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Salina has four pennies and three dimes in her pocket. She selects one coin from her pocket. What are the chances the coin is a penny? 1 out of 7 4 out of 7 4 out of 3 3 out of 7
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Feb 21, 2016
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Salina has four pennies and three dimes in her pocket. She selects one coin from her pocket. What are the chances the coin is a penny?
1 out of 7
4 out of 7
4 out of 3
3 out of 7
Mathematics
middle-school
Konstantin Grigorov
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Konstantin Grigorov
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the answer is
4 out of 7
add the number of pennies and dimes 4+3=7 and there are 4 pennies 4/7
FMK
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Feb 21, 2016
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FMK
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2
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So,
The sum of the total number of pennies and dimes is 7.
Since there are 4 pennies, the probability of selecting a penny is
.
That is the second option.
Alexandr Viniychuk
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Feb 28, 2016
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Alexandr Viniychuk
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