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FrozenWasteland · 61-69, M
Nope, it's all good.
Let n = number of students, p = number passed, f = number failed.
Obviously n = p + f, right?
p = 35 (given)
f = 30% of n = 0.3 * n
so
n = 35 + 0.3 * n
n - 0.3 * n = 35
0.7 * n = 35
n = 35 / 0.7 = 50
Let n = number of students, p = number passed, f = number failed.
Obviously n = p + f, right?
p = 35 (given)
f = 30% of n = 0.3 * n
so
n = 35 + 0.3 * n
n - 0.3 * n = 35
0.7 * n = 35
n = 35 / 0.7 = 50
TheOneyouwerewarnedabout · 46-50, MVIP
OogieBoogie · F







