Step-by-step explanation:
5 - n/2 = 12
10/2 - n/2 = 12
n = (12 × (-2)) + 10
n = (-24) + 10
n = <u>-1</u><u>4</u>
Let's prove it :
Conclusion :
5 - n/2 = 12
5 - (-14/2) = 12
and
n = -14
Here, let the age of student be x and teacher be 4x after 28 years, the teacher is double the age of student. So the age of teacher will be 4x+28 and student will be 2(x+28)
So,
4x+28=2(x+28)
4x+28=2x+56
4x-2x=56-28
2x=28
x=14
Therefore the age of the teacher in present will be
=4x+28
=4*14+28
=84
And age of student will be:
=x+28
=14+28
=42
Hope this helps
A) The estimated total expense is
.. $600 +300 +200 +100 +200 = $1400
b) The estimated remaining to be saved is
.. $1400 -800 = $600
C would the the correct answer since it is the only one that makes sense
