Formulas
Formula for area of a rectangle
A=lw
Define salary
a fixed amount of money you earn for an entire year
What is another name for Numerical data?
Quantitative data
what is 0100 in analogue time?
1am
What is an equivalent ratio?
ratios that are equal
Formula for area of a triangle
A=1/2 bh
define wage
a person gets a set amount of money per hour/week/fortnight and can also earn overtime
When would you use a group column graph?
when wanting to display the data of two or more categories
what is 8:45pm in 24 hr time?
2045
A puff pastry recipe requires 225g flour, 30g lard and 0.21kg butter. What is the ratio of butter to flour?
14:15
formula for Simple Interest
I=Pin
What is superannuation?
money paid by your employer to go towards your superannuation
What does MODE mean?
Most Common piece of data
what does daylight savings time mean?
clocks are moved forwards to allow for more daylight in the evening
How do you convert a decimal to a percentage?
multiply the decimal by 100
Formula to calculate the distance
d=s x t
what is the medicare levy?
taxpayers pay a medicare levy through their weekly earnings. This goes towards our free healthcare services
What are the steps in finding the MEDIAN for the set data?
1. place the data in order from smallest value to largest value
2. find the MIDDLE number
what does km/h means
kilometres per hour
calculate 45% as a fraction
9/20
finish the say:
from large to small we ________________
from small to large we __________________
from large to small we multiply them all
from small to large we divide and take charge
What does PAYG stand for?
Pay As You Go
What is an outlier?
an extreme value in a set of data
calculate the average speed of Sally who walks around her 2.5 km block in 1050 seconds into km/h
8.57 km/h
What does all the letters mean in this formula? I=Pin
I = Simple Interest
P = principal
i = interest rate
n = number of years