Answer:
Dimensions = 8 CM and 12 CM
length = 12 CM
width = 8 cm
perimeter = 2 ( length + width)
= 2( 12 + 8)
= 2 ( 20)
= 40 CM
ratio = 12/40
= 6/20
= 3/10
<h2>= 3 : 10 </h2>
Answer:
x=6
Step-by-step explanation:
(×+54)+5×=90
6×+54=90
90-54
6×=36
×=6
6 is what you're dividing by so it goes on top as the numerator and x + y is the denominator: 
Answer: 54 feet or 648 inches.
Step-by-step explanation:
1. You know that 1 inch on the doll house corresponds to 1/2 foot for life-sized objects. Therefore, you can calculate the width of the full-sized house that it's modeled after, as following:

2. Then, the width in feet is: 54 feet.
3. And the width in inches is:
(Keeping on mind that 1 feet=12 inches)

The first step is to set one equation equal to x or equal to y.
Ex. y = ..... or x = .....
The next step is to substitute that equation into the second equation in place of the x (or y), whichever you set it equal to.
Ex. x + y = 3
2x + y = -1
y = -x + 3 2x + (-x + 3) = -1
x + 3 = -1
x = -4
y = -(-4) + 3 y = 7 (-4,7)