A rectangle has a width of 5 cm and a length of 10 cm. If the width is increased by 3, how does the perimeter change?
2 answers:
Answer:
The perimeter changed by 6 cm.
Step-by-step explanation:
A rectangle has a width of 5 cm and a length of 10 cm.
The perimeter is = 2(length+width)
Perimeter =
=
= 30 cm
When the width is increased by 3, and lets assume that the length is same .
So, length is 10 cm and width is 8 cm.
Perimeter =
=
= 36 cm
Change in perimeter = cm
So, the perimeter changed by 6 cm.
You might be interested in
The correct answer is option A which is x = 3.
<h3>What is an expression?</h3>Expression in maths is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication and division.
The expression will be solved as:-
( 8x - 8 ) = 64
We can write 64 as
( 8x - 8 ) =
8x - 8 = 16
8x = 24
x = 3
Therefore the correct answer is option A which is x = 3.
To know more about Expression follow
#SPJ1