C because this is the right answer
Answer:
Project: Soil Microbiology Laboratory.
Explanation:
TEST
The soil microbiogy laboratory aims to help in the identification, characterization of microorganisms that help in the fertilization of soils and agricultural crops, for this it must have all the necessary materials such as bioreactors, laboratory material (petri dishes, incubators , crops, etc.), and all other sanitary conditions suitable for its correct implementation.
Countries that require or are international producers of agricultural crops, where they lack adequate conditions for good fertilization, may need this implementation, for example: Cameroon, Indonesia.
Answer:
Van can carry 15 and bus 51 students
Explanation:
Let's mark the number of vans with x and number of buses with y.
That allows us to write equations:
1) 11x + 9y = 624 (high school A)
2) 5x + y = 126 (high school B)
This means that we have a system of the equations with two unknowns.
We can use x or y to solve this. Let's use x, but first we need to express y through x. We said that:
5x + y = 126
That means that:
y = 126 - 5x
Now, let's plug this in the equation 1):
11x + 9(126 -5x) = 624
11x + 1134 - 45x = 624
-34x = -510
34x = 510
x = 15
So, if x is 15, let's plug it in any of the two equations:
5x + y = 126
75 + y = 126
y = 51
So, a van carry 15 and a bus 51 students.
