The scale from the drawing means ...
... drawing size : life size = 3 : 1000
This can be turned around to get ...
... life size : drawing size = 1000 : 3
I find this form more convenient to use in a proportion:
... actual length / drawing length = 1000 / 3
Multiplying by "drawing length", we get ...
... actual length = (drawing length)·(1000/3)
This will be true for both drawing lengths.
_____
... Pool length = (15 cm)·1000/3 = 5000 cm = 50 m
... Pool width = (7.5 cm)·(1000/3) = 2500 cm = 25 m
The area is the product of these dimensions:
... pool area = (50 m)·(25 m) = 1250 m²
Answer:
1/2
Step-by-step explanation:
=[-1/4 + 1/6] ÷ [1/3 - 1/2]
=[-3/12 + 2/12] ÷ [2/6 - 3/6]
=[-1/12] ÷ [-1/6]
=[-1/12] x [-6/1]
= 1/2
Answer:
b
Step-by-step explanation:
Answer:
The one that does not belong has a different number of dimensions.
Step-by-step explanation:
<u>Given list consists of:</u>
- a line segment (AB)
- a plane (CDE)
- a line (FG)
- a ray (HI)
Three of them have one dimension but the plane has two dimensions,
therefore<u> </u>the plane in the list does not belong with the other three.
<u>So correct answer choice is:</u>
- The one that does not belong has a different number of dimensions.