91 divided by 6 is 15 with remainder 1.
7 x 13 = 91
91
91 = 7 x 13
91
If there are 14 rows in the triangle, then there are 14*(14-1)/2 coins in the arrangement, i.e. 91 dimes. To find the value of the collection, simply multiply by the value of a dime. I believe this is 10 cents, so the coins are worth 910 cents, or $9.10.
0.5181347150259067
The probability of flipping 91 coins and getting a head 91 times in a row is 1/291 or (1/2)91 or 4.039E-28. The (1/2)91 is when there is exactly 91 coin tosses or n = 91. As the number of trials increases so does the probability of at least 1 run of length 91. The average number of coin flips to see 91 in a row is 4.951760157141521e+27
91 cents or 3 stamps of 44 cents ea.
91% copper
On average, a pound of coffee cost around 91 cents. A loaf of bread was 24 cents and a pound of butter was 86 cents.
91 divided by 6 is 15 with remainder 1.
Less than 10 cents.
Is worth less than 25 cents.
a dozen eggs cost 20 cents in the 1970'
1 and 91 will do. 45 years, six months too.
Less than 30 cents.