Answer: 10 bags that weigh 2 lb.
5 bags that weigh 4 lb.
2.5 bags that weigh 8 lb.
Hope this helps.
Step-by-step explanation:
Answer:
C(t)= 0.5kg* (2/3) ^ t
Step-by-step explanation:
The water purifier will filter 1/3 of the current contaminants each hour. In other words, it will reduce the contaminant into 2/3 of it current mass. If the contaminant 1 kg, after 1 hour will be 2/3 kg, then become 4/9 kg after 2 hours. You have to multiply the contaminant with 2/3 every hour.
The equation will be
C(t)= X * (2/3) ^ t
C(t)= 0.5* (2/3) ^ t
Answer: x + 1 = 15
Step-by-step explanation:
solve -
x= 15 - 1
x = 14
x is a variable so it's not fix value in math
Answer:
1 mile
Step-by-step explanation:
1m =160934 cm
Answer:
≈ 15.73 in
Step-by-step explanation:
Since the volume of a cylinder is ![\pi r^{2}](https://tex.z-dn.net/?f=%5Cpi%20r%5E%7B2%7D)
, we can set the equation,
![\pi r^{2}](https://tex.z-dn.net/?f=%5Cpi%20r%5E%7B2%7D)
= 1000
Since the radius of the circle is 4.5, we square it to get
![20.25 \pi](https://tex.z-dn.net/?f=20.25%20%5Cpi)
= 1000
Dividing by 20.25 on both sides, we get
≈ 49.38
Dividing by 3.14 on both sides, we get
≈ 15.73 in