Last night, 80 people attended a lecture at the Smithville Public library. 47 of the attendees were men. What ratio BEST represe
2 answers:
Answer:
47 : 33 (men to women)
Step-by-step explanation:
Great question, it is always good to ask away and get rid of any doubts that you may be having.
To begin solving this problem we first need to calculate the amount of women that attended the lecture. Since there are a total of 80 people in which 47 are men then,
We now know that there are 33 women. therefore the ratio of men to women is 47 : 33 , Since this is the most simplified we can make it then this is the final and best ratio we can make.
I hope this answered your question. If you have any more questions feel free to ask away at Brainly.
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Answer:
First option:
Second option:
Fourth option:
Step-by-step explanation:
Rewrite each equation in the form and then use the Discriminant formula for each equation. This is:
1) For :
Then:
Since this equation has no real solutions, but has two complex solutions.
2) For :
Then:
Since this equation has no real solutions, but has two complex solutions.
3) For :
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4) For :
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Answer:
% Remaining
And replacing the value t =5.5 hours we got:
% Remaining
Step-by-step explanation:
Previous concepts
The half-life is defined "as the amount of time it takes a given quantity to decrease to half of its initial value. The term is most commonly used in relation to atoms undergoing radioactive decay, but can be used to describe other types of decay, whether exponential or not".
Solution to the problem
The half life model is given by the following expression:
Where A(t) represent the amount after t hours.
represent the initial amount
t the number of hours
h=2.6 hours the half life
And we want to estimate the % after 5.5 hours. On this case we can begin finding the amount after 5.5 hours like this:
Now in order to find the percentage relative to the initial amount w can use the definition of relative change like this:
% Remaining =
We can take common factor and we got:
% Remaining
And replacing the value t =5.5 hours we got:
% Remaining