you are running a fuel economy study one of the cars you find blue can travel 39 1/2 miles on 1 1/4 gallons of gasoline another cars red can travel 22 2/5 miles on 4/5 gallons of gasoline what is the unit rate for miles per gallon for each car which car can travel the greater distance from 1 gallon of gasoline

answer: what

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)

-4

step-by-step explanation:

do 6-10=

if u need it to be negative.