Mrs. Jones decided to buy some pencils for her class. She bought 2 packages of pencils, and each package contained 42 pencils. T
1 answer:
You might be interested in
Answer:
Scale : 1 mm =
Or
Scale : 3 mm = 1 m
Step-by-step explanation:
Let the scale used be 1 mm = 'x' m
Given:
Actual width of kitchen is 12 m.
Length used by Kate in drawing is 36 mm.
So, 36 mm in drawing is equivalent to 12 m in actual.
Therefore, 1 mm in drawing is equivalent to 'x' m in actual.
Taking proportions and solving by cross multiplication, we get
Therefore, 1 mm in drawing is equal to in actual.
Scale : 1 mm =
Or
Scale : 3 mm = 1 m
Answer:
The pooled estimate is given by the following formula:
And replacing we got:
Step-by-step explanation:
We have the following info given:
n1 = 100,
n2 = 100,
x1 = 42,
x2 = 45
The pooled estimate is given by the following formula:
And replacing we got: