Problem A group of families are getting together to go to a play. All together there are 50 individuals attending the play.
Child tickets cost $5 and adult tickets cost $7.
The group spent a total of $290 on tickets.
.Write the two linear equations that represent this situation. Make sure to identify your variables.
Determine the number of children and adults that were present in the group.

20335+282=20617

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.  

answer: bea's uncle is 25 years old.

step-by-step explanation:

given the equation , we can say that the variable "x" represents the age of bea's uncle. then to find his age, we need to solve for "x":

we must add 15 to both sides of the equation:

now we need to divide both sides of the equation by 3:

therefore, we can conclude that bea's uncle is 25 years old.