Answer:
* 20 / 13
Step-by-step explanation:
decrease = / by
65/100 = 13 / 20
= * 20 / 13
(i think)
hope this helps!
35%
A decrease of 65% would be the same as multiplying the value by 35%.
100% - 65% = 35%
Let's use an example.
You have $150 dollars in stock and it decreases by 65%
150 - (.65*150) =
150 - 97.5 = $52.50
Now let's just multiply $150 by .35 (which is 35%)
150 * .35 = $52.50
It's the same!
f=ab/a+b
Let's solve for f.
1/f=1/a+1/b
if b²=256
then b=16
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