3 years ago

The value of a bike depreciates by 55% per year. Work out the current value of a bike bought 2 years ago for £1300.

1 answer:

7 0

Year 1: 1,300 * 55% = 715 depreciation
1,300 - 715 = 585 book value

Year 2: 585 * 55% = 321.75 depreciation
585 - 321.75 = 263.25 book value

Year 3: 263.25 * 55% = 144.79 depreciation
263.25 - 144.79 = 118.46 book value

If the bike was bought 2 years ago, then its current value is $263.25.

Currently, it is the beginning of Year 3 but depreciation is computed at the end of the year.

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A table contains the ordered pairs (3, 42.25) and (5, 50.75). If the relationship in the table is linear, explain how to find th

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Answer:

The linear relationship ( the linear equation ):

y = m x + b ( the slope-intercept form )

m = ( 50.75 - 42.25 ) / ( 5 - 3 ) = 8.50 / 2 = 4.25 ( the slope )

42.25 = 4.25 * 3 + b

b = 42.25 - 12.75

b = 29.50

y = 4.25 * x + 29.50

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