Natalie has a change purse full of coins. She has 13 pennies, 15 dimes and 22 nickels. If she takes a coin out of her purse, without looking, the probability that it will be a penny is?
13/(13+15+22) = 13/50
To find the probability that Natalie will draw a penny from her purse, we need to calculate the ratio of the number of pennies to the total number of coins.
The total number of coins in Natalie's purse is the sum of the number of pennies, dimes, and nickels:
Total number of coins = 13 pennies + 15 dimes + 22 nickels = 50 coins
The probability of drawing a penny is the number of pennies divided by the total number of coins:
Probability of drawing a penny = 13 pennies / 50 coins = 0.26 or 26%
So, the probability that Natalie will draw a penny from her purse is 26%.
To find the probability that Natalie will pick a penny from her change purse, we need to divide the number of pennies by the total number of coins she has.
First, we find the total number of coins:
Total number of coins = Number of pennies + Number of dimes + Number of nickels
Total number of coins = 13 (pennies) + 15 (dimes) + 22 (nickels)
Total number of coins = 50
Next, we find the probability of picking a penny:
Probability = Number of pennies / Total number of coins
Probability = 13 / 50
Probability = 0.26
Therefore, the probability that Natalie will pick a penny from her change purse is 0.26, which can also be expressed as 26%.