Question

An archeologist discovered two artifacts buried beneath the ground. She found the first artifact at an elevation of -8 2/7 meters and the second at an elevation of -35 4/7 meters. What is the distance between these two elevations?
-43 6/7 meters
-27 2/7 meters
27 2/7 meters
43 6/7 meters

Answer 1

@kaylie.sullivan can you help me with this problem please

Answer 2

They want the difference (subtraction) between those two mixed numbers

Answer 3

how?? -8 2/7 - (-35 4/7)= ???

Answer 4

Hint: Distance is also called absolute value.
And yes, that is correct.

Answer 5

mixed numbers are strange to work with i think, they are 2 numbers added together, maybe put them into improper fractions first, they are both already over the same denominator

Answer 6

But:
-a - (-b) = -a + b

Answer 7

now I understand!!! so the answer is 27 2/7???

Answer 8

c man..

Answer 9

the distance is a positive measurement

Answer 10

Thanks!!!!!

Answer 11

\[\sqrt{(a-b)^2}\] a-b is a squared quantity, always positive

Answer 12

welcome

Answer 13

\[\sqrt{(a-b) ^{2}} = |a-b|\]

Answer 14

yes