By solving this problem, I got D.-8.Right?
Yes because 484 + 484 equals 964
And equation you should always do the opposite of the sign you get to find your answer so he got minus he should use Addition
Answer:
8.5
Step-by-step explanation:
Here is how you do it
do (6 1/3)+(2 1/6) and the answer should equal 8.5.
Hope that was helpful, please let me know if you have any questions.
Answer:
11.2 gallons
Step-by-step explanation:
by multiplying 16 by 0.965 (as it is a 4.5% decrease per year) and then multiplying the answer by 0.965 and so on until done a total of 10 times gets you the answer 11.2 gallons. there is a quicker way to do it but I cannot remember sorry
Assume the original mass,
a=100, then we know
p(t)=0.6*100=60,
h=100,
Substitute into equation and solve for t.
60=100*(1/2)^(t/100)
divide by 100
0.6=(1/2)^(t/100)
take log on both sides
log(0.6)=(t/100)log(1/2)
divide each side by log(1/2)
t/100=log(0.6)/log(0.5)
t=100log(0.6)/log(0.5)
=100(-0.5108)/(-0.6931)
=73.70 days, approximately