Aussie Maths & Science Teachers: Save your time with SmarterEd
This table summarises the time Tutty spent training her parrot over five days.
What was the average (mean) time for training the parrot each day?
`text(30 minutes)` | `text(56 minutes)` | `text(66 minutes)` | `text(280 minutes)` |
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`text(56 minutes)`
`text(Average)` | `= (25 + 55 + 60 + 94 + 46)/5` |
`= 280/5` | |
`= 56\ text(minutes)` |
Between 2007 and 2010, the number of people with type II diabetes in America increased by about
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`text(0.5 million people.)` |
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`text(1 million people.)` |
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`text(1.5 million people.)` |
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`text(2 million people.)` |
`text(2 million people.)`
`33.21 – 31.16 = 2.05`
`:.\ text(The number increased by about 2 million people.)`
10 of the tallest mountains in the United States are listed in the table below:
How much taller than Utah's tallest mountain is Colorado's tallest mountain?
`225\ text(metres)` | `227\ text(metres)` | `273\ text(metres)` | `330\ text(metres)` |
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`273\ text(metres)`
`text(Mount Massive – Kings Peak)`
`= 4398 – 4125`
`= 273\ text(metres)`