9. an object travels along a horizontal straight path at a constant rate. the object travels of the length
of the path in second. at that rate, how many seconds does it take the object to travel the entire
length of the path?

6 seconds

Step-by-step explanation:

let the entire length of path x

The object travels (1/8) of the length of the path (3/4) in second.

using the ratio and proportion to find the total time does it take the object to travel the entire length of the path as following

Length : time

1/8 x : 3/4 sec.

x : (total time)

using scissors metod

Total time = x * (3/4) / ( 1/8 x) = (3/4) / (1/8) = 6 seconds

b

step-by-step explanation:

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)