Determine whether each event is impossible,
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
Answer:
he age of girl 3 years ago is 8.5 years .
Step-by-step explanation:
Given as :
The present age of seventh grader girl = 12 years
Let The age of her 3 years ago = x years
So The age of girl years ago = x years
<u>Now, According to question</u>
The age of girl 3.5 years ago = 12 - 3.5
Or, The age of girl 3.5 years ago = 8.5 years
Hence The age of girl 3 years ago is 8.5 years . Answer