Solving an Inverse Variation Application
Real World
Connection
Boyle's law states that when considering gases, volume varies inversely with pressure. If V represents the volume of
the gas and P represents the pressure of the gas, what would the formula be that represents this relationship? Ifa
balloon has a volume of 4 L of gas with a pressure of 5 atmospheres, what will the volume be when the pressure is 3
atmospheres?
The formula is V=KP, and when P=3, V=4.
The formula is V=kP, and when P=3, V=5.
The formula is k = VP, and when P=3, V=4.
The formula is k = VP, and when P=3, V = 20
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a) one student is chosen from classroom a, then a student is chosen from classroom b.  

step-by-step explanation:

independent events are ones in which the probability of one event does not affect the probability of the second event.

one student is chosen from classroom a; this does not affect the chances of choosing a student from classroom b.   this makes these independent events.

when one card is chosen from a standard deck and then set aside before a second card is chosen, the probability of the second card being chosen changes.   this makes them dependent events.

when one student is chosen from classroom a and then a second student is chosen from classroom a, the probability of choosing the second student changes.   this makes them dependent events.

when a letter is chosen from the alphabet and then a second letter is chosen, the probability of choosing the second letter changes.   this makes them dependent events.

i think it would be 42cm

y=-2.5x+12.5

step-by-step explanation:

5y=2x+10

y=0.4x+2

slope=-2.5

5=-2.5*3+b

b=12.5