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0.5% means 'one half of one percent.

Hence

0.5/100

Multiply ( top and bottom) by '10' to remove the decimal point.

5/1000

Of 40

5/1000 X 40/1

Multiply fractions.

200/1000 = Cancel down by '100'

2/10 = 1/5 = 0.2 The answer !!!!!

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lenpollock

Lvl 17
1mo ago

What else can I help you with?