El grupo 2° A, quieren elaborar una piñata idéntica a la que compraron en la dulcería; para que tenga las mismas dimensiones y f
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<u>Answer: </u>
The population of a city has decreased by 38% since it was last measured. If the current population is 27,900 .Previous population of city was 45000.
<u> Solution: </u>
Given that current population of city is 27900.
Also, population of a city has decreased by 38% since it was last measured.
Let assume that population of city when it was last measured = x
Decreased of 38% means x-38% of x . we can write this as,
So current population is
Equating above expression to the given value of current population, we get
x=45000
Hence previous population of city was 45000.
The given statement can be represented as :
- 2b³ - b
where, the number is assumed to be " b "
therefore, the correct choice is B. 2b³ - b