Find the area of the triangle, then multiply by the depth.
Area = 1/2 x 10 x 12 = 60 square ft.
Volume = 60 x 20 = 1200 ft³
Answer: x = 9
Remember: cross-multiply (product of the means equals the product of the extremes) to solve this proportion. It forms a 'cross'-- hence its name.
4 8 4 and 2 are the extremes
------ = ------ 8 and x - 8 are the means
x - 8 2
(4)(2) = 8(x - 8) Simplify
8 = 8(x - 8) Distributive Property
8 = 8x - 64 Add 64 to both sides
72 = 8x Divide by 8 for both sides
9 = x Answer!
x = 9 Answer!
Her unit rate is 5 miles per hour.
1.76
Subtract 2.5 to 3/4 by dividing 3 to 4 getting the answer of 1.76
