Its B because is a situation where we note the rate at which the number of population was changing before the study
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andrew8253
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Answer:
The rate is 15 minutes per meter.
Step-by-step explanation:
It takes 9 minutes to fill a depth of meters.
Filling meters take 9 minutes time.
Filling 3 meters of the aquarium takes = 45 minutes time (Multiplying by 5 both the numbers).
In order to fill 1 meter of the aquarium it will take minutes (Dividing by 3 both the numerical values).
To solve this, you need to isolate/get the variable "n" by itself in the equation:
132 = 3(5n + 4) First divide 3 on both sides
44 = 5n + 4 Subtract 4 on both sides
44 - 4 = 5n + 4 - 4
40 = 5n Divide 5 on both sides to get "n" by itself
8 = n
PROOF
132 = 3(5n + 4) Substitute/plug in 8 into "n" since n = 8
132 = 3(5(8)+4)
132 = 3(40 + 4)
132 = 3(44)
132 = 132
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hope this will help
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