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solniwko [45]
3 years ago
3

Choose the correct answer. Average speed of Car 1 = 35 mph. Average speed of Car 2 = 55 mph. Time elapsed between start of Car 1

and start of Car 2 = 18 minutes. How long before Car 2 overtakes Car 1? hour.
Mathematics
1 answer:
SIZIF [17.4K]3 years ago
3 0
If we let x be the number of hours before Car 2 overtakes Car 1. The total time for Car 1 is x hours and 18 minutes. The distance they should cover should just be equal,
                           (35)(x+18/60) = 55x
The value of x from the equation is given above 0.525 hours or equal to 31.5 minutes. 
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Step-by-step explanation:

50% chance i guess?

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Can someone please help me with this question?
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To get the solution we are looking for we need to point out what we know.
1. We assume that 55 is 100% because its the output value of the task.
2. We assume that the x is the value we are looking for. 
3. If 100% = 55 so we can write it down as 100%=55 
4. We know that x% = 44 of the output value so we can write it as x%=44.
5. Now we have two simple equations: 1) 100%=55 2) x%=44 where left sides of both of them have the same units and both right sides have the same units so we can do something like that 100%/x%=55/44.
6. Now we just have to solve the simple equation and we will get the answer.
7. Solution for 44 is what percent of 55 100%/x%=55/44 (100/x)*x=(55/44)*x we multiply both sides of the equation by x 100= 1.25*x we divide both sides of the equation by (1.25) to get x 100/1.25=x 80=x now we have: 44 is 80% of 55! 

Quick answer = 44 is 80% of 55
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3 0
3 years ago
A building may fail by excessive settlement of the foundation or by collapse of the superstructure. Over the life of the buildin
patriot [66]

Answer:

0.1536

Step-by-step explanation:

The computation of probability that the building failure will occur over its life is shown below:-

P(building failure) is

P(ES \cup C)\\\\ = P(ES) + P(C) - P(ES\cap C)\\\\ = P(ES) + P(C) - P(ES) P (C | ES)\\\\ = 0.12 + 0.06 - 0.12 \times 0.22

now we will solve the above equation

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After solving the above equation we will get

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