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vfiekz [6]
2 years ago
6

How many pieces of wire 3.6cm long can be cut from a coil of 1m long?What is the length of the piece left over?​

Mathematics
2 answers:
sp2606 [1]2 years ago
8 0

Answer:

We can get 27 pieces of wire 3.6 cm long and have a piece 7/9 cm left over

Step-by-step explanation:

Find the "unit length" by dividing 1 m by 3.6 cm:

  1 m

-----------

3.6 cm

Recall that 1 m = 100 cm.  Multiply the following by the conversion factor 100 cm / 1 m:

  1 m            100 cm

----------- * ----------------- = 27,7777777...

3.6 cm            1 m

We can get 27 pieces of wire 3.6 cm long and have a piece 7/9 cm left over (verify this by dividing 7 by 9 on a calculator).

dybincka [34]2 years ago
4 0

Answer:

<h2><u>Solution</u><u> </u><u>:</u><u>-</u></h2>

Pieces can be cut = 1/3.6

Pieces can be cut = 0.27 m

100 cm = 1 m

0.27 m = 27 cm

Therefore,

The length remaining of wire is 27 cm (approximately)

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aleksandrvk [35]

Answer:

Adam is 8.

Step-by-step explanation:

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6 0
2 years ago
Two students walk in the same direction along a straight path, at a constant speed - one at .90 m/s and the other at 1.90 m/s.a.
anyanavicka [17]

Answer:

a)The second student arrive 7 minutes and 36 seconds sooner

b)They have to walk 598,51 m

Step-by-step explanation:

Speed= Distance/Time

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Time = 780 m/0.90 m/s=866,66 seconds

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In minutes

Difference= 456,14 seconds /60=7 minutes 36 seconds

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Time¹= Time² + 5.50 min

5.50 min =350 seconds

Time²  =Speed¹ x Time¹ /Speed²

Time²  =Speed¹ x (Time² + 350 seconds  ) /Speed²

Time²  =0.9 x (Time² + 350 seconds  ) /1.9

Time²  =0,4737 x (Time² + 350 seconds  )

Time²  =0,4737 Time² + 165,79 seconds

Time²  - 0,4737 Time² = 165,79 seconds

0,5263 Time² = 165,79 seconds

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5 0
3 years ago
How to construct a triangle with side lengths 10 cm and 14 cm and an angle between them of 60 degrees.
Yuliya22 [10]

Answer:

We draw line AB which is perpendicular to the 14 cm side

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Triangle CAB is a 30 60 90 triangle so line CB is half the hypotenuse or 5 cm

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Line AD^2 = AB^2 + BD^2

Line AD^2 = 75 + 81

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Line AD = 12.4899959968

Line AB = Sqr root (75) = 8.6602540378

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Angle D = 43.898 degrees

Angle A = 180 - 60 - 43.898 = 76.102 degrees

*****************************************************************

Actually this could have been done a little easier by using the Law of Cosines and then the Law of Sines, but I just thought I'd show another way to solve this.

Step-by-step explanation:

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3 years ago
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