i am doing the arithmetic sequences, if i have .25 as my first term and .5 as my second term , what is the number that gets me from .25 to .5 ?
.5 - .25=.25 That's the difference from 1st. term to 2nd.term. Because .25 + .25=.5, which is your second term.
+130514 We can solve like this
a2 = a1 + d(n - 1) where a2 is the second term, a1 is the first term and n is the nth term [2 in this case] and d is what we're looking for [ the common difference]
So we have
.5 = .25 + d(2 -1)
.5 = .25 + d subtract .25 from each side
.25 = d and this is the common difference....or.....the number that gets you from the first term to the second...... [ and from the second term to the third, etc.]
