At a school there are 864 students and 80 staff members. 5/8 of the students are boys. How many girls are in the school?
2 answers:
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Answer:
Step-by-step explanation:
let denote grams of
formed in
mins.
For of
we have:
of A and
of B
Amounts of A,B remaining at any given time is expressed as:
of A and
of B
Rate at which C is formed satisfies:
Apply the initial condition, ,to the expression above
Now at :
Substitute in X(t) to get