00:01
So in this problem, we're told that we have a mound that has g pounds of gravel in the quarry.
00:05
And throughout the day, 200 pounds are going to get added to it.
00:09
But then there's going to be two orders of 700 pounds that are sold.
00:13
And it's going to get taken away from our mound.
00:16
Now, at the end of the day, we're told that there's still 1 ,400 pounds of gravel.
00:20
What we want to figure out is what is g? what did we start with? well, the best way to do this is come up with equation.
00:26
So we started with g pounds.
00:29
Then we added on 200 pounds.
00:32
So we're going to add 200 to this.
00:35
Then there were the two orders of 700 pounds each...