Abathtub has dimensions of 5ft long, 3ft wide, and 2ft tall. the tub itself weighs 300lbf. the tub contains 100 gallons of water at t-110°f. a human weighing 200lbs sits down in the tub. a. what is the volume of water in ft? 1. grab a fluids text or find a table of specific weight of water in "english units" with temperature (it's not 62.4lbf/ft'), and find the weight of the water in units of ibf. what is the total weight of tub plus human plus water? what is the pressure on the floor in units of psi (ibf/in2)? b. c. d.

a) What is the volume of water in ft?

We are given that The tub contains 100 gallons of water

So,

b)Find the weight of the water in units of Ibf.

Specific weight of water at 100° F =

Weight of water =

c)What is the total weight of tub plus human plus water?

Total weight = Weight of tub + weight of human + weight of water

d)What is the pressure on the floor in units of psi (Ibf/in2)?

1 feet = 12 inches

Area of floor =

Pressure =

Hence the pressure is 0.691 psi

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18