Solve it u need to multiply 32 with 5 then divide 32 from 60 and times it by 3 and add it
Average means add all scores and divide by number of scores earned
last score is x
so the sum is 75+81+x
3 scores so (75+81+x)/3=average
must be no less than (greater than or equal to 80)
(75+81+x)/3≥80
solve
times both sides by 3 to clear fraction
75+81+x≥240
156+x≥240
minus 156 from both sides
x≥84
the studen must earn at least 84 on last exam
Answer:
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A
Answer:
a.
b.
c.
e.
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all are equivalent
Answer: 12
Step-by-step explanation: