1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Novay_Z [31]
3 years ago
8

One week a librarian kept track of whether returned books were returned on time or not, and whether they had fewer than 200 page

s or they had 200 pages or more. The results are shown in the table.
What is the probability that a randomly selected book returned that week was returned on time, given that it had 200 pages or more?




Returned on time

fewer than 200 pages—— 78

200 pages or more ——116



Returned late

Fewer than 200 pages ——-15
200 pages or more ——31
Mathematics
1 answer:
zhannawk [14.2K]3 years ago
6 0

In total, there were 147 books returned that week that had more than 200 pages. If 116 of those were returned on time, then 31 were returned late. This is about 79 percent of the 147 total. So, there is about a 79% chance that a randomly selected book with 200 pages or more was returned on time, or about 79/100.

You might be interested in
Pleeeeeasssseeee heeeelppp!! File is attached!!
rjkz [21]
3/10 -c
2/10-b
9/10- h
7/10-g
1/10-a
4 0
3 years ago
There are a few boxes with 12 red pens in each and a few boxes with 10 blue pens in each. If 10 red pens and 5 blue pens are rem
jolli1 [7]

Answer with explanation:

x=the number of boxes containing red pens and

y = the number of boxes containing blue pens.

The expression which describes the number of red pen and blue pen in Boxes is

 = (12 x-10)+(10 y-5)

The equivalent expression are

1.By Adding like terms

=12 x +1 0 y -10 -5

=12 x +1 0 y -15

or Using Associative Property of addition of three numbers which is

⇒a+(b+c)=(a+b)+c=(a+c)+b

= 10 y +12 x -15

or

= -15 +10 y +12 x

or

= 12 x -15 +10 y

3 0
3 years ago
Read 2 more answers
16.4 divide 0.8 what is the answer
fgiga [73]
20.5 is the answer, have a great day!
5 0
3 years ago
Read 2 more answers
How to u write 310,763,136
Ivahew [28]
<span>Three hundred ten million, seven hundred sixty-three thousand, one hundred thirty-six. </span>
3 0
3 years ago
Samuel's sister is 39. She is 6 years older than Samuel's age tripled. How old is Samuel?​
Thepotemich [5.8K]

Answer:

11

Step-by-step explanation:

39-6=33

33/3=11

4 0
3 years ago
Read 2 more answers
Other questions:
  • Regroup through thousands
    15·2 answers
  • What is the value of the expression? 2^0/4^2 A.0 B.1/16 C.1/8 D.1/2
    6·2 answers
  • Isabella is buying art supplies glass beads cost $0.28 per ounce paintbrushes, cost $0.95poster boards cost $0.75 and a jar of p
    10·1 answer
  • Where is the circumcenter in any given triangle?
    8·2 answers
  • What is the slope of this line?
    15·2 answers
  • Mr. Daly, a chemistry teacher needs 10 liters of a 20% saline solution for his afternoon class. Unfortunately, the only mixture
    14·1 answer
  • Please help!!! Find the distance CD rounded<br> to the nearest tenth.
    13·1 answer
  • A pattern maker uses 526 yards of muslin cloth each month. The cloth comes on bolts, or rolls, that hold 15 yards each.
    14·1 answer
  • The speed of sound is approximately 720 miles per hour at sea level. At this rate, how many feet does it travel in 20 seconds? U
    11·1 answer
  • 2. State two (2) values of θ (theta) to the nearest degree for<br> sin θ = − 0. 966
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!