Ascience test, which is worth 100 points, consists of 24 questions. each question is worth either 3 points or 5 points. if x is the number of 3-point questions and y is the number of 5-point questions, the system shown represents this situation. x + y = 24 3x + 5y = 100

Let the value of 3-points questions be x.
The value of 5-point questions be y.
x + y = 24
Then x = 24 - y which makes 3x + 5y = 100
3(24 - y) + 5y = 100
72 - 3y + 5y = 100
Lets get the ys together, 72(-3y + 5y)  = 100
72 + 2y = 100
The value of y = (100 - 72) = 2y
2y = 28
y = 14.
If y is equal to 14, what about x?
x = 24 - y
x = 24 - y
x = 24 - 14
x = 10.
The value of 3-points questions is 10, and the value of 5 points questions is 14.

Competition. interaction among organisms that compete for the same natural resource (food, shelter, water, space) in an ecosystem. predation. an interaction in which one organism kills another for food. predator. prey. symbiosis. mutualisum. commensalisum. parasitisum.

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Cartificial intelligence