Mr. and mrs. patton and their daughter carolyn own three cars. carolyn drives 10 miles per week farther with her car than her father does with his. mr. patton does twice as many miles per week as mrs. patton. if their total mileage per week is 160 miles, how many miles per week does each drive?

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)

i will pick c put check it over to be sure

step-by-step explanation: