The graph shows the value of a car At different years after janine purchased it. which answer is the best estimate for the avera
ge rate of change between year 1 in year 7?
2 answers:
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Answer:
53.2 mph
Step-by-step explanation:
Mara's family travels 239.4 miles between the hours of 9:10 a.m. to 1:40 p.m.
1:40 p.m. is 13:40.
Thus, they traveled for
13 hours 40 minutes - 9 hours 10 minutes = 4 hours 30 minutes
that is hours.
Use formula:
where
D = distance
r = rate
t = time.
In your case,
D = 239.4 miles
t = 4.5 hours
Hence,
<u><em>Answer:</em></u>
She stayed awake for 295 minutes today
<u><em>Explanation:</em></u>
<u>We are given that:</u>
Yesterday, she drank one cup
Today, she drank of a cup more than yesterday
<u>This means that:</u>
Number of cups she drank today =
Now, we know that she drinks of a cup per hour any time she is not sleeping
We use cross multiplication to get the time she took to drink cups
1 hour ...........................> of a cup
?? hours ......................> cups
Time taken =
This means that she was awake for hours
<u>Finally, we convert this to minutes:</u>
Knowing that 1 hour has 60 minutes, therefore:
She stayed awake for minutes
Hope this helps :)