Ratios and rates Ratio Rate Scale Scale Drawing Fraction Equivalent Solve Problem Receive Distance...
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Ratios and rates Ratio Rate Scale Scale Drawing Fraction Equivalent Solve Problem Receive Distance Floor plan This topic has 11 key words:
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Transcript of Ratios and rates Ratio Rate Scale Scale Drawing Fraction Equivalent Solve Problem Receive Distance...
Ratios and rates
Ratio
Rate
Scale
Scale Drawing
Fraction
Equivalent
Solve
Problem
Receive
Distance
Floor plan
This topic has 11 key words:
Ratio
Definition: A ratio compares numbers in a set order.
Example: The ratio of men to women in the green box is 3:1.
The ratio of women to
men in the green box
is 1:3.
Rate
Definition: Rates compare things that are measured differently.
Example: A woman walks 5km (distance) in 1 hour (time).
This is written 5km / h.
Scale
Definition: Scale is a ratio of the size of something compared to the size of something else.
Example: This toy car is 4cm long. The real car is 400cm long. The scale is 4:400.
This is the same as
1:100.
Scale DrawingDefinition: A drawing where all parts are a certain amount smaller than the real thing.
Example: In this drawing of a horse, all parts of the drawing are 10 times smaller than the real horse.
Fraction
Definition: A part of a whole.
Example: The whole pizza below has 4 slices.
Someone has taken 1 slice.
Three slices are left on the plate.
The fraction of the whole pizza
that is on the plate is ¾.
Equivalent
Definition: The same as something else.
Example: The ratio of circle A that is shaded is 1:2. The ratio of circle B that is shaded is 2:4.
1:2 is equivalent to 2:4.
Circle A Circle B
Solve
Definition: To find out something new.
Example: Solve the equation to find y.
2 + y = 3.
-2 -2
y = 1
We solved this equation and found that y = 1.
Problem
Definition: Something that we need to find an answer for.
Example: 2 cans of coke cost $2. How much does one can of coke cost?
This is a problem. Can you find the answer?
$2 ?
Receive
Definition: To get something.
Example: Bob will receive $100 for the work he is doing in the garden.
Distance
Definition: How far it is from one point to another.
Example: The distance
from Sydney to Brisbane
is about 1000km.
Floor Plan
Definition: A drawing of a building of the floor of a building which is done to scale.
Example: This floor plan shows a house with three bedrooms.
