Answer:
range of scores on final exam student get B is 90 to 100
Step-by-step explanation:
given data
Psychology 101 score = 66
average of his midterm = between 78 and 90
maximum = 100 points
to find out
range of scores on final exam student get B
solution
we consider here lowest marks need in final = x
so average at two marks should be
equation is
average marks = 0.5 × ( mid term marks + final marks ) .................1
put here value
78 = 0.5 × ( 66 + x )
x = 90
and
90 = 0.5 × ( 66 + x )
x = 114
so range 90 to 114
but maximum marks is 100 so
range of scores on final exam student get B is 90 to 100
Answer:
30 books
Step-by-step explanation:
125%= 1.25
1.25 times 24= 30
Answer:
B
Step-by-step explanation:
x² - 4x - 7 = 0
(x - 2)² = 11
Take x as Danas age,
equation,
x×1/4= x
hope this helps....
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