Which expressions have a value of 15 when s=15? A: s/3+10 B: 15,521÷s C: (3,015÷s)-186 D: 20s^2÷30 E: 2s^2/5-25

C. (3,015÷s)-186

Step-by-step explanation:

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for ex: the reciprocal of 3/4 is 4/3. it is the opposite.

reciprocal definition:

a mathematical expression or function so related to another that their product is one; the quantity obtained by dividing the number one by a given quantity.

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step-by-step explanation: