Answer
10 runners
Work Step by Step
Out of 145 runners, we know that 72 run only on the weekends and 63 run on both the weekend and during the week. The remaining runners run only during the week. So, 72+63=135. 145-135=10.
Algebra 1
by Hall, Prentice
Published by
Prentice Hall
ISBN 10:
0133500403
ISBN 13:
978-0-13350-040-0
Chapter 3 - Solving Inequalities - Chapter Test - Page 227: 24
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