Mrs. wilson tells you that the next test is worth 100 points and contains 38 problems. multiple-choice questions are worth 2 points each and word problems are worth 5 points. how many of each type of question is there?

The test had  30  multiple choice questions, and  8  word problems.

Step-by-step explanation:

f we multiply the first equation by  −  2  we get

Now if we add both equations we get only equation with 1 unknown (y)

Substituting the calculated value to the first equation we get

The solution means that The test had  30  multiple choice questions, and 8  word problems.

the answers are in the images, i received 100% on this assignment. hope this !

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.