2006-09-20 05:23:45 · 14 answers · asked by damilola o 1 in Science & Mathematics ➔ Mathematics
176 -93=
2006-09-20 05:25:59 · update #1
5 - 1.5 = 3.5
3.5 - 1.5 = 2
2 - 1.5 = 0.5
So the answer is 1/2
2006-09-20 05:24:40 · answer #1 · answered by Walter W. Krijthe 4 · 1⤊ 0⤋
1/2
2006-09-21 00:46:01 · answer #2 · answered by Charlene 2 · 0⤊ 0⤋
1/2
2006-09-20 05:28:08 · answer #3 · answered by mawi 2 · 0⤊ 0⤋
This is an Arithmetic progression, a sequence of numbers such that the difference of any two successive members of the sequence is a constant.
The formula to use is:
an = a1 + (n-1)d
where: an is the nth number
a1 is the first number in the progression
d is the common difference
so from your question,
a1 = 5
d = -1 1/2 or -1.5 (since the sequence is decreasing)
n = 4 (4th number in th sequence)
substitute:
an = a1 + (n -1) d
a4 = 5 + (4 - 1) (-1.5)
a4 = 5 + (-4.5)
a4 = 0.5 or 1/2
Of, course, once you know the common difference, you can just subtract that from each term.
The formula is helpful if you're looking for a lot of numbers, like if you're required to look for the 100th term in the sequence.
2006-09-20 05:46:30 · answer #4 · answered by augel 2 · 1⤊ 0⤋
Probably 1/2. The difference between the first three numbers is 1 1/2, so take off another from 2...
2006-09-20 05:25:49 · answer #5 · answered by Anonymous · 0⤊ 0⤋
the anwer is 1/2
5 = 10/2
3 and a 1/2 = 7/2
2 = 4/2
10/2 - (3/2) = 7/2, 7/2 - (3/2) = 4/2, so 4/2 - (3/2) = 1/2
Boy i figured this out in seconds...
2006-09-20 21:26:57 · answer #6 · answered by marionette_presto 3 · 0⤊ 0⤋
the series is an arithmetic progression with a common difference of -1.5
So, 5, 3.5, 2, 0.5
The next number is 1/2.
2006-09-20 06:10:42 · answer #7 · answered by noesis 2 · 0⤊ 0⤋
1/2???
2006-09-20 05:25:59 · answer #8 · answered by Muy Buena 4 · 0⤊ 0⤋
I assume it is 1/2, since this was a question asked on an IQ test.
2006-09-20 05:28:56 · answer #9 · answered by naturalbornthriller69 2 · 0⤊ 0⤋
1/2 seems obvious - but there has to ba a catch somewhere!
2006-09-20 05:27:45 · answer #10 · answered by wee stoater 4 · 0⤊ 0⤋