Answer:
60
Step-by-step explanation:
Let the original number be x.
According to the question we can write as (2/3)x+20x
On rearranging x−(2/3)x=20
Now taking the L.C.M od 1 and 3 is 3
(3x−2x)/3=20
x/3=20
Again by transposing x=60
So the original number is 60
Well, first in total there are 16 marbles. So the change of getting a black is 7/16. Now we have 15 marbles. The chance is 6/15. Now we have 14 marbles. The chance is 9/14. When you multiply 7/16 x 6/15 x 9/14 = 9/80
Hope this works
1. You have that:
-The <span>police car accelerates 60 meters per second.
- The minivan has a speed of 45 meters per second and is 600 meters ahead of the police car at the beginning of the chase.
2. Therefore, you have:
V1xt=V2xt-600
V1 is the speed of the minivan and V2 is the speed of the police car
3. The time is:
t=-600/V1-V2
t=-600/(45-60)
t=40 seconds</span>
She could use the decimal 0.5 which is equal. think of 100 an you take half of that and it be 50% then transform it into a decimal
