There are 65 children in sixth grade. There are 15 more boys than girls. How many girls are in the class?
2 answers:
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Answer:
C. 10
Step-by-step explanation:
We are given a graph representing the height of the elevator with respect to time.
Since, we know that,
X-axis represents the 'time' in seconds and y-axis represents the 'height of the elevator' in feet.
As, the coordinate points on the graph are given by,
(1,10), (2,20), (3,30) and (4,40).
So, the rate of change can be found out by solving, .
Hence, the rate of change of the relationship is 10.