You can multiply 6.25 by 2 (which is 12.5) to find how much money he had before he bought the sandwich. Then you can find how much money he had before buying the DvD by multiplying 12.5 by 8/3 which is 33.33 dollars. Therefore Jake started with 33.33 dollars.
(you can prove this since 3/8 of 33.33 is 12.5 and 1/2 of that is 6.25)
I hope this helps. Let me know in the comments if anything is unclear.
The probability that the person uses exactly one of the facilities = 95/130 .
<h3>What is Probability ?</h3>
Probability is the branch of Mathematics which helps to determine the likeliness of an event to happen.
The data is given and the probability that the person uses exactly one of the facilities is asked
73 people use the gym. P(G)
62 people use the swimming pool. P (S)
58 people use the track. P (T)
22 people use the gym and the pool. P (G ∩ P)
29 people use the pool and the track. P (P ∩ T)
25 people use the gym and the track. P (G ∩ T)
11 people use all three facilities. P (P∩G∩T)
P (PUGUT) = P(G) + P (S) + P (T) - P (G ∩ P) - P (P ∩ T) - P (G ∩ T) - 2 P (P∩G∩T)
73 + 62 + 58 -22-29-25 -11-11 = 95
The probability that the person uses exactly one of the facilities = 95/130 .
To know more about Probability
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Each of the ¨wave crests ¨, if you will, represents the average, or that most people of that grade fall into that category. Building off of this, your answer should be somewhere around 14 inches.
By proportion:-
4 / 30 = x / 75 where x is number needed for the '75' country
30x = 300
x = 10
They need 10 drivers.
7 -3 2/5
= 7 -17/5
= 35/5 -17/5 (common denominator is 5)
= 18/5
= 3 3/5
The final answer is 3 3/5~