Bob has 1.5 pounds of nails. If there are 80 nails in a pound, how many nails does Bob have?
2 answers:
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Answer:
11
Step-by-step explanation:
Hello,
Given the original number n.
Multiply the number by 9.
Add 99.
Divide this sum by 9.
Subtract the original number, n, from the quotient.
Thank you.
Answer:
Step-by-step explanation:
Urn U1: 3 red and 2 yellow marbles, in total 5 marbles.
The probability to select red marble is
Urn U2: 3 red and 7 yellow marbles, in total 10 marbles.
The probability to select red marble is
Urn U1: 1 red and 4 yellow marbles, in total 5 marbles.
The probability to select red marble is
The probability to choose each urn is the same and is equal to
Thus, the probability that the marble is red is