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Sagot :
Answer: n+3 = 7 ; 24 students
Step-by-step explanation:
When n =4
a 2n=6
(2×4) = 6
8 = 6 (Wrong)
b n + 3=7
4 + 3= 7 (Right)
c 9-n=13
9 - 4 = 13
5 = 13 (Wrong)
d n 12 = 3 n over 12 i
(4×12) = (3×4)/12
48= 1 (Wrong)
In Ms perrons class 75 percent of students are boys and there are 18 boys in the class.
Let the total number of students in the class be y.
75% of y = 18
75/100 × y = 18
0.75 × y = 18
0.75y = 18
y = 18/0.75
= 24
There are 24 students in the class.
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