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Help needed for maths.Please?

Help needed for maths.Please? Topic: Math homework for middle school
May 25, 2019 / By Hattie
Question: My son who is at middle school has been given a couple of maths questions for homework and one them i cant even figure out. So i would appreciate some help.Thanks -- Venus williams is the fastest woman server in the game of tennis today. She has served the ball at the speed of 206 km/h (57.2 m/s) The ball travels the length of the court a distance of 23.77 m. Calculate the time taken for the ball to travel the length of the court. -show all your working.
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Best Answers: Help needed for maths.Please?

Dorcia Dorcia | 8 days ago
im in middle school to. im going into 8th grade and doing 10th grade math. math i love,easy. ok so hes suppose to use the equation s=d/t which is .... speed equals distance over time. since you are trying figure out the time taken use a variable to substitute the time(im using X) 57.2=23.77/x so that is 57.2=23.77 divided by X good luck i dont think i should do the work for you i would its sooo easy ;)
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Dorcia Originally Answered: Maths: Probability: Working out needed?
Number of ways of picking the 2 red bibs is 6C2. Number of ways of picking 2 bibs of any color is 20C2. Answer is 6C2 / 20C2 = (6 x 5 / 2) divided by (20 x 19 / 2) = 15 / 190 = 3 / 38 Probability = 3 / 38

Cassandra Cassandra
The amount of time in which the ball travels is .42 seconds. Just divide the meters/second by the distance. Then find the inverse of this. It should give you the right answer.
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Anitra Anitra
velocity = distance / time So then, time = distance / velocity Then plug in values: time = (23.77m) / (57.2 m/s) So time = .416 seconds, with there being only 3 significant figures due to fact that 3 sig-figs is the smallest sig-fig count of the two given values. Answer: .416 seconds
👍 83 | 👎 -10

Wilton Wilton
the formula for time is speed divided by distance. if you will substitute, it will become 57.2 m/s divided by 23.77 m. that's why, you will get the answer of 2 seconds.
👍 76 | 👎 -19

Seth Seth
Speed equals distance divided by time. Build an equation and plug in what you've got. You'll have to perform some algebra to get it to say time equals something.
👍 69 | 👎 -28

Seth Originally Answered: What kind of physics and maths is needed for architecture?
Depending on the region you are in (US, UK, Europe) there are different demands within the architecture coursework. This is because an architect has different legal responsibilities in different countries**. But in general most courses have a requirement for modules or lectures in at least the basics of engineering and material science. This means that having a grasp of the basics of advanced maths and some physics understanding helps. There may however be booster courses offered and a good lecturer should be able to commmunicate the ideas without maths. Read the following excellent books now and you will be suprised how much you understand: "Structures - or Why Things Don't Fall Down", by J.E. Gordon, published by Penguin, 1988. Cost: approx. 13 pounds. (ISBN 0140136282) "The New Science of Strong Materials - or Why You Don't Fall Through the Floor", by J.E. Gordon, published by Penguin, 1988. Cost: approx. 7 pounds. (ISBN 0140135979) Apart from this you will need to be reasonable able with numbers to cope as an architect in practice. You have to dimension, cost and budget your design sometimes on the spur of the moment. Then we do have calculators... but a good rule-of-thumb sense of scale, size and quantity will always be handy. All the best, Mike **For example in Spain the architect signs for the engineering aspects of a building and so has to be technically capable to calculate structure etc. In the UK the architect is not expected to be able to do such calculations because the engineer carries that liability.

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