There are 40 students in your class of which 23 are boys. What fraction of the students are girls?
2 answers:
Answer: 17/40 of the students are girls.
Step-by-step explanation:
First, to find the number of girls in the class, we can subtract the number of boys (23) from the total number of students (40) to get:
40 - 23 = 17
There are 17 girls in the class.
Finally, to get the fraction of the girl students of the class, we can divide the number of girls (17) by the total number of students (40) to get:
17 ÷ 40 =
Since the fraction is already simplified, the final answer comes out to be
.
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A line passes through (1,-2) and is perpendicular to .
To find:
The equation of that line.
Solution:
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Now, slope of required line is and it passes through (1,-2). So, the equation of line is
where, m is slope.
Therefore, the equation of required line is .