Solve the simultaneous equations: 3a-2b=14 12a+9b=39
1 answer:
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Nia answered correct answers = 80% of the 40 questions
When we remove % sign from a number, we divide that number by 100
= of 40
=
Cancelling the two zeroes from numerator and denominator,
=
= 32.
Total correct answers answered by Nia = 32
This is number 8. the second person got number 9
Answer:
the m angle ABC is 19x+12
