Question

Tanner calculates the volume of a rectangular prism with dimensions ft by 5 ft by ft. His work is shown below.

What error did Tanner make?

He multiplied the numerators incorrectly.

He multiplied the denominators incorrectly.

He simplified incorrectly.

He wrote 5 as a fraction incorrectly.

Answer 1

b

Explanation:

Answer 2

He multiplied the denominators incorrectly

(COMPLETING THE MISSING PARTS OF THE QUESTION)

Tanner calculates the volume of a rectangular prism with dimensions of three by four feet by five feet by one half feet.

His work is shown below:

V = L.W.H

V = (3/4)(5/1)(1/2) = ((3)(5)(1)) / ((4)(1)(2)) = 15/6 = 2.5

What error did Tanner Make?

Solving the Question:

We know that volume is given by:

V = L.W.H

where

L = 3/4 ft

W = 5/1 ft

H = 1/2 ft

Find V:

`V = (3)/(4)\cdot(5)/(1)\cdot(1)/(2)\\\\V=(3\cdot5\cdot1)/(4\cdot1\cdot2)\\\\V=(15)/(8)\\V=1.875`

As the product of denominators is 8, not 6 as to per Tanner's calculations, he multiplied the denominators wrong