Pls asa will mark brainliest the length of a rectangle is 1 ft less than three times the width. the area is 310 ft^2.find the dimensions of the rectangle

w = 10

l=31

Step-by-step explanation:

To calculate an area of a rectangle, use the formula A=l*w. We know the length is 1 ft less than three times the width. So l = 3w - 1. So the area is A= (3w-1)*w.

We also know the area is 310. Substitute this value for A and solve.

To solve the quadratic, use the quadratic formula:

Here a=3, b=-1 and c=-310.

This is w and must be positive since it is distance. So w=10.333....

To find l, substitute into l = 3w-1.

l=3(10.333..)-1

l=31-1 = 30

$4034.40

the perimeter of the field is the sum of the lengths of the four sides:

47 yd + 158 yd + 47 yd + 158 yd = 410 yd

the cost of 3 ft (1 yd) of fence is 3×$3.28 = $9.84.

so the cost of jake's wood perimeter fance is

(410 yd) × ($9.84 /yd) = $4034.40

slope is 35 and 20 miles is the y-intercept.

step-by-step explanation: