You will need about 3 4ths
Answer:
Dan is correct
Step-by-step explanation:
First, I calculated the amount of hours that the graph shows in total, coming up with a total of 3,085 hours. I do this by multiplying the number of adults surveyed by the number of hours they spent. So for the first column, (80+70)*1, second column, (90+80)*2, third column, (135+130)*3, fourth column, (140+135)*4, and fifth column, (65+75)*5 if you get what I mean. Then I add up all values. Knowing that there were two sets of 500 American adults interviewed already, I came to the conclusion that 1,000 total adults were surveyed. Finally, I divided the total number of hours(3,085) by the total number of adults interviewed (1,000) to get a mean of 3.085 hours, rounding it to 3 hours and proving that Dan is correct.
Answer:
89
Step-by-step explanation:
1
Answer:
2 g/cm³
Step-by-step explanation:
The volume is not given, so find that first:
2 cm x 3 cm x 2 cm = 12 cubic cm = <em>V</em>
Mass is given: <em>m </em>= 24 g
Using the density formula, solve:
<em>d </em>= <em>m</em>/<em>V</em>
<em>d </em>= 24 g/12 cubic cm
<em>d </em>= 2 g/cubic cm
A because 30×16=480 the closest answer
