After buying the supplies, you start painting the east wall. It takes you 96 minutes to put two coats of paint on that wall (not including a lunch break between the two coats). Your friend stops by to see how you are doing and comments that you are 25% finished with the painting. What is 25% of the entire project? Are they correct?

0.50

Step-by-step explanation:

After buying the supplies, you start painting the east wall. It takes you 96 minutes to put two coats of paint on that wall (not including a lunch break between the two coats). Your friend stops by to see how you are doing and comments that you are 25% finished with the painting. What is 25% of the entire project? Are they correct?

25% of 2 coats of paint

0.25 × 2

0.50

25% of the entire project is 0.50

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)