Which table shows a proportional relationship between x and y?
1 answer:
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Answer:
n = 8
Step-by-step explanation:
This is a geometric sequence where the sum to n terms is
=
where a is the first term and r the common ratio
r = 6 ÷ 2 = 18 ÷ 6 = 54 ÷ 18 = 3 and a = 2, thus
= 6560
= 6560 ← cancel the 2
- 1 = 6560 (add 1 to both sides )
= 6561
note that 6561 = , hence
=
⇒ n = 8
The total number of copies that have been sold till date are: 517284
Step-by-step explanation:
Let x be the total number of copies sold
Then
41900 is 801 percent of x
This can be mathematically written as
Rounding off to nearest whole number
517284
Hence,
The total number of copies that have been sold till date are: 517284
Keywords: Percentage, Percent
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