Currently, nora is 3 times as old as damon. in 8 years, she will only be 2 times as old as damon. how old will damon be in 8 years? a. 8 years old b. 16 years old c. 24 years old d. 32 years old

16 years old

Step-by-step explanation:

D=Damon     N=Nora     N=3D

3D-8=2D

D=8

Currently Damon is 8

I 8 years will be 16

Nora now is 24(8*3)

In 8 years will be 32 (3*8)

Damon will be 16 years old in 8 years time

The following equations can be derived from the question

N = 3D equation 1

N  = 2D + 8 equation 2

Where:

N = Nora's age

D = Damon's age

Because N is the subject of the formula in equation 1 and 2, they can be equated

2D + 8 = 3D

Combine similar terms

3D - 2D = 8

D = 8

In 8 years, Damon would be : 8 + 8 = 16 years old

A similar question was solved here: link

366

step-by-step explanation:

the answer is; biodiversity resulting from few ancestors

adaptive radiation occurs when a population is subjected to a large natural environment with spatial ecological variations. the parts of the population in the different ecologies begin to adapt to their local environments. due to non-random mating across the large populations, this causes the different populations from the large population to speciate within their local environments. they, therefore, diverge to different species sharing a common ancestor.