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elena55 [62]
2 years ago
13

Annie brought nickels, dimes and quarters to the store. If she has at least one of every coin, they add up to $1.00, and Annie h

as 15 coins total, what is the probability that one coin at random is a nickel? Lots of points, and will give brainliest! Please help!
Mathematics
2 answers:
mojhsa [17]2 years ago
5 0
She has 1 quarter, 1 dime and 13 nickels. So the probability that one coin at random is a nickel is 13/15.

My work:

1$= 100

1 quarter=25

1 dime=10

1+1+13= 15

25×1= 25

10×1= 10

5×13= 65

65+25+10= 100
a_sh-v [17]2 years ago
3 0

Answer:

13/15

Step-by-step explanation:

she has at least one of every coin, they add up to $1.00, and Annie has 15 coins total

15-1 nickel -1 dimes -1 quarter=12 coins

$1-0.05-0.1-0.25=$0.6

cuz 12*0.05=0.6

13 nickels + 1 dimes + 1 quarter is the only possible combo.

pro (1 coin is nickel)=no of nickels/total no. of coins

=13/15

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