Arectangle has a length that is 4 times longer than it's width. if the total area of the rectangle is 121 square feet, what is the length (longer side) of the rectangle

L = 22 ft

Step-by-step explanation:

Let L and W represent the length and width respectively.

L = 4W, or W = L/4.  Use W = L/4 because we want to solve for W, not for L.

Area of a rectangle:  A = L · W

Here,                          A =  L · L/4 = 121 ft²

Mult. both terms by 4 removes the fraction:

                                         L² = 484

Finding the square root of this result:  L = 22

The length of the rect. is 22 ft.

y=mx+b

step-by-step explanation:

m is slope, b is y-intercept

1gm = 1000mg so 0.1gm = 1000mg

first, convert the weight to kg

160lb * 1kg/2.2lb = 72.7kg

next, the dose

72.7kg * 100mg/kg = 7270mg