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r-ruslan [8.4K]
3 years ago
12

The tickets in a box are numbered from 1-20 inclusive. If a ticket is chosen at random and replaced, and then a second ticket is

drawn at random, what is the probability that the sum of their numbers is even?
Mathematics
1 answer:
ozzi3 years ago
3 0
7 + 5 = 12 so is an even number that the ticket the choose
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Find the number, 112/ 100 of it is 56
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First let that number be y.
List the equation by the given info.
y x 112/100 = 56
Shift y to the other side by turning it to ÷y.
112/100 = 56/y
Use cross method,
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5600 = 112y
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Therefore that number is 50
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