Ireally need because my teacher gave this to me, and me, being really not smart, choose the time she was teaching to go to the bathroom, so i have no idea how to do this. , and brainliest goes to whoever explains how they go their answer. 34 points!

what is the equivalent expression to 9.48-3.4?

Step-by-step explanation just turn them into fractions and do it the same order in which the problem was put it so turn 9.48 into one and then 3.4 into one and then set them up like the problem was!!

answer: 2/4

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)