Answer:
450 minutes
Step-by-step explanation:
Given
w = 45000 - 100t
Required
Determine how long it'll take to empty the pool
Being empty means there's no water in the pool.
So, we have to set w to 0 to get the value of t
i.e w = 0
Substitute 0 for w in w = 45000 - 100t
0 = 45000 - 100t
Collect Like Terms
100t = 45000
Divide through by 100.
t = 450
Hence, it'll take 450 minutes to empty the pool
You just multiply them together
Answer:
9/15 = 0.6 = 60%
Step-by-step explanation:
B be because
8*3+8*2=24+16
To count for the change you can subtract the numbers
the change from 11 to 12: 61.5 - 59.5 is 2
the change from 12 to 13: 65 - 61.5 is 3.5
the change from 13 to 15 69 - 65 is 4
Hope this helps :)