A balloon has a circumference of 16 cm. use the circumvents to approximate the surface area of the balloon to the nearest Square
2 answers:
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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 .
Answer:
- 4x + 4
Step-by-step explanation:
(x-2) × (x-2)
(x × x) + (x × -2) + (-2 × x) + (-2 × -2)
() + (-2x) + (-2x) + (4)
- 2x - 2x + 4
- 4x + 4