What is it ?.............
Answer: (1) 13/20 (2) 8 (3) Yes. They are proportional
<u>Step-by-step explanation:</u>
(1) 13 students take the bus.
33 - 13 = 20 students do not take the bus
(2)
(3)
All of the fractions simplify to the same number so they ARE proportional.
If one equation is the same, there is a multiply factor:
f*(3x+2y)=f*(-12)
You need to find the same factor for both members.
3x-2y=12. This is not the same.
-3x-2y=12. This is the same. The factor is (-1)
15x+10y=-60. This is the same. The factor is 5.
6x+2y=-12. This is not the same.
6x+4y=-24. This is not the same.
1.5x+y=-6. This is the same. The factor is 1/2.
x+ 2/3y=-12. This is not the same.
Good luck!
M.
Answer:
C should be the correct answer
Answer:
Step-by-step explanation:
The easiest way to do this is to assume you don't get a 1 or 2. You make your first draw from 8.
8 * 7 * 6 * 5 = 1680
The total number of ways of drawing 4 marbles is
10*9 * 8 * 7 = 5040
P(`(1 or 2) ) = 1680 / 5040 = 0.33333
The probability of getting a 1 or 2 in 4 throws = 1 - 0.3333 = 0.66667
