40
Each time you toss two pennies, there are four ways they can land: H H H T T H T T One of the four ways is (Heads - Heads), so the probability of 2 heads is 1/4 or 25% . If the pennies are 'fair' (not loaded), and you toss them a large number of times, you should expect 2 heads roughly 1/4 of the time. Out of 20 tosses, that's 5 times. But don't bet on it.
pennies - 100 nickels - 20 dimes - 10 quarters - 4
2000
The mass of a single penny is approximately 2.5 grams. Therefore, the mass of 20 pennies would be 20 times 2.5 grams, which equals 50 grams.
Toss a coin 20 times and see what happens.It is POSSIBLE to always get 10 heads and 10 tails...but it is not very PROBABLE.
10
Each time you toss two pennies, there are four ways they can land: H H H T T H T T One of the four ways is (Heads - Heads), so the probability of 2 heads is 1/4 or 25% . If the pennies are 'fair' (not loaded), and you toss them a large number of times, you should expect 2 heads roughly 1/4 of the time. Out of 20 tosses, that's 5 times. But don't bet on it.
5 times.When tossing 2 pennies there are 4 equiprobable outcomes or events with 1/4 ofprobability for each to happen:P(H,H) = 1/4P(H,T) = 1/4P(T,H) = 1/4P(T,T) = 1/4So if you toss 2 pennies 20 times, the "expected" number of times that 2 heads (H,H)will come up is 1/4 of the 20 times, that is 5 times.
2,000 pennies in 20 dollars (100 in 1 dollar times 20)(100x20 equals 2,000)
pennies - 100 nickels - 20 dimes - 10 quarters - 4
10 pennies...
2000
100 pennies = 1 British Pound 2,000 pennies = 20 British Pounds
To find out how many pounds of pennies equal 20 dollars, first note that one dollar is equivalent to 100 pennies. Therefore, 20 dollars equals 2,000 pennies. Since one pound of pennies contains about 181 pennies, you would divide 2,000 by 181, which equals approximately 11.05 pounds of pennies.
The mass of a single penny is approximately 2.5 grams. Therefore, the mass of 20 pennies would be 20 times 2.5 grams, which equals 50 grams.
Toss a coin 20 times and see what happens.It is POSSIBLE to always get 10 heads and 10 tails...but it is not very PROBABLE.
240- there were 12 pennies in a shilling and 20 shillings in a pound.