in a survey, 9 out of 15 studets named math as their favorite class. Express this rate as a decimal!I am so confused!

Answer is 0.6:

Step-by-step explanation:

9 divided by 3 is 3

15 divided by 3 is 5

3 divided by 5 is 0.6

You can also think of it as 3 cut into 5 pieces and each piece is 0.6.

coin flip

non-answer:

choosing

sorry if this isnt what you're looking for i dont really understand the question

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)