Football
Jonathan was playing football yesterday. Jonathan got hurt, started crying, and had to go to the doctor. The doctor said that the number of stitches Jonathan would get is equal to n . If n + 1 = , calculate 3n .
The answer is 105.
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1 solution
n + 1 = (n/7 + 1)²
= n²/49 + 2n/7 + 1
n² / 49 = n - (2n / 7) = 5n / 7
n² = 35n
0 = n² - 35n
= n(n - 35)
n = 0 OR n = 35
Answer = 3n = 105