What to the nearest whole number of 0.9
1 answer:
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Solution:
we are given that
In a class, every student knows French or German (or both).
15 students know French, and 17 students know German.
Suppose there are x student who knows both French and German.
Then Total number of student in the class will be
But to guess the largest possible number of student in the class we can assume x=0
Hence the largest Possible number of Student in the class=32
Start with
Subtract 15 from both sides:
Divide both sides by 2a: