-step explanation:
eg2022
Answer:
81
Step-by-step explanation:
Set up a proportion to find how many total students there are [notice how females are on top and totals are on the bottom of the ratios]
= so cross multiply 4x = 396(9) so x = 891, if there are a total of 891 students and you need 1 teacher per 11 students then take 891/11 so you need 81 teachers.
You could set up another proportion 1/11 = x/891
Think of the doghouse as being a rectangular prism bottom and a triangular prism on top.
volume of prism: area of the base * height
Rectangular prism:
The base is a square 4.5 ft by 4.5 ft.
The height is 3.0 ft.
volume = 4.5 ft * 4.5 ft * 3.0 ft = 60.75 ft^3
Triangular prism:
The triangle facing the front is the base. The height is the depth, 4.5 ft.
For the triangle, the area is bh/2, where b = 4.5 ft, h = 1.5 ft
volume = bh/2 * height
volume = 4.5 ft * 1.5 ft / 2 * 4.5 ft = 15.1875 ft^3
Total volume = 60.75 ft^3 + 15.1875 ft^3
Total volume = 75.9375 ft^3