--------------------------------------------------------
Find area of the border :
--------------------------------------------------------
Area of the room = 22 x 25 = 550 ft²
Area of the rug = 238 ft²
Area of the border = 550 - 238 = 312 ft²
--------------------------------------------------------
Define y:
--------------------------------------------------------
Let the width be y.
--------------------------------------------------------
Find area of the border in term of y :
--------------------------------------------------------
The area of the border = 22y x 2 + 25y x 2 - 4y² = 94y - 4y²
*We need to take away 4y² because the 4 corners will be overlap twice if we don't.
--------------------------------------------------------
Solve y :
--------------------------------------------------------
94y - 4y² = 312
4y² - 94y + 312 = 0
2y² - 47y + 156 = 0
<span>(y - 4)(2y - 39) = 0
</span>y = 4 or y = 19.5
--------------------------------------------------------
Answer: The border can be 4 ft or 19.5 ft
--------------------------------------------------------
Answer:
144 tiles
Step-by-step explanation:
if the room is 144 feet squared and one tile is one square foot
Answer:
Step-by-step explanation:
Given that When n is divided by 21, the remainder is an odd number.
i.e. 
where m is an integer and k a positive integer <21
When n is divided by 28, the remainder is 3
, where c is a positive integer
This can be written as
Since n is giving odd remainder when divided by 21,
we get r =3 as n is a multiple of 7 +3
Answer:
Step-by-step explanation:
a) X=4
b) Y=7
I wont tell you why.
Answer:
$45
Step-by-step explanation:
1.54(x) = 69.3
Divide both sides by 1.54
x = 45
