Ms.Lopez has created a floor plan of a dollhouse. The area of the entire dollhouse is 576 square inches
1 answer:
Answer:
(a)Area of the bedroom=96 square inches
(b)Area of the living room =144 square inches
(c)Area of the dollhouse that is not of the bedroom or living room =336 square inches.
Step-by-step explanation:
The area of the bedroom is 1/6 the area of the entire dollhouse
The area of the living room is 3/2 times the area of the bedroom.
The area of the entire dollhouse is 576 square inches
Let the area of bedroom=b
Let the area of living room=l
(a) The area of the bedroom is 1/6 the area of the entire dollhouse
square inches
(b)The area, in square inches, of the living room
The area of the living room is 3/2 times the area of the bedroom
l= square inches
(c)The total area of the house =576 square inches
Area of the bedroom=96 square inches
Area of the living room =144 square inches
Area of the dollhouse that is not of the bedroom or living room
=576-(96+144)=576-240=336 square inches.
The area of the living room is 3/2 times the area of the bedroom
This is gotten by subtracting the area of the bedroom and living room from the total area of the house.
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Answer:
The IQ score separating the bottom 25% from the top 75%. is 87.3
Step-by-step explanation:
Given that adults have IQ scores that are normally distributed with a mean of 98.8 and a standard deviation 17.1.
To find the first quartile, we calculate X such that P(X<z)=0.25.
From the normal distribution table the The z-value that corresponds to an area of 0.25 is z=-0.675
We use the formula:
We substitute to get:
This implies that:
Solve for x to get:
X=87.2575