Badly expressed! Do you mean "what is the area of a rectangle with a length that is 3 more than twice its width?" ? If you have a width, then presumably you have a length, in which case you presumably have a rectangle. But what do we want to know about this rectangle? You haven't said. Its area? Its perimeter? Its color? Its shoe size?
Call the width x and the length 3x.Write an equation for perimeter: 3x+3x+x+x=48Simplify: 8x=48Divide: x=6Plug in 6 for x, therefore the width of the rectange is 6.
l = 2*w - 3
(2x)+3
Width = 9 inches Length = 30 inches
2x+3 where x is the unknown number
3 and 7
The dimensions of the rectangle are 21 units by 9 units
length + width = ½ perimeter ie 24', so length = 24 - width length = 2 x width + 3, so 24 - width = 2 x width + 3 ie 21 = 3 x width so width = 7 and length = 17
The width is half the length: The perimeter is twice the length plus twice the width. If the perimeter is 3 times the length, twice the width must be the length.
4
Let its width be x:- So: 2*(2x+3+x) = 84 4x+6+2x = 84 => 6x = 84-6 => 6x = 78 => x = 13 Therefore: width = 13 feet
L=lengthw=width2w+3=L2L+2w=482(2w+3)+2w=486w+6=486w=42w=72(7)+3=lL=17
Each of the short sides is 7 feet long and each of the long sides is 7x2 (14) + 3 which equals 17 feet long. So the width is 7 feet.
Suppose the width=x so the length will be= (2x+3) Now perimeter of rectangle = 2(length+width) so, 186=2(x+2x+3) or, 3x+3=93 or, 3x=90 so, x=30 so the width of the rectangle is 30meters
if the width is 3.5 then the length is 10 10 = 3 +2(3.5) 10 x 3.5 = 35
Oh, dude, you're hitting me with some math now? Okay, okay, I got this. So, 3 more than twice a number is just adding 3 to double the number. It's like saying, "Hey, let's double the fun and then throw in an extra 3 for good measure." Math can be fun, right?
Call the width x and the length 3x.Write an equation for perimeter: 3x+3x+x+x=48Simplify: 8x=48Divide: x=6Plug in 6 for x, therefore the width of the rectange is 6.