The Greatest common factor of 85 and 102 is 17. (17x5=85 and 17x6=102)17
yes. 17x6= 102. 12x6= 72 17 over 12 x 6 over 6 = 102 over 72
17x1=17 17x2=34 17x3=51 17x4=68 17x5=85 17x6=102 17x7=119 17x8=136 17x9=153 17x10=170
Arithmetic mean means that you need to add all the numbersand divide the sum by the number of numbers listed in the problem. Therefore you add 8+12+15+21+11+x= 67 + x Now you multiply 6 times 17, (because there are 6 numbers in the problem which are 8,12,15,21, and 11) 17x6=102 Now: 67+x=102 Solve for x 67+x=102 -67 -67 --------------- x= 35