Answer:
1764 ways
Step-by-step explanation:
Number of ways of selecting 6 cows from 9 cows and 5 buffaloes from 7
Using the combination formula:
nCr = n! ÷ (n - r)! r!
Ciw selection:
9C6 = 9! ÷ (9-6)! 6!
9C6 = 84
Buffalo Selection:
7C5 = 7! ÷ (7-5)! 5!
7C5 = 21
9C6 * 7C5
84 * 21
= 1764 ways
Answer:
7
Step-by-step explanation:
a negative number squared is positive
1. She can travel 18 miles. Subtract 35 - 2 (initial fee) to have 33. divide 33 by 1.75 to get 18.85. To check how much her total would be, use inverse operations. 18.85 * 1.75 = 32.9875. 32.9875 + 2 = 34.9875. It is barely under $35 but still in her budget.
2. 20m * $1.75 = $35. $70 - $35 = $35. Yes, she can cover the fare. Samantha has more than needed. She can afford the taxi fare and still have money left for future use.
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