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Leona [35]
3 years ago
12

Can anyone help me with this

Mathematics
1 answer:
ANTONII [103]3 years ago
4 0

Answer:

Sure, what do you need

Step-by-step explanation:

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Lisa and Krystal are planning trips to ten countries this year. They have 14 countries on their bucket list, in how many ways ca
Salsk061 [2.6K]

Answer:

1,001 ways for them to decide.

Step-by-step explanation:

The order in which they will visit the countries is not important, so we use the combinations formula to solve this question.

Combinations formula:

C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

In this question:

10 countries from a set of 14. So

C_{14,10} = \frac{14!}{10!(14-10)!} = 1001

1,001 ways for them to decide.

8 0
3 years ago
I just started learning about rate and I am stuck on a question.(A watch keeps perfect time but only has an hour hand. If the ho
8090 [49]

Answer:

36 minutes past 1, or 1:36

Step-by-step explanation:

A watch normally has an hour hand that does one revolution in 12 hours.

It takes 1 hour to go from the 1 o'clock position to the 2 o'clock position.

Since 1 hour equals 60 minutes, it takes 60 minutes to go from the 1 o'clock position to the 2 o'clock position.

The hour hand is 3/5 of the way from 1 to 2, so the number of minutes past 1 o'clock is 3/5 of 60 minutes.

3/5 of 60 minutes =

= 3/5 * 60 minutes

= 3/5 * 60/1 minutes

= 180/5 minutes

= 36 minutes

The time is 36 minutes past 1, or 1:36

7 0
3 years ago
John borrowed a certain amount of money from Tebogo at a simple interest rate of 8,7% per year. 
Anestetic [448]

Answer:

Step-by-step explanation:

5 0
3 years ago
What is the value of z?
Amiraneli [1.4K]

Answer:

if a z-score is equal to +1, it is 1 standard deviation above the mean.

Step-by-step explanation:

8 0
3 years ago
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Number 28 HELP!!!! I don't know
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It is letter C.) can u tell
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3 years ago
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