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Appropriate Units and Scales Videos 17 videos
Mathematical Reasoning Drill 4 Problem 1. Approximately how many gallons of paint is needed if eight people paint the wall together for an hour?
Mathematical Reasoning Drill 4, Problem 2. How many people failed to return the survey?
Mathematical Reasoning Drill 4, Problem 3. For approximately how long did the pie remain higher than the three-story building?
CAHSEE Math 2.1 Measurement and Geometry 175 Views
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Description:
Measurement and Geometry: Drill Set 2, Problem 1. How far is this distance in real life?
Transcript
- 00:03
Here's your shmoopy question du jour...
- 00:05
Leslie can make free throws all day from 1.5 cm away.
- 00:11
Unfortunately for her, this diagram of a basketball court is not life size.
- 00:16
A centimeter in the diagram is equivalent to 120 inches.
- 00:21
If the distance from the free throw line to the front of the rim of the basket is
Full Transcript
- 00:25
1.5 cm in the diagram, how far is this distance in real life?
- 00:31
And here are the potential answers...
- 00:36
OK, this question takes the standard conversion question one step further --
- 00:41
we have to convert drawing size... into two points.
- 00:44
Under pressure. Since the answers are all in feet, the only
- 00:48
thing we care about is feet...
- 00:50
...so since the question gives us that 1 centimeter is 120 INCHES...
- 00:54
...we have to just rethink it a bit so that 1 centimeter equals 10 feet.
- 00:59
Because there are 12 inches in a foot... or 120 inches in ten of 'em.
- 01:05
So to get the free throw distance we take 1.5 and multiply it by 10 feet...
- 01:10
which gets us 15 feet.
- 01:12
And the answer is C.
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