Philip ran 438 miles yesterday. Michael ran 158 miles yesterday. How much farther did Philip run than Michael?
A. 338 miles
B. 212 miles
C. 314 miles
D. 234 miles

Step-by-step explanation:

Distance ran by Philip=438 miles

Distance ran by Michael=158 miles

Distance Philip run farther than Michael=(Distance ran by Philip-Distance ran by Michael)

438 miles-138miles

=280miles

Hope it helps you

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)