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Nesterboy [21]
3 years ago
13

A tanks length is 3 feet longer than its width. The height is 1 foot less than the width. The volume of the tank is 160 cubic fe

et. What is the width of the tank?
Mathematics
1 answer:
Anton [14]3 years ago
3 0

Answer:

The width of the tank is 5 feet.

Step-by-step explanation:

Let the width of the tank be w ft.


Then, the length of the tank will be l=(w+3)ft

and the heigth will be h=(w-1)ft.


It was given that the volume of the tank is 160ft^3.


Recall that the tank is a cuboid or a rectangular prism.


The volume is given by;


V=l\timesb \times w \times h.


We substitute the given values into the formula to obtain;


160=(w+3)(w)(w-1)


We expand to obtain


160=w(w^2-w+3w-3)


160=w(w^2+2w-3)


160=w^3+2w^2-3w


w^3+2w^2-3w-160=0


\Rightarrow w=5


Therefore the width of the tank is 5 feet.







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