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ki77a [65]
3 years ago
11

Form a sequence that has two arithmetic means between -1 and 59.

Mathematics
2 answers:
Oksanka [162]3 years ago
7 0
The formula for solving the problem is as follow:
an = a1 + (n - 1)d
Where:
n = number of figure in the sequence = 4
d = difference between successive number =?
a1 = -1
a4 = 59
Insert the given values into the formula,
59 = -1 + (4 - 1)d
59 = -1 + 3d
59 + 1 = 3d
60 = 3d
d = 60/3 = 20
Therefore, d = 20. This implies that, there is a difference of 20 between successive numbers.
The number sequence is as follow:
-1, 19, 39, 59.

Stels [109]3 years ago
7 0
<span><span>two arithmetic means between -1 and 59.
</span>b.-1, 19, 39, 59</span>
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