Question

Eric was rock climbing. At one point, he stopped and climbed straight down 2 1/2 METERS

Answer 1

Answer:

CHOOSE B IF ThIS QUESTION POPS IN KHAN

Step-by-step explanation:

Answer 2

Answer:

$+4\frac{1}{4}$ meters

Step-by-step explanation:

Let's take climbing down as "negative" and climbing up as "positive". Now, we can simply use the numbers and signs to find the change in elevation.

• $2\frac{1}{2}$ meters down means $-2\frac{1}{2}$
• $6\frac{3}{4}$meters up means $+6\frac{3}{4}$

So, now we have:  $-2\frac{1}{2}+6\frac{3}{4}\\=-\frac{5}{2}+\frac{27}{4}\\=\frac{-5(2)+27}{4}\\=\frac{-10+27}{4}\\=\frac{17}{4}=4\frac{1}{4}$

Eric's elevation changed  $4\frac{1}{4}$ meters above. So after the 2 moves, he is up by  $4\frac{1}{4}$ meters.