If nCr : (n+1)Cr : (n+2)Cr = 1:3:7, find the values of n and r.

Answers

Answer 1

Answer:

Answer:

r=4, n=5

Step-by-step explanation:

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Nadia bought 5 tickets to attend a spaghetti super fundraiser at her. school.The equation 5x equals 32.50 can be used to find x, the cost of each ticket in dollars.Which equation represents the cost of each ticket. A: x equals 32.50/5
B: x equals 32.50(5)
C: x equals 32.50 - 5
D: x equals 32.50 + 5

Answers

Answer:

32.50 is the total cost, so you need to find the cost of each separate ticket.

First, you take the total, 32.50, and you divide it by the number of tickets, 5.

32.50/5

The answer is A.

Step-by-step explanation:

Jasmine is a real estate agent. She earns a base salary of $1,500 per month plus a commission of 2.75% of her sales. Last month her sales totaled $540,000. What were her total earnings last month?

Answers

Answer:

$ 16350

Step-by-step explanation:

base salary of 1500 per month plus a 2.75% commission

total earnings last month are :

1500 + 0.0275(540,000) =

1500 + 14850 =

$ 16,350 <===== hmm..I would love to make that in 1 month

Pat read 248.2 pages during a 4.25 hour one afternoon. how many pages did he read each hour if he read the same number of pages each hour

Answers

Simple! Divide 248.2 by 4.25, and you get 58.4. So basically, Pat read 58.4 pages per hour.

if he reads the same number of pages each hour the answer will be 1054.85

Help pleassee i really need help

Answers

Answer:

15. 18 7/10

18. -14 2/5

19. 6 3/4

20. 1 7/12

Step-by-step explanation:

if you need help with math i recommend mathpapa.com it really helps out a lot just type in the equation and it will give it to you. That's what i used to help you out, hopefully you did good!

At the start of "Rip Van Winkle," why is Rip popular with the children of the village? A. He gives them rides in his wagon. B. He plays songs for them on his guitar. C. He teaches them to fly kites and shoot marbles. D. He teaches them how to read and write.