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3 years ago

The formula for the perimeter of a rectangle is p=2(1+w) solve for w.

Mathematics

1 answer:

Dvinal [7]3 years ago

3 0

P=2*(l+w)
p=2l+2w
2w=p - 2l
w= (p-2l)/2

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A train leaves Zurich at 2240 and arrives in Paris at 0732. work out the time taken

Alisiya [41]

The time taken to reach train from Zurich to Paris is 8 hours 52 minutes.

Step-by-step explanation:

The given is,

Train leaves Zurich at 22:40

Train arrives Paris at 07:32

Step:1

Time taken to reach from zurich to paris,

= Train leaves at Zurich - Train arrives at Paris

= 22:40 - 07:32

= 8.52 hours

Step:2

Time taken by train to reach from zurich to paris in minutes,

= 8.52 hours

= 4831 minutes 12 secs

Result:

The time taken to reach train from Zurich to Paris is 8 hours 52 minutes, if a train leaves Zurich at 2240 and arrives in Paris at 0732.

4 0

3 years ago

2. Given that the radius of the Earth is 6340 Km. calculate the Surface Acer of earth <br>

serious [3.7K]

Answer:

Step-by-step explanation:

The surface area of a sphere (which the earth is considered to be) = 4 pi r^2

pi = 3.14

r = 6340

Area = 4 * 3.14 * 6340 * 6340 = 504856736 square km.

You should either round this to 505,000,000 or express a value in scientific notation.

5.05 * 10^8

6 0

3 years ago

<img src="https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B9%7D" id="TexFormula1" title="\frac{1}{9}" alt="\frac{1}{9}" align="absmiddle

Jobisdone [24]

$\dfrac{1}{9} - \dfrac{5}{6}$

Set up

$\dfrac{2}{18} - \dfrac{15}{18}$

Get all fractions to a common denominator which will allow you to subtract them

$\dfrac{2 - 15}{18}$

Subtract numerators

$\boxed{- \dfrac{13}{18}}$

Simplify

4 0

3 years ago

In 2010, the number of houses built in Town A was 25 percent greater than the number of houses built in Town B. If 70 houses wer

Stella [2.4K]

Answer:

The number of houses built in Town B is 56.

Step-by-step explanation:

We are given that in 2010, the number of houses built in Town A was 25 percent greater than the number of houses built in Town B.

Also, 70 houses were built in Town A during 210.

Let the number of houses built in Town B be 'x'.

So, according to the question;

Number of houses built in Town A = Number of houses built in Town B + 25% of the houses built in Town B

$70 = x + (25\% \times x)$

$70 = x(1+0.25)$

$x=\frac{70}{1.25}$

x = 56

Hence, the number of houses built in Town B is 56.

8 0

3 years ago

2x+y=5<br> -x+2y=4 <br><br> How do you solve this

d1i1m1o1n [39]

The answer to your problem is
x=5/2
y=5

x=-4
y=2

7 0

4 years ago