21 x 3 = 63
These pairs of numbers when multiplied equal 168: (1, 168) (2, 84) (3, 56) (4, 42) (6, 28) (7, 24) (8, 21) (12, 14)
3 squared is 3 to the 2nd power, or 3 multiplied by 33 squared=3x3=93 cubed is 3 to the 3rd power or 3 multiplied by 3 multiplied by 33 cubed=3x3x3=27
15x
3c
2x-3=10x+21 2x-3-2x=10x+21-2x -3=8x+21 -3-21=8x+21-21 -24=8x -3=x
The sequence 7, 21, 63, 189, and 567 can be described as each term being multiplied by 3 to get the next term. Specifically, 21 is 7 multiplied by 3, 63 is 21 multiplied by 3, 189 is 63 multiplied by 3, and 567 is 189 multiplied by 3. Thus, the formula for the nth term can be expressed as ( a_n = 7 \times 3^{(n-1)} ).
3*7 = 21
The GCF of 21 and 90 is 3.
21 multiplied by 3 is 63.
1 x 21, 3 x 7, 7 x 3, 21 x 1
1 x 21, 3 x 7, 7 x 3, 21 x 1
1 x 21, 3 x 7
10
2/7 * 21/50 = 3/25
The prime factorization of 21 is 7 * 3 or 7 x 3 or 7 multiplied by 3. Hope this helps!
1 x 3 x 7
21 x 3