Answer
a. 240 pieces
b. 63 score
Work Step by Step
a. x = the number of pieces of luggage loaded onto an airplane
$51.55 pounds \times x = 12,372 pounds $
$x = 240$
b. x = the grade of seventh student
$(81+75+93+88+82+85+ x )/7 = 81$
$x = 63$
Introductory Statistics 9th Edition
by Mann, Prem S.
Published by
Wiley
ISBN 10:
1-11905-571-7
ISBN 13:
978-1-11905-571-6
Chapter 3 - Advanced Exercises - Page 119: 3.101
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