If A = 5B and B = 2C, which expression represents A in terms of C?

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Master the Certify Teacher EC-6 (391) Mathematics Test. Use flashcards and multiple choice questions with explanations. Boost your confidence and excel in your exam!

Multiple Choice

If A = 5B and B = 2C, which expression represents A in terms of C?

Explanation:
Think of it as replacing B with what it equals in terms of C. A is five times B, and B is two times C, so substitute B = 2C into A = 5B: A = 5 × (2C) = 10C. So A in terms of C is 10C—the coefficients multiply (5 and 2) and the variable becomes C.

Think of it as replacing B with what it equals in terms of C. A is five times B, and B is two times C, so substitute B = 2C into A = 5B: A = 5 × (2C) = 10C. So A in terms of C is 10C—the coefficients multiply (5 and 2) and the variable becomes C.

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