An ant starts at -2 on the number line and travels east (positive direction) for 4 units then turns around and heads west (negative direction) for five units. it then travels east again for six units and to the west again for seven units. how far, total, does the ant travel?

(-2)  +  (4)  +  (-5)  +  (6)  +  (-7)  =  -4

Total distance traveled:  (Start position)-(End position) = (-2)-(-4) = 2

The ant travels a total of 2 units from its starting position. But traveled 22 units overall.

Hoped this helped!

step-by-step explanation:

the original amount doesn't ''re just looking for the time it takes for 1/2 of the substance to we have

(1/2) =)     take the ln   of both sides

ln (1/2)   = )   and we can write

ln(1/2) = ) lne     and lne   = 1     so we have

ln(1/2) = -.1092t     divide both sides by -.1092

t = ln(1/2)/-.1092 = about 6.347 days = about 6.3 days (rounded)