18/30 simplifies into 6/10 which then is put in decimal form of 0.6
Answer:
That is my answer to your question
Yes, the student's theory is correct, because the survey shows that the seventh graders spend more time playing games on the weekend than the eighth graders.
Answer:
Step-by-step explanation:
Given that the number of people with Alzheimer's disease in the United States age 65 years and over is projected to be

where N is in millions where year 2010 corresponds to t=0
For 2020, 10 years lapsed hence t= 1
a) 
So 4.78025 million people
b) Growth = N(1)-n(0) =0.08025 million
c) N(4) = 5.084
Average rate of change = (5.084-4.7)/4 =0.096 million per decade
Supplementary angles add up to 180°
-> The measure of an angle that is supplementary to a 71° angle is 180° - 71° = 129°