A carpet salesman sold 5,000 yards of carpet in one month at an average of $3 per yard. His commission was 16%. How much money d
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Answer:
30%
Step-by-step explanation:
first we require both quantities to have the same units
converting both to minutes
1 h 3 min = 60 + 3 = 63 min
3h 30 min = (3 × 60) + 30 = 180 + 30 = 210 min
then express as a fraction and multiply by 100% to express as a percentage
× 100%
= 0.3 × 100%
= 30%
Check the forward differences:
-1 - 1 = -2
-7 - (-1) = -6
-25 - (-7) = -18
Notice how the differences appear to follow a geometric progression with common ratio 3. So if denotes the
th term in the given sequence, we seem to have
so that the general pattern for would be
Then the sequence is given recursively by
The first 10 terms in the sequence would be
1, -1, -7, -25, -79, -241, -727, -2185, -6559, -19681