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3 years ago

How to justify a/b x b/c = a/c?

2 answers:

8 0

A/b times b/c is = ab/bc
which can be written as a/c times b/b
anything over itself is 1 so b/b is one
a/b times b/c = a/c

ale4655 [162]3 years ago

6 0

Well a/b * b/c = ab/bc, and since b/b= 1 you get 1a/c or just a/c :)

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The population of a town increased from 3500 in 2005 to 5600 in 2009. Find the absolute and relative (percent) increase.

Ket [755]

Answer:

Absolute increase in population will be 2100

And percentage increase will be 60 %

Step-by-step explanation:

We have given population in 2005 is 3500

And population in 2009 is 5600

So absolute increase in population = 5600-3500 = 2100

We have to find the percentage increase in population

So relative percentage increase in population will be $\frac{2100}{3500}\times 100=60$ %

So population will increase by 60 %

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3 years ago

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3 years ago

Perimeter of a square that measures 5.35 cm on one side

Kitty [74]

Answer:

Perimeter of a square that measure 5.35 on one side is, 21.4 cm

Step-by-step explanation:

Perimeter of a square is the total length of the boundary of a square.

It is given by:

$P = 4a$ ......[1] where

P represents the perimeter of square,

a represents the side of square.

Given: a = 5.35 cm

Substitute this value in [1] we get;

P = 4(5.35) = 21.4 cm

therefore, the perimeter of a square is, 21.4 cm

6 0

3 years ago

Please help needed and thank you

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3 years ago

Which numbers have the same absolute value? Choose all that apply. ASAP

Vitek1552 [10]

I'm not sure which numbers you are referring to, but 3 has the same absolute value as -3, and 7 has the same absolute value as -7, just for an example.

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2 years ago