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ashley_johnson102006
A computer system marked $800 is sold at a discount of 16%? and for what price did it sell?
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You dont need a calculator for this,
First part is working out the pecentage:
To do this convert the $800 to 100%=
800/100 = 8
Now that we know what 1% is equal to, we need to multiply it by 16 so that we can get the figure for 16%:
16x8= 128
So, 16% of $800 is $128
Now for the second part, we need to take this off the $800 to find what price it was sold for:
$800
 $128
= $672
When doing maths, its marked similarly to Chemistry, you will get something like 3 or more marks for the working out part and only one mark for the correct answer. 
Boxa786 said:You dont need a calculator for this,
First part is working out the pecentage:
To do this convert the $800 to 100%=
800/100 = 8
Now that we know what 1% is equal to, we need to multiply it by 16 so that we can get the figure for 16%:
16x8= 128
So, 16% of $800 is $128
Now for the second part, we need to take this off the $800 to find what price it was sold for:
$800
 $128
= $672
When doing maths, its marked similarly to Chemistry, you will get something like 3 or more marks for the working out part and only one mark for the correct answer.
Sounds a good way in dealing with such kind of exercises. Never used this way before. You are quite smark.
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