Split the figure into 3 shapes: a trapezoid,a rectangle and a triangle
Area of trapezoid
A= 1/2(b1+b2) h
A = 1/2(3 +9)(8)
A = 1/2(12)(8)
A = 48 square units
Area of rectangle:
A = L x W
A = 9 x 8
A = 72 square units
Area of triangle
A = 1/2bh
A = 1/2(3)(8)
A = 12 square units
Area of figure = 48 square units + 72 square units + 12 square units
= 132 square units
Answer
132 square units
Answer:
60 = n
Step-by-step explanation:
This problem can be rewritten as:
18 is 30% of what?
% means "out of 100" and of means "multiply"
18 = 30/100 ⋅ n
100/30 ⋅ 18 = 100/30 ⋅30/100 ⋅ n
1800/30 = 100/30 ⋅ 30/100 ⋅ n (both the 30/100 and 100/30 are crossed out here)
60 = n
Ryan must do a total of 60 problems
Having done 18 problems already he has 42 remaining.
