Which of the following equations represents a line through the points (2,10) and (5,19)?
1 answer:
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If you look at the picture, you set it up as part over whole is equal to percent over 100. then you just multiply across.
Let,
- Number of boys be 3x
- Number of girls be 2x
- Then, Total number of students = 3x + 2x = 5x
It is given that,
➙ Number of girls = 420
Then,
➙ 2x = 420
➙ x = 420/2 = 210
No. of boys = 3x = 630
Then,
➙ Number of students = 5x
➙ Number of students = 5(210)
➙ Number of students = 1050
- ANSWER - 1050
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