Question 10 Answer & Explanation - SAT Algebra

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algebra

Machine A produces 100 widgets/hour. Machine B produces 150. How long to produce 1000 widgets together?

2.5

Correct Answer: B

Choice Choice B is the correct answer.

Combined Rate: $100 + 150 = 250$ widgets/hour.
Equation: $250t = 1000$
Divide by 250: $t = 4$

Choice Choice D is incorrect because calculation error.

Choice Choice C is incorrect because calculation error.

Choice Choice D is incorrect because calculation error.

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Linear Functions Set 32

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