Megan starts eating breakfast at 9:54 AM. Tell what time she is done with breakfast if she takes the given number of minutes to
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Answer:
We have to add 1.86 L of water to make the solution 7% saline.
Step-by-step explanation:
The concentration of a saline solution is given by
C(x) =
where x represents the amount of water used to dilute the solution.
We have to find how much water must be added to obtain a solution that is 7% saline.
If we see the equation we notice that as we add the value of x, the concentration of the solution decreases.
Here C(x) = 0.07
0.07 =
Rearranging,
1 + x =
1 + x = 2.86
x = 1.86 L
We have to add 1.86 L of water to make the solution 7% saline.
0.7 is the new probability of the event being sold out given that total number of events is 7 and 5 events are sold out. This can be obtained by using the formula for probability.
<h3>Find the new probability of the event being sold out:</h3>Probability is the chance of occurrence of an event.
⇒ The formula for finding probability,
Probability =
Here it is given in the question that,
- Total number of outcomes = Total number of events = 7
- Number of events sold out = 5
- Number of events not sold out = 2
Therefore by using the formula of probability we get,
⇒ Probability (Junior Athletics being sold out) =
Probability (Junior Athletics being sold out) =
Probability (Junior Athletics being sold out) = 5/7
⇒ Probability (Junior Athletics being sold out) = 0.7
Hence 0.7 is the new probability of the event being sold out given that total number of events is 7 and 5 events are sold out.
Learn more about probability here:
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