Answer
50
Work Step by Step
Solve : 0.6x + 0.4(100-x) = 50
0,6x + 40 -0.4x = 50
0.2x = 10
x = 50
Check :
LHS = 0.6x + 0.4(100-x) = 0.6(50) + 0.4(100-50) = 0.6(50) + 0.4(50) = 50
RHS = 50
Since LHS = RHS, Hence Verified
Algebra and Trigonometry 10th Edition
by Larson, Ron
Published by
Cengage Learning
ISBN 10:
9781337271172
ISBN 13:
978-1-33727-117-2
Chapter 1 - 1.2 - Linear Equations in One Variable - 1.2 Exercises - Page 87: 26
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