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mrs_skeptik [129]
2 years ago
7

A steam engine for pulling trains has wheels of diameter 1.5 metres.

Mathematics
1 answer:
Dima020 [189]2 years ago
3 0

Answer:

The wheel completed a total of 212 turns.

Step-by-step explanation:

A wheel has a circular form, therefore its length is given by the following formula:

length = 2*\pi*radius

Where radius is half the diameter. Applying the data from the problem to calculate the length of the wheel gives us:

length = 2*\pi*(\frac{1.5}{2})\\length = 1.5*\pi = 4.7124

Since the engine traveled a distance of 1000 metres and each turn of the wheel has 4.7124 metres, in order to calculate the number of turns the wheel made in that course we need to divide both numbers as shown below:

turns = \frac{1000}{4.7124} = 212.21

The wheel completed a total of 212 turns.

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2z z =-5 divided by -2
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Answer:

-3x-y=5

y-2z=7

x-4y+z=-9

Step-by-step explanation:

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2 years ago
Shellie spent $10.56 on oranges that cost $0.88 per orange. How many oranges did she purchase?
vlada-n [284]
You have to do 10.56 plus 88 and you will have your answer
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3 years ago
the volume of a cylinder is 1,356.48^ feet. If the diameter is 12 feet, calculate the height of the cylinder.
Olin [163]

Answer:

11.99 ft

Step-by-step explanation:

The formula for the volume of a cyl. of radius r and height h is V = πr²h.

Solving this immediately for h yields:

         V

h = ----------

         πr²

Inserting the known quantities results in:

         V           1356.48 ft³

h = ---------- = ----------------------      Note that r = (1/2)d, so r = (1/2)(12 ft) = 6 ft

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   =   11.994 ft

The height of the cyl. is 11.99 ft (to the nearest hundredth foot)

4 0
3 years ago
A clothes shop has some special offers. T-shirts are buy one get one free and jumpers are 3 for 2. The normal price of a T-shirt
MAXImum [283]

Answer:

£17.20

Step-by-step explanation:

A clothes shop has some special offers. ?

The normal price of a T-shirt is £7.40 The normal price of a jumper is £9.80.

T-shirts are buy one get one free Jumpers are 3 for 2.

How much does it cost to get 5 jumpers and 2 T-shirts using this offer as appropriate?

The cost of 2 T-shirts since it is a buy 1 get 1 free => £7.40

The cost of 5 jumpers =

You buy 3 Jumpers ,you get 2 jumpers free => £9.80

The total cost = £7.40 + £9.80

= £17.20

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2 years ago
5 kilometers 745 decimeters = how many<br> decimeters
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