Algebra Help Me Out Please :) !?

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Algebra Help Me Out Please :) !?

Word problem.

A student earned on tests scores of 88,75,89 and 81. What is the lowest score the student must get on the next test to keep an average of 80?

2007-12-10 08:45:47 · 2 answers · asked by ? 2 in Science & Mathematics ➔ Mathematics

2 answers

(88+75+89+81+x)/5=80
x=400-88-75-89-81=67

2007-12-10 08:49:36 · answer #1 · answered by Caps Lock (TRS_BC) 6 · 0⤊ 0⤋

(88 + 75 + 89 + 81 + X)/5 = 80

2007-12-10 16:51:55 · answer #2 · answered by dogsafire 7 · 0⤊ 0⤋