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From supply and demand to position and velocity, equations model the world around us. Equip yourself with the tools necessary to solve for x. See more

On a 2-day roadtrip, Janet drove \(210\) miles the first day, and \(S\) miles on the second day. She drove a total of \(570\) miles.

Which of the following mathematical statements expresses the above?

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For his exercise, James runs \(D\) miles every weekday, \(E\) miles on Saturday, and \(E\) miles on Sunday. He runs a total of 27 miles each week.

Which of the following mathematical statements represents the above?

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Alex and Bella have 24 sweets in total. Bella has 6 sweets more than Alex.

If \(A\) represents Alex's sweets, which of the following statements represents the above relationship?

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John is 3 years older than Mary, and Mary is 9 years older than Zack.

Which of the following statements represents their age?

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Elle's cellphone was fully charged when she got a call from her friend. She used \(x\)% of the battery while she was on the phone, and her cellphone is 87% charged now.

Which of the following mathematical statements describes the above?

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