Question

While sorting some change into piggy banks, Gabby put 58 coins in the first piggy bank, 78 coins in the second piggy bank, 98 coins in the third piggy bank, and 118 coins in the fourth piggy bank. What kind of sequence is this?

arithmetic or geometric

Answer 1

Answer: Arithmetic (increasing by constant rate of 20)

Explanation:

Arithmetic means the difference between two consecutive terms is constant which it is in this case because it constantly increases by a value of 20.

Geometric means the sequence is changing by a constant ratio or factor