2 years ago

Jon goes to a flea market and sells comic books for 3 dollars each. He starts the night with 20 dollars in

1 answer:

Rudiy272 years ago

5 0

So what you have to do to figure this out is 47-20 to get 27, then take 27 and divide it by 3 to get the answer of 9 comic books were sold by John.

You might be interested in

A psychological researcher did a study with a sample of 84 boys and found that the meam length of time that they remained engage

Varvara68 [4.7K]

Sample size= n= 84
sample mean= x = 107 s
population standard deviation =σ= 11.7

As, population standard deviation is given so we use the estimate:
x(+/-) z(α/2)(σ/√n)

At 99% Confidence interval means significance level is α=1-0.99= 0.01
So,
α/2=0.005
Now, z at α/2=0.005
z= 2.576
Now, by putting values
107(+/-)((2.576)(11.7/√84))
( 107-((2.576)(11.7/√84)), 107+((2.576)(11.7/√84)) )
(103.7, 110.288)

4 0

3 years ago

Amber's bank statement shows a closing balance of $224.13. There are no outstanding checks deposits. Her checkbook shows a balan

Lina20 [59]

Interest earned in the amount of $2.75

4 0

3 years ago

Read 2 more answers

Find the LCM of these numbers: 18, 27

Nastasia [14]

The answer is 54 hope this helps

4 0