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Answer:
see below
Step-by-step explanation:
No simplification is possible as there aren't any factors that can be combined or cancelled. The exponents can be made positive by moving the variable to the other side of the fraction bar.
The applicable rule of exponents is ...
a^-b = 1/a^b
Answer:
26
Step-by-step explanation:
Answer:
Shopkeepers gain just by weighing is 22.22%
Step-by-step explanation:
Explanation:
Assume that the shopkeeper bought x units of goods i.e. actual weight of goods.
As the balance used to buy goods weighs 10% more, he actually bought x×110100=1.1x weight units i.e. although the shopkeeper paid for x units, he actually bought 1.1x units by weight.
Now he has 1.1x units of goods, but for selling he uses another balance, which actually measures 10% less i.e. 1−0.10=0.9 units for each unit weight of goods sold.
So while selling 1.1x becomes 1.1x0.90=1.2222... units.
Hence, shopkeepers gain just by weighing is 22.22%
