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aliina [53]
2 years ago
13

How to do permutations?

Mathematics
1 answer:
PIT_PIT [208]2 years ago
7 0
Permutations are written as nPx where n is the number of total choices possible and x is the number of choices that will be used. This is calculated as nPx = n! / (n-x)!.
Permutations represent the number of ways we can choose x objects from n possibilities where the order of selection matters.
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The distance between the cities Atlanta and Indianapolis is 540 miles. A motorcycle's speed is 48 mph. For a car it takes 2.25 h
lyudmila [28]

Answer:

5 hours

Step-by-step explanation:

A motorcycle will complete the 540 mile trip in 11.25 hours

And the car will complete it 2.25 hours less, i.e 11.25 -2,25 = 9 hours.

then,

Speed of the car:

60t + 48t = 540

108t = 540


If you Divide both sides by 108 we get t = 5

So, they will meet in 5 hours,



6 0
3 years ago
Is the GCF of any two odd numbers always odd?
vampirchik [111]
Probably true

you can test it too
8 0
3 years ago
NEED HELP! HOPE THIS IS A BETTER PHOTO
avanturin [10]
You need a picture of the data table...
4 0
3 years ago
A grid shows the positions of a subway stop and your house. The subway stop is located at (–9, 7) and your house is located at (
miv72 [106K]
For this case, the first thing you should do is use the distance between points formula.
 We have then:
 d = root ((x2-x1) ^ 2 + (y2-y1) ^ 2)
 Substituting we have:
 d = root ((9 - (- 9)) ^ 2 + (-2-7) ^ 2)
 d = 20.1246118
 Rounding off we have:
 d = 20 units
 Answer:
 
The distance, to the nearest unit, between your house and the subway stop is:
 
B. 20
8 0
2 years ago
What is the value of x in the equation 3x- 4y =65, when y= 4?
Alexus [3.1K]
3x-4y=65

3x=65+4y

x=(65+4y)/3, when y=4

x=(65+4*4)/3

x=(65+16)/3

x=81/3

x=27
3 0
3 years ago
Read 2 more answers
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