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azamat
3 years ago
11

In Mr. Johnson’s classes, 30% of the students scored a 95 on a quiz. Let be the total number of students in Mr. Johnson’s classe

s. If 15 students scored a 95, write an equation involving that relates the number of students who scored a 95 to the total number of students in Mr. Johnson’s classes. i need to know this quick!! like by tomorow
Mathematics
1 answer:
STatiana [176]3 years ago
6 0

Answer:

15 students (30% of the students in class) scores a 95 on a quiz.

Therefore the total number of students (100% of the students) in class is:

N = 15 x 100/30 = 50 (students)

(This calculation is inferred from a ratio that 15/N = 30/100).

Denote the number of students who scored a 95 on a quiz is a, the total number of students in class is b.

Then the equation that related a and b is:

b = (100/30) x a

Hope this helps!

:)

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