The amount of last year sales is $ 528400
<em><u>Solution:</u></em>
Let "x" be the amount of last year sales
Given that,
The total sales at Office Products this year are $713,340, which is 35% more than last year’s sales
Therefore,
This year sales = 35 % more than last year sales
This year sales = 35 % of last year sales + last year sales
713340 = 35 % of x + x
Thus amount of last year sales is $ 528400
Answer:
Step-by-step explanation:
Given that:
This implies that the level curves of a function(f) of two variables relates with the curves with equation f(x,y) = c
here c is the constant.
By cross multiply
From (2); let assume that the values of c > 0 likewise c < 100, then the interval can be expressed as 0 < c <100.
Now,
This is the equation for the family of the eclipses centred at (0,0) is :
Therefore; the level of the curves are all the eclipses with the major axis:
and a minor axis
which satisfies the values for which 0< c < 100.
The sketch of the level curves can be see in the attached image below.
