The teacher gave this pattern to the class: the first term is 5 and the rule is add 4, subtract 1. Each student says one number. The first student says 5. Victor is tenth in line. What number should Victor say?
Each student says one number, so the answer is 21.
5+4=9 1st person
9-1=8
8+4=12
12-1=11
11+4=15
15-1=14
14+4=18
18-1=17
17+4=21
35 is not an option your choices are 17 19 20 and 21
Each student says one number, so the answer is 21.
5+4=9 1st person
9-1=8
8+4=12
12-1=11
11+4=15
15-1=14
There is no answer.
what the hell is the answer
Each student says one number, so the answer is 20.
5+4=9 1st person
9-1=8 2nd
8+4=12 3rd
12-1=11 4th
11+4=15 5th
15-1=14 6th
14+4=18 7th
18-1=17 8th
17+4=21 9th
21-1=20 10th
21
20, of course
IF each student says "one" number wouldn't Victor say 12? Or did I completely oversimplify the pattern...
"the rule is add 4, subtract 1" ---> in effect is adding 3
term(n) = 5 + 3n
so term(10) = 5 + 3(10) = 35
Emma is correct