Answer:
179.159
Step-by-step explanation:
Given the sequence :
50, 60, 72,..
The sequence given is a geometric sequence :
For a geometric sequence ;
ar^(n - 1)
a = first term
r = a2 / a1 = 60 / 50 = 1.2
The 8th term ; n =8
a8 = ar^(n - 1)
a8 = 50*1.2^(8 - 1)
a8 = 50*1.2^7
a8 = 50*3.5831808
a8 = 179.15904
a8 = 179.159 (nearest thousandth )
27 quarters because 27 multiplied by $0.25 for the amount each quarter is worth is $6.75 meaning that the rest 41 coins would be Nickels multiplied by $0.05 the amount a nickel is worth giving us $8.80 dollars.
I probably said that in a confusing way sorry but the answer is (27 quarters)
Answer:
252
Step-by-step explanation:
9 x 20 = 180
9 x 28 = 252
2.57982211163 is the answer
<span>P(At least one sum of 8) = 1 - P(No sums of 8)
P(At least one sum of 8) = 1 - (1 - 5/36)^2
P(At least one sum of 8) = 1 - (31/36)^2
P(At least one sum of 8) = 1 - 961/1296
P(At least one sum of 8) = 335/1296
So the answer is choice B
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