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torisob [31]
3 years ago
8

BRAINLIEST NEED HELP ASAP ALOT OF POINNTS

Mathematics
2 answers:
jeka57 [31]3 years ago
8 0

Answer:I believe it is -4

Step-by-step explanation:

Ivanshal [37]3 years ago
6 0
-7 is the correct answer
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In a race between 18 people, how many ways can the top 5 finishers be arranged?
snow_lady [41]

Answer:

Step-by-step explanation:

This is permutation, since order matters.  The formula for us is

₁₈P₅ = \frac{18!}{(18-5)!} which simplifies to

₁₈P₅ = \frac{18*17*16*15*14*13!}{13!}

The factorial of 13 cancels out on the top and bottom leaving you with

₁₈P₅ = 18 × 17 × 16 × 15 × 14

which comes to 1,028,160 ways

Another way to look at it is:  the first 5 people of 18 finish and the others you don't care about.  Once the first place person is first, there are only 4 of the 18 left to finish in second place.  Then there are only 3 left to finish in third place, etc.  So if we use that reasoning, we don't even need to use the formula, we can just say

18 * 17 * 16 * 15 * 14 and those are the first 5 people of 18 to finish.

8 0
3 years ago
A meteorologist reports that the ration of snowfall in January to total snowfall during the average winter is 2 to 5. If 34 inch
Zepler [3.9K]

Answer:

13.6 inches.

Step-by-step explanation:

First do 2/5 = x/34, then multiply 34 by 2 and you get 68, then 68 divided by 5 is 13.6!

Hope this helped!

4 0
3 years ago
Maria bikes 15 miles per hour and starts at 10 miles. Glen bikes 20 miles per hour and starts at 0 mile. At what time and distan
Ilya [14]
10/(20-15)=2 hours
20*2=40 miles
15*2+10=40 miles
Glen catch up with Maria after 2 hours at 40 miles

6 0
3 years ago
How to simplify 24/3
Arturiano [62]

You can simplifying 24/3 by dividing 24 by 3.

24÷3=8

The answer is 8.

7 0
3 years ago
Read 2 more answers
Write the fraction as the sum of two fractions with the same denominator
grandymaker [24]
1/4 + 1/4 = 1/2

I got 1/2 because if you add 1/4 and 1/4 you'd get 2/4, and when you simplify 2/4 you'd get 1/2.
3 0
3 years ago
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