4 adults and 3 children cost $40. Two adults and 6 children cost $38

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4 adults and 3 children cost $40. Two adults and 6 children cost $38

Givens and Assumptions:

• Let the number of adults be a
• Let the number of children be c
• Cost = Price * Quantity

We're given 2 equations:

1. 4a + 3c = 40
2. 2a + 6c = 38

We can solve this system of equations 3 ways

• Substitution Method
• Elimination Method
• Cramer's Rule

No matter what method we use, we get:

• a = 7
• c = 4