If x represents width of rectangle & length is 4 less than 3 times the width? What is the width and how would you translate this into numbers?
*area =?
*where length is 4 less than 3 times the width
*Length = x -3
*Width = x
*Area = (4x-3) (x) = 4x ^2-3x
Is this the way you do this problem?
4 answers
3x - 4
http://www.jiskha.com/display.cgi?id=1435552268
length is 4 less than 3 times the width
less than means you're going to be subtracting.
6 is 2 less than 8
50 is 40 less than 90
So, expect to see "-4" because the length is 4 less than something.
Less than what? 3 times the width. The "times" indicates multiplication.
3 times 4 is 12
9 times 6 is 54
so, if the width is x, then 3 times the width is 3x.
The length is 4 less than that, or
3x-4
It's surprising that these ideas seem so hard for you to grasp. This is the kind of stuff we all do every day.
less than means you're going to be subtracting.
6 is 2 less than 8
50 is 40 less than 90
So, expect to see "-4" because the length is 4 less than something.
Less than what? 3 times the width. The "times" indicates multiplication.
3 times 4 is 12
9 times 6 is 54
so, if the width is x, then 3 times the width is 3x.
The length is 4 less than that, or
3x-4
It's surprising that these ideas seem so hard for you to grasp. This is the kind of stuff we all do every day.
3