Ratio: 303 million to 7.7 billion. Divide 303 million by 7.7 billion ?...
Answer: -416/1575
Step-by-step explanation:



Question- What is the difference of finding the number of outcomes vs finding the probability?
Answer- Probability is a mathematical way of calculating how likely an event is to occur. The number of favorable outcomes is the number of choices and the probability is found by comparing this to the total number of outcomes
x + 2y = 9
x + 3y = 13
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Solve for x in the first equation. Subtract 2y from both sides.
x = 9 - 2y
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Plug x into the second equation.
(9 - 2y) + 3y = 13
Combine like terms.
9 + y = 13
Subtract 9 from both sides.
y = 4
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Plug y back into the first equation.
x + 2(4) = 9
x + 8 = 9
Subtract 8 from both sides.
x = 1
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x = 1
y = 4
The answer is:
explaination: