Deanna L. answered 09/18/15
Tutor
5.0
(222)
Electrical engineering major and music lover with MIT degree
Let's say that x is the profit in January and y is the profit for February. Then let's describe the total profit over the two months:
x+y=125000
We know that profit was 9% lower in February so we can describe in one of two ways:
y/x=.09 or
y=.91x
The second is easier to substitute into the first equation.
So now we have x+.91x=125000
1.91x=125000
x=65445.03 which makes y 59554.97.
Some quick checking here: y should be 9% lower than x. So 59554.97/65445.03=.91. Check!
Hope that helps!
Cat H.
05/01/16