Answer:
$545
Step-by-step explanation:
Let the total cost per year be y.
He spent a flat amount of $125 per year.
Then he spend an additional $35 per months. There are 12 months in a year so that's a total of 35*12=$420.
Add up the cost
y = 125 + 420 = $545
Answer:
she spent 20 minutes bathing the dog
Step-by-step explanation:
If Dina started at 8:15 and finished at 9:05 we have to calculate how many minutes were
from 8:15 to 9 there are 45 minutes, so at that 45 minutes we add the 5 minutes to 9:05 and we have
45+5 = 50 minutes
if it takes 30 minutes to clean your room, we have to subtract them after 50 minutes
50 - 30 = 20 minutes
she spent 20 minutes bathing the dog
Answer:
12.9
Step-by-step explanation:
30400=
30400=
\,\,22000e^{0.025t}
22000e
0.025t
Plug in
\frac{30400}{22000}=
22000
30400
=
\,\,\frac{22000e^{0.025t}}{22000}
22000
22000e
0.025t
Divide by 22000
1.3818182=
1.3818182=
\,\,e^{0.025t}
e
0.025t
\ln\left(1.3818182\right)=
ln(1.3818182)=
\,\,\ln\left(e^{0.025t}\right)
ln(e
0.025t
)
Take the natural log of both sides
\ln\left(1.3818182\right)=
ln(1.3818182)=
\,\,0.025t
0.025t
ln cancels the e
\frac{\ln\left(1.3818182\right)}{0.025}=
0.025
ln(1.3818182)
=
\,\,\frac{0.025t}{0.025}
0.025
0.025t
Divide by 0.025
12.9360062=
12.9360062=t
t = 12.9
12.9
Answer:
Slope is -4
Step by step analysis:
The slop is always the X