3 Baseball cards come in packages of 8 and 4 Baseball cards come in packages of 12
or
He bought 6 Baseball cards come in packages of 8 and 2 Baseball cards come in packages of 12.
Step-by-step explanation:
On the condition that he bought some of each type for a total of 72 baseball cards, then the numbers bought must be factors of 72. To start, the lowest common multiple of 8 and 12 is 24. 24 divided by 8 and 12 gives 3 and 2 respectively. 24 out of 72 leaves a remainder of 48. 48 divided by 8 and 12 gives 6 and 4 respectively.
As such, if Brighton bought some of each type for a total of 72 baseball cards then he either bought 3 Baseball cards come in packages of 8 and 4 Baseball cards come in packages of 12 or he bought 6 Baseball cards come in packages of 8 and 2 Baseball cards come in packages of 12.
When the lines are parallel, there are no solutions, and sometimes the two equations will graph as the same line, in which case we have an infinite number of solutions.
