If a person invested half of her money at 9% and half at 7% and received $160 interest, find the total amount of money invested.
2 answers:
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Answer:
Step-by-step explanation:
Using the values and
, the slope is
.
So, the equation is:
Answer:
The treatment decays by half each week.
Step-by-step explanation:
The decay function is given by:
Here,
<em>y</em> = final value
<em>a</em> = initial value
<em>r</em> = decay rate
<em>t </em>= time
The decay function for one medications to treat dogs for fleas is:
Here the decay rate is:
The treatment decays by half each week.
