21. higher order thinking amil and abe
rode in a bike-a-thon. abe rode for 77 minutes
at a faster rate per mile than amil. find amil's
unit rate. then explain how you could use it to
find a possible unit rate for abe.
amil rode 15 miles
in 55 minutes.

i have no clue at all sorry

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)

answer: are you

step-by-step explanation: