Question 798927: Joel's family has four more pets than Brian's family. Together the two families have at least 7 pets. Let x represent the number of pets Brian's family has. Which inequality can be used to find the possible numbers of pets Brian's family has?
Answer by aoifepuc(1)   (Show Source):
You can put this solution on YOUR website! x≥3
Y represents the number of pets in Joel's family and x represents the number of pets in Brian's family. Because we know that y=4+x, and that the combined number has to equal 7 or greater, we subtract 7-4=3. There for the minimum value for x is three. In the question, it states "at least 7 pets" so we know that both x/y may equal more than 7. So we use a ≥ sign to show that the number of pets in Brian's family may be three, or more.
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