The average of sixteen numbers was 25. After an extra number was included, the new average was 30.
What was the 17th number?

i would say 25 since its mostly what people said but i don't know if im right

Step-by-step explanation:

110

Step-by-step explanation:

x/16=25

&

x/17=30

the total blue for the first scenario:

x=400

&

the total value for the second scenario

x=510

the difference between the two is 110

(400+110)/17=30

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)

answer: 270

step-by-step explanation:

you have to times 200 by 1.35 to get your answer