Mrs. Healthy walked along a running track at 2000 m/h. She took 4 min more than Mrs. Wise to walk the entire length of the track once. If the track is 400 m long, Mrs. Wise's average walking speed was ___m/min.

The answer that i got was 8/3

If two sides of a triangle are congruent, then the angles opposite those sides are congruent. the converse of the base angles theorem, states that if two angles of a triangle are congruent, then sides opposite those angles are congruent.