24 pencils = 100%
30 pencils = ___%
30 - 24 = 6, so:
24 / 6 = 4 (it means that there are 4 sixes in 100%)
100% / 4 = 25%
Check: 25% * 24 = 25/100 * 24 = 1/4 * 24 = 6
30 - 6 = 24 (correct)
Answer: There was an increase by 25%
20 miles = 100%
11 miles = ___%
1 mile = 100% / 20 = 5%, so:
5 * 11 = 55 [percent]
100% - 55% = 45%
Check: 45% * 20 = 45/100 * 20 = 45/10 * 2 = 9/2 * 2 = 9
20 - 9 = 11 (correct)
Abswer: There was a decrease by 45%
5, 10, 15, 20, 21, 22, 23, so 23 minutes before 3:37
Answer with Step-by-step explanation:
The condition that at least 2 women are included is satisfied in the below cases:
Case 1) Exactly 2 women included
Thus the total number of ways to select the committee is
Case 2) Exactly 3 women included
Thus the total number of ways to select the committee is
Case 3) Exactly 4 women are included
Thus the total number of ways to select the committee is
Thus the total number of commitees possible are
Part 2)
If Mr and Mrs Simith are not to be both included then in that case the number of ways are the sum of
1) All cases of Mr Smith included and Mrs smith excluded
2) Mrs smith included and Mr Smith Included
Thus the cases are
Hello, your question is very incomplete but from what I'm under standing I think your answer is:
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Hope this is correct and helps you!