Question

there are 23 boys and 35 girls on the school track and field team. After q boys and (q+4) girls graduate qt the end of the year, the probability of selecting a boy at random to represent the school for an event becomes 2/5. find the value of q

Answer 1

Answer:

q = 8

Step-by-step explanation:

$\frac{q}{q + q + 4} = \frac{2}{5} \\\frac{q}{2q + 4} = \frac{2}{5} \\\\4q + 8 = 5q\\q = 8$