The length of a rectangle is 5 inches less than 3 times the width. the perimeter of the rectangle is 14 inches. find the length and width of the rectangle.
i did this: length 3x-5; width 3x then i did guess and check and came up with x=2 solving the problem with a perimeter of 14. but, the answer is supposed to be length 4inches, width 3inches.
explain what i did wrong. i know the answer but not how to get it.

160

step-by-step explanation:

idk

i hope i

so firstly, we need to isolate the y variables to be able to solve these inequalities. firstly, add 0.5x on both sides of the first inequality and subtract 1.5x on both sides of the second inequality:

now since the slope is positive for the first inequality, this means that the line going upwards belongs to the first inequality, and the line going downwards belongs to the second inequality.

next, since y ≥ in the first inequality, this means that the shaded region will be above the first inequality's line, thus shading regions a and b.

next, since y ≤ in the second inequality, this means that the shaded region is going to be below this line, thus shading regions a and c.

since both lines shade region a, this means that region a is the solution.

step-by-step explanation:

mark brainliest!