All categories

2 years ago

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)

You might be interested in

Evaluate the following expression.7/8 ÷ 1/8 + 22

diamong [38]

Answer:

Step-by-step explanation:

Copy dot flip

7/8 × 8/1 + 22

56/8 + 22

7 + 22

4 0

2 years ago

Read 2 more answers

The magnitude of the resultant vector shown is _____.

Flura [38]

Answer:

2√3

Step-by-step explanation:

You recognize this as a 30°-60°-90° triangle, so you know the hypotenuse (R) is twice the length of the shortest side (√3).

The magnitude of R is 2√3.

_____

In case you haven't memorized the ratios for a 30°-60°-90° triangle, you can use trigonometry and the fact that ...

Sin = Opposite/Hypotenuse

sin(30°) = √3/R

R = √3/sin(30°) = √3/(1/2) = 2√3

Of course, doing this on your calculator will give a numerical answer, which you may not want.

6 0

2 years ago

The CEO of a large corporation asks his Human Resource (HR) director to study absenteeism among its executive-level managers at

Fynjy0 [20]

Answer:

Following are the answer to this question:

Step-by-step explanation:

Given:

n = 30 is the sample size.

The mean $\bar X$ = 7.3 days.

The standard deviation = 6.2 days.

df = n-1

$= 30-1 \\ =29$

The importance level is $\alpha$ = 0.10

The table value is calculated with a function excel 2010:

$= tinv (\ probility, \ freedom \ level) \\= tinv (0.10,29) \\ =1.699127\\ = t_{al(2x-1)}= 1.699127$

The method for calculating the trust interval of 90 percent for the true population means is:

Formula:

$\bar X - t_{al 2,x-1} \frac{S}{\sqrt{n}} \leq \mu \leq \bar X+ t_{al 2,x-1} \frac{S}{\sqrt{n}}$

$=\bar X - t_{0.5, 29} \frac{6.2}{\sqrt{30}} \leq \mu \leq \bar X+ t_{0.5, 29} \frac{6.2}{\sqrt{30}}\\\\=7.3 -1.699127 \frac{6.2}{\sqrt{30}}\leq \mu \leq7.3 +1.699127 \frac{6.2}{\sqrt{30}}\\\\=7.3 -1.699127 (1.13196)\leq \mu \leq7.3 +1.699127 (1.13196) \\\\=5.37 \leq \mu \leq 9.22 \\$

It can rest assured that the true people needs that middle managers are unavailable from 5,37 to 9,23 during the years.

7 0

2 years ago

Every person has blood type O, A, B, or AB. A random group of people are blood-typed, and the results are shown in the table.

Evgesh-ka [11]

Answer:

12%

Step-by-step explanation:

$P=\frac{6}{22+20+6+2} =.12$

6 0

2 years ago

Suppose you have the following recursion formula a1 = 1, a2 = 2, and an = a(n - 1)+ a(n - 2)for integers n ≥ 3. How would you de

julia-pushkina [17]

A3=3
a4=5
a5=8

This sequence has properties similar to those of the Fibonacci sequence.

8 0

2 years ago

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?​

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?