supply the missing numbers:
1. 15,7, _, -9, _
2. 7, 11, _, _, 23
3._, 5x,8x, _, 14x
4. _, 17, 15, 13, 11, _
1. 15,7, _, -9, _
2. 7, 11, _, _, 23
3._, 5x,8x, _, 14x
4. _, 17, 15, 13, 11, _
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Answer:
Supply the missing numbers:
1. 15, 7, - 1, -9, - 17
common difference: 8
2. 7, 11, 15, 19, 23
common difference: 4
3. 2x, 5x, 8x, 11x, 14x
common difference: 3
4. 19, 17, 15, 13, 11, 9
common difference: 2
binibiningrina's tip: You can use the common difference to justify my answers. :)
A simple thank you will do. <3