yamely estimates that she will take 95 minutes to run 7 miles. The actual time it took her to run the distance was 80 minutes. What is your yamely's percent error ? help :)

38+105= 143, 39+104=143, and you will find then adding the numbers on opposite sides, moving inwards yields the answer 138 every time. because of this, you’re going to multiply 138 times the number of pairs, which is 34. therefore, 34*138= 4692(i’m sorry if it’s the wrong numbers, but it’s the right concept)