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October 21, 2014

October 21, 2014

Posted by **ashley** on Thursday, September 2, 2010 at 7:43am.

What is the cost of one sheet of paper (in dollars, do not include units, round to four decimal places)?

What is the mass (grams) of one sheet of paper ( do not include units, round to one decimal place)?

- chemistry -
**Dr Russ**, Thursday, September 2, 2010 at 9:12amNot sure I understand why you are instructed to not include units as this goes against good science teaching practice.

But anyway

if $3.30 /ream

then £3.30/500 sheets

which is $0.0066 sheet^-1 tp four dp.

1.000 oz is 0.02835 kg

0.500 oz is 0.01413 kg or 14.13 g

thus 1 kg of paper is

1 kg/0.01413 kg sheet^-1

=70 sheets to the nearest whole sheet

so 1 kg of paper costs

70 sheets x $0.0066 sheet^-1

=$0.46

Please check the maths and remove the units if you want to.

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