Last year Alex earned a monthly salary of $250,and Ben earned monthly salary of $180. This year, each of them received a pay inc
1 answer:
Answer:
$87.5 more did Alex earn in one month than Ben
Step-by-step explanation:
As given
Last year Alex earned a monthly salary of $250,and Ben earned monthly salary of $180.
This year, each of them received a pay increase of 25% .
25% is written in the decimal form.
= 0.25
Increase in the Alex salary this year = 0.25 × Last year salary
= 0.25 × 250
= $62.5
Total amount of Alex salary this year for one month = Last year salary + Increase in the Alex salary this year
= 250 + 62.5
= $ 312.5
Thus the salary earn by the Alex this year for a month be $312.5.
Increase in the Ben salary this year = 0.25 × Last year salary
= 0.25 × 180
= $45
Total amount of Ben salary this year for one month = Last year salary + Increase in the Ben salary this year
= 180 + 45
= $ 225
Thus the salary earn by the Alex this year for a month be $ 225 .
Amount Alex earn in one month than Ben = Total amount of Alex salary this year for one month - Total amount of Ben salary this year for one month
Putting the values in the above
= $ 312.5 - $225
= $ 87.5
Therefore $87.5 more did Alex earn in one month than Ben .
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Answer:
The number of roots for equation is 4 .
Step-by-step explanation:
Here, the given function polynomial is :
The Fundamental Theorem of Algebra says that a polynomial of degree n will have exactly n roots (counting multiplicity).
Now here, the degree if the polynomial is 4 (highest power of variable x).
So, according to the Fundamental Theorem, the given polynomial can have AT MOST 4 roots, counting Multiplicity.
Hence, the number of roots for equation is 4 .