4n/15 + n/14 = (4n x 14 + 15n)/210 = 71n/210
15
1.2PARTIAL SOLUTION:7/9 = 14/15n7(15n) = (14)(9)105n = 126n = 1.2
n*3; n-1 {Where "n" is the previous answer starting at 1. 1, 1*3=3, 3-1=2, 2*3=6, 6-1=5, 5*3=15, 15-1=14, 14*3=42, 42-1=41.
n plus 15.n plus 15.n plus 15.n plus 15.
4n/15 + n/14 = (4n x 14 + 15n)/210 = 71n/210
N-14 and N-15 are both stable.
yes
Nitrogen has two stable isotopes: N-14 and N-15 and 14 radioactive isotopes.
Georgia
-14
This is an arithmetic sequence which starts at 14, a = 14, and with a common difference of -1, d = -1. We can use the nth term formula an = a + (n - 1)d to get an = 14 + (n - 1)(-1) = 14 - n + 1 = 15 - n.
15
The sequence is: n = n - 2 n = n - 1 n = n * 2 n = n + 1 repeat So, 10, 8, 7, 14, 15, 13, 12, 24, 25, 23, 22, 44, 45, etc...
1.2PARTIAL SOLUTION:7/9 = 14/15n7(15n) = (14)(9)105n = 126n = 1.2
14/n where n is the number.14/n where n is the number.14/n where n is the number.14/n where n is the number.
N-15 has 8 neutrons and N-14 has 7 neutrons.