Mallory has $9 to buy lollipops that cost $0.35 each. What is the greatest number of lollipops she can buy?
1 answer:
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In order to make them perpendicular, their dot product must result in zero. so:
Given:
Joining fee = $28
Fee of each event = $4
To find:
Total cost for someone to attend 4 events.
Solution:
Let the number of events be x and total fee be y.
Fee for 1 event = $4
Fee for x events = $4x
Joining fee remains constant. So, the total fee is
Substitute x=4 in this equation.
Therefore, total cost of 4 events is $44.