Since y must equal both 3x+2 and x-4, we deduce that 3x+2 and x-4 must equal each other. So, we have
The ratio of boys to girls in a school is 9:11. If there are 400 pupils in the school,how many boys are there
1 answer:
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Answer:
multiply either sides by 3:
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Answer: There are 20 students and 4 students are not here today.
Step-by-step explanation:
If the number of students = 4
Let the number of students be 'x'.
Fraction of students absent =
If the number of students = 5
Fraction of students absent =
And Jen came back,
So, the fraction of student absent is also written as
According to question, it becomes,
Hence, there are 20 students in our school.
And number of students are not here today is