The initial term of the sequence is 15. The common difference is 3, so the n-th term (an) is
... an = 15 + 3(n-1)
For n=14, the 14th term of the sequence is
... a14 = 15 + 3(14 -1) = 54
The sum of terms is the average of the first and last, multiplied by the number of terms:
... sum = (15 + 54)/2·14 = 7·69 = 483
The appropriate answer choice is
... 54; 483
Answer:
4.8 x10^8
Step-by-step explanation:
Answer:
The ratio of beaks to wings in a flock of birds is 1:2.
Step-by-step explanation:
Consider the provided information.
Beaks are the hand and pointed structure that sticks out from a bird's face.
The number of beaks of a bird is one and the number of wings is two.
We need to find the ratio of beaks to wings in a flock of birds
Thus the ratio of beaks to wings in a flock of birds is 1:2.
This shows that there's one beak for each pair of wings.
The original price of the tablet, before the 45% off was applied, was approximately $209.54.
To find the original price of the tablet, we have to understand that the 45% off coupon reduced the price to $115.25, which represents 55% (100% - 45%) of the original price. Hence, we can set up the maths, using the principle of the proportion as follows:
55/100 = $115.25/ORIGINAL PRICE
Cross multplying the fractions and dividing, gives us the original price:
ORIGINAL PRICE = (100 * $115.25)/ 55 = $209.54 rounded to the nearest cent.
So, the original price before the discount was applied should have been approximately $209.54
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