21x + 9 = 180 21x = 180 - 9 21x = 171 x = 171/21 x = 8.143
It is 21x.
21%
21/100 = 0,21
Name the two numbers x & y , you can form these equations:x + y = 21x - y = 19Solve the system by substitution:x - y = 19 --> x = 19 + y19 + y + y = 2119 + 2y = 212y = 2y = 1But, X + y = 21X + 1 = 21x = 20
21x + 9 = 180 21x = 180 - 9 21x = 171 x = 171/21 x = 8.143
121
It is 21x.
45
21%
21/100 = 0,21
Pumpkin (16+21+13+16+11+9+14=100) Attitude (1+20+20+9+20+21+4+5=100)
Name the two numbers x & y , you can form these equations:x + y = 21x - y = 19Solve the system by substitution:x - y = 19 --> x = 19 + y19 + y + y = 2119 + 2y = 212y = 2y = 1But, X + y = 21X + 1 = 21x = 20
x+20x = 60000 21x = 60000 x = 60000/21 = 2857.'142857' recurring
100
21 and 5
21/100 plus 52/10 = 541/100 or 5.41