Answer :
7 rolls of blue tickets were ordered by the student council.
What is an equation?
An equation is an expression that shows the relationship between two or more numbers and variables.
Let x represent the number of blue tickets. 1550 tickets were ordered of which 150 were golden, hence:
x = 1550 - 150
x = 1400
Since each blue ticket is in roll of 200, hence:
Number of roll = 1400 / 200 = 7
7 rolls of blue tickets were ordered by the student council.
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