You need to use a common denominator. The least common denominator of 11 and 22 is 22.
3/22 + -1/11 = 3/22 + -2/22 = 3/22 - 2/22 = 1/22
240÷15=16 seats at each table
Since there were 15 tables and 240 in total you have to divide to find the number of seats at a table
Answer:
12
Step-by-step explanation:
side 1: 4
side 2: 6
6*4*(1/2)
12
Answer:
20% mark up
Step-by-step explanation:
[(48-40)/40]×100%= 20%
