Astudent was asked to use the formula for the perimeter of a rectangle, p = 2ℓ + 2w, to solve for ℓ. the student came up with an answer, p − 2w = 2ℓ. what error did the student make? complete the explanation. then solve for ℓ.

Step-by-step explanation:

To complete the solution, the equation the student came up with must be divided by 2:

  P/2 -w = ℓ

Then the sides can be swapped to give ...

  ℓ = (P/2) - w

answer: (c) m∠qpo + (2x + 16)° = 180°

step-by-step explanation:

the opposite angles of a quadrilateral are supplementary.

so, ∠o + ∠q = 180°   and   ∠p + ∠r = 180°

since ∠r = 2x + 16°, we can use substitution as follows:

∠p + ∠r = 180°

∠p + (2x + 16)° = 180°

answer: 94

step-by-step explanation: 79+91+92+94+94 = 450 divided by 5 (since there are 5 number that are being added) = 90