In a Geometric Sequence,<span> each term is found by </span>multiplying<span> the previous term by a </span>constant<span>. For this case, the constant is 4. To find the sum of the geometric sequence with 8 terms, we use the formula as follows:
</span>∑(ar^k) = a ( 1-r^n) / (1-r)
<span>
where a is the first term, r is the constant, n is the number of terms
</span>∑(ar^k) = 4 ( 1-4^8) / (1-4)
∑(ar^k) = 87380
The distance formula is: Distance = Rate x Time.
We know the distance: 2000 miles.
We know the rates: 560 and 500 mph.
We need to solve for time:
2000 = (560 + 500) * T
2000 = 1060 *T
T = 2000 / 1060
T = 1.89 hours ( 1 hour 53 minutes)
They left at noon:
12:00 pm + 1 hour and 53 minutes = 1:53 pm.
Answer:
756
Step-by-step explanation:
That's the number form of those words.
