Marks scored in three tests = 96 , 86 , 78
Total of these scores = 260
Let the score that needs to be scored be = x
Average needed of four scores = 90
Average = total scores added of all subjects/number of subjects
Hence, a score of 100 is required to make an average score of 90.
Answer:
the answer can be anything greater then 1.35 but less then 1.4. so like 1.7
Step-by-step explanation:
We are given
where
y is the cost in dollars
x is distance in dollars
now, we can find derivative
so,
So,
the rate of change of the cost in dollars with respect to the number of miles is 1.5.........Answer
X×X/2+3X+C
1,380 people