The area of a dollhouse is 1248 square inches the width of the room is 8 inches how long is the room

Answer : The length of the room is, 156 inches

Step-by-step explanation :

Given:

Area = 1248 inches²

Width = 8 inches

As we know that:

Area of rectangle = Length × Width

Now put all the values in the above formula, we get the length of the room.

Area of rectangle = Length × Width

1248 inches² = Length × 8 inches

Length = (1248 inches²) ÷ 8 inches

Length = 156 inches

Therefore, the length of the room is, 156 inches

step-by-step explanation:

answer: the price of one pound cabbage = $ 0.8

the point (10,8) represents that the cost of 10 pounds cabbage is $ 8

step-by-step explanation:

since, here is a proportional relation between the number of pounds of cabbage (x) and the price in dollars (y).

therefore, we can write,

⇒ y = k x

where k is the constant of proportionality.

now, point (5,4) is in the line.

thus, it will satisfies the above equation of line.

⇒ 4 = 5 k

⇒ k = 0.8

thus, the equation of the line is,

y = 0.8 x

a) for x = 1,

y = 0.8

therefore, the cost of one pound of cabbage is 0.8 dollars.

b) in the below graph (10,8) represents that the cost of 10 pounds of cabbage is 8 dollars.