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Eric was rock climbing. At one point, he stopped and climbed straight down 2 1/2 meters. Then he climbed straight up 6 3/4 meters. Eric was wondering what his change in elevation was after these two moves.Which of the following equations matches the situation above?

Choice a: 2 1/2-6 3/4=?

Choice b: -2 1/2+6 3/4=?

Choice c: none of the above
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Respuesta :

debmc7

Answer:

Choice b

Step-by-step explanation:

He starts by going down, so that is descending, and would be a negative number. Then he is climbing, so that’s a positive number.

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