What was the question for this implicit rationale, and corresponding answer?
Javier = 50 * 7 = 350 minutes. Sanda = 90 * 3 = 270 minutes. Total = 350 + 270 = 620 minutes. Together Javier and Sanda exercised for 620 minutes.
 The answer: 620

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
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The question: Javier exercised for 50 minutes every day for one week. Sanda exercised for 90 minutes on each of three days. How many minutes did Javier and Sanda exercise in total?