Answer:
There are 111 blue bags
Step-by-step explanation:
Let
x ----> the number of black bags
y ---> the number of blue bags
we know that
isolate the variable y
-----> equation A
----> equation B
substitute equation B in equation A
therefore
yltkh
ewgeg
From the diagram you can see that for all
This means that function is constant on the interval
Answer: correct choice is C.
Multiply total students by the percentage:
600 x 80% = 600 x 0.80 = 480
480 students want more field trips.