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Answer:
The 3-day pass costs $16.67 more per day than the 7-day pass.
Step-by-step explanation:
The easiest way to do this is to find the cost of each pass for the same amount of days. To do this, we find the lowest common multiple of 3 and 7 which would be 21
Lowest common multiple =
Next we find the cost of each pass for 21 days by multiplying cost of the 7 day pass by 3, and the cost of the 3 day pass by 7
Cost of 7 day pass for 21 days =
Cost of 3 day pass for 21 days =
From this, we know that the difference between the two passes is $350 per 21 days. Since the question asks how much more would the 3-day pass cost <em>per a day</em> than the 7-day pass, we have to divide the difference by 21
We can round this to $16.67. As a result, the 3-day pass costs $16.67 more per day than the 7-day pass.