Question

what is the 10th nTh term for this sequence: 1,3,5,7........(it doesnt seem to work and i think i got it wrong so if you can help me) rule is 2n-1

Answer 1

Explanation:

n = 1; 1st = 2*1–1=1;

n= 2; 2nd =2*2–1=3;

n =3; 3rd =2*3–1=5;

n=4; 4th =2*4–1=7;

n=5; 5th =2*5–1=9;

n=6; 6th =2*6–1=11;

n=7; 7th = 2*7-1= 13

n= 8; 8th = 2*8-1 =15

n = 9; 9th = 2*9-1 = 17

n= 10; 10th = 2*10-1 =19

Answer 2

the 10 th term for the sequence 1,3,5,7..... is 19