00:01
In this problem, it is said that sales have grown by 30 % this year to $200 million.
00:07
We need to determine what the sales were before the growth.
00:11
Now, let us assume that x is the amount of sales in dollars before the growth.
00:18
Then this has grown by 30 % to $200 million.
00:22
So if x grows by 30%, then that means with x, we add 30 % of x.
00:30
Then what we have paying is 200 million.
00:33
So that's 200 times 10 to the power of 6, since 1 million is 10 to the power of 6.
00:39
So we just need to solve this equation for x.
00:42
So over here we have x plus 30 % of x.
00:46
Now 30 % of x is 30 by 100 times x.
00:51
So this is equal to 200 times 10 to the power of 6.
00:56
So we end up with x plus 30 by 100...