Answer:
24 38%
25 17.04%
26 53%
Explanation:
Q24
L = MN
M becomes 1.15M; N becomes 1.2N
L = (1.15M)(1.2N)
L = 1.38MN
L was MN; now L is 1.38MN
Answer: The percent increase in L is 38%
Q25
A = bh/2
A = 0.5ab
a becomes 1.33a; b becomes 0.88b
A = (1.33a)(0.88b)/2
A = 0.5852ab
The area increased from 0.5ab to 0.5852ab.
0.5852/0.5 = 1.1704
Answer: The percent increase in area is 17.04%
Q26
30% of members are male
70% of members are female
Male training for marathon: 60% of 30% = 18%
Female training for marathon: 50% of 70% = 35%
Total: 18% + 35% = 53%
Answer: 53%