Let's have x be the number of children tickets and 2x will be the adults. Now we can set up the following equation: 5.4x+8.9(2x)=626.4 Expand this out: 5.4x+17.8x=626.4 Combine like terms: 23.2x=626.4 Divide both sides by 23.2 to get x=27
Let x represent the number of DVDs and y represents the number of CDs. DVDs are sold for 8$ and CDs are sold for 6$. If you have 50$ to buy gift cards then the following inequality should be satisfied: 8*x+6*y<50