Ninety-nine decreased by 4/5 of 80 is the same as 5/8 of what number?
2 answers:
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Use the formula for an arithmetic sequence:
= nth term
a = the first term in the sequence
n = term you are looking for
d = common difference between the terms
Answers
1. <em>I'm assuming you meant to type 0.2, 0.6, 1, 1.4...</em>
In that case, it is increasing by 0.4, so the next three would be:
0.2 + (4-1)(0.4) = 1.8...
=> 1.8, 2.2, 2.6.
2. Here it's reducing by 0.25, so start with:
4 + (5-1)(-0.25) = 3...
=> 3, 2.75, 2.5