Answer:
x=4 y=7
Step-by-step explanation:
When multiplying 3x by -2, you get -6x. -6x and 6x cross out. You're left with -2y=-2 and -2y=10.
Answer:
y=1/2x-4.5
Step-by-step explanation:
y=mx+b
Answer: 285.2 kg
Step-by-step explanation:
Given
The volume of helium in the balloon is 
The density of the helium is 
Mass of the helium gas is given by the product of density and volume

Thus, the mass of gas is 285.2 kg
Answer:
The answer is .24, or 6/24
Step-by-step explanation:
Its easiest to convert the 2 answers into decimals and then solve.