Sam would have to purchase 42 cans of dog food each week.
Determine what the question is asking. Write down the relevant information in simple statements. Assign symbols to unknown values that need to be found. Determine how the statements relate to each other mathematically.
To find the answer we can set up an equation : 3 (x) (d)
x = number of cans each dog eats
d = the number of days in a week.
Thus,
Number of Cans to purchase = 3 (2) (7)=42
Therefore, Sam would have to purchase 42 cans of dog food each week.
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