Influenza

For the first week of February, by influenza, 5% of children were in kindergarten. In the second week ill, nine next children, bringing the number of patients increased to 20%. How many children went to kindergarten?

Correct answer:

n =  60

Step-by-step explanation:

q1=5%=1005=201=0.05 q2=20%=10020=51=0.2  q1 n+9=q2 n 0.05 n+9=0.2 n  0.15n=9  n=0.159=60  n=60



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