
Justin D. answered 01/21/20
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If 40 tickets were the total amount of all tickets and child tickets were 45% of the total tickets we would convert the 45% into a decimal. 45% as a decimal would be 0.45. The word "of" is used with multiplication. So, 45% of 40 is 0.45 x 40 = 18. They sold 18 child tickets. Hope this helps!