8. a triangle is 20 inches tall and 5 inches wide. if it is reduced to a width of 2 inches then how
tall will it be?

8 inches

Step-by-step explanation:

Assuming the two triangles are similar:

Scale Factor = 5/2 = 2.5

20/2.5 = 8 inches

distance covered by pamela in 9 l of fuel = 99km

let us apply unitary method here.

distance covered by pamela in 1 l of fuel =99/9 =11 km

now let us find distance covered by pamela if she has 12 l of fuel.

distance covered in 12 l = distance covered in 1 l of fuel * 12

we know that distance covered by here in 1 l is 11 km.

so distance covered in 12 l of fuel = 11*12 = 132 km.

table 3 represents a direct variation function. : )