Answer:
df(t)/dt = 10 - 0.8f(t)
Step-by-step explanation:
The net rate of change, df(t)/dt = rate in - rate out
The rate in = rate litter forms on ground = 10 g/cm²/yr
Since f(t) is the amount of litter present at time, t, in g/cm² the rate out = rate of decomposition = the percentage rate × f(t) = 80% per year × f(t) = 0.8f(t) g/cm²/yr
Since df(t)/dt = rate in - rate out
df(t)/dt = 10 - 0.8f(t)
So the desired differential equation is
df(t)/dt = 10 - 0.8f(t)
Answer:
0.75 times.
Step-by-step explanation:
Hope i helped and can i pls have brainliest.
Answer: 30 minutes
How: 45 minutes divided by 15 math problems equal 3 minutes per math problem. 3 minutes per math problem times 10 math problems equals 30 minutes on 10 math problems.
45/15=3
3*10=30
Expression step by step:
(4 + 56 + 66) - 4 = → we solve for 4 + 56
(60 + 66) - 4 = → we solve for 60 + 66
126 - 4 = → we solve for 126 - 4
122 → final answer
Hope it helped,
BioTeacher101
Answer:
$16.38
Step-by-step explanation:
so first you have to find 36% of 26 to do this just multiply 0.36 by 26. You get $9.62. You subtract this from $26 to find the total amount she paid