Question

Hallie can use the equation p = 4l + 4w + 4h to determine the sum of the lengths of the edges of a rectangular prism. She begins to solve the equation for h but runs out of time. Her partial work is shown below:
p = 4l + 4w + 4h

= l + w + h
h = –
Which expression should follow the subtraction in Hallie’s equation?

Answer 1

Answer: ( l + w)

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Step-by-step explanation:

Answer 2

Answer:

h = p - l - w

Step-by-step explanation:

p = 4l + 4w + 4h       Divide l, w, and h by 4

p = l + w + h              Set the equation equal to h

h = p - l - w