Answer:
Step-by-step explanation:
2 4 5 6
4 8 10 12
6 12 15 18
8 16 20 24
10 20 25 30
12 24 30 36
14 28 35 42
16 32 40 48
18 36 45 54
20 40 50 60
22 44 55 66
24 48 60 72
I have set this table up in a spreadsheet and colored in the squares as they appear in the table above. I have not counted any number as a member of 2 categories twice. An example would be 36 which is a multiple of 3 and a perfect square.
I have answered the question as though the question took on the properties of a dart board: you through a dart and whatever you hit is counted either as prime, a multiple of 3 or a perfect square
That said, there are
primes: 2
multiples of 3: 24
Perfect squares: 4
Total number of choices: 12*4 = 48
Probability: 30 / 48 = 5/8 or 0.625
If you are supposed to use some other method of counting, please leave a note.
Awnser
bepending on how many marbles are in the bag will determine what color of marble will be drown out of the bag
Step-by-step explanation:
Answer:
7/10 can't be simplified, 2/10->1/5
Step-by-step explanation:
7/10 cannot be simplified as 7 and 10 don't have any common factors other than 1
2/10 can be simplified by a factor of 2 to get 1/5
Answer:
B
Step-by-step explanation:
Answer:
The speed of the plane in still air and the speed of the jet stream are 525 miles per hour and 75 miles per hour.
Step-by-step explanation:
From Mechanical Physics, we know that absolute velocity of the airplane () is equal to sum of the absolute velocity of the jet steam and the relative velocity of the airplane with respect to jet stream (velocity of the airplane in still air) (). Al velocities are measured in miles per hour. Let suppose that both jet stream and airplanes travels at constant velocity. Now, we construct the following system of linear equations:
Flight with the jet stream
(1)
Flight against the jet stream
(2)
The solution of this system of linear equations is:
,
The speed of the plane in still air and the speed of the jet stream are 525 miles per hour and 75 miles per hour.