A student was asked to use the formula for the perimeter of a rectangle, P = 2ℓ + 2w, to solve for ℓ. The student came up with a

Question

valkas [14]

3 years ago

6

A student was asked to use the formula for the perimeter of a rectangle, P = 2ℓ + 2w, to solve for ℓ. The student came up with a

n answer, P − 2w = 2ℓ. What error did the student make? Complete the explanation. Then solve for ℓ.

Mathematics

1 answer:

inessss [21] · Answer 1 · 2022-08-31T06:15:36+03:00

inessss [21]3 years ago

7 0

So the student was correct in subtracting 2w from both sides, however, he cant solve for l unless he divides 2 on both sides so the l becomes by itself :)