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| Math Central | Quandaries & Queries |
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Question from austin, a student: i am a positive integer if im squared -5 is added to me. -10 is subtracted from me, and the remainder is divided by 2 the result is 7. what integer am i |
Hi Austin.
Try turning it into a mathematical statement:
| I am a positive integer | n |
| I'm squared | n2 |
| -5 is added to me | n2 +(-5) |
| -10 is subtracted from me | n2 +(-5)-(-10) |
| the remainder is divided by 2 | [ n2 +(-5)-(-10) ] / 2 |
| the result is 7. | [ n2 +(-5)-(-10) ] / 2 = 7. |
Solve for n.
Stephen La Rocque. >
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