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
Irina18 [472]
3 years ago
9

1. How many students have read more than 10 books

Mathematics
2 answers:
ZanzabumX [31]3 years ago
7 0

Answer:

1-6

2-87.5%

Step-by-step explanation:

with number one, you would count everything above 10 books, because its asking for more than.

with 2, you count the 6 book number, and everything above that. then you find the total (14/16) and divide it like that.

QveST [7]3 years ago
3 0
1. Is 6
2.30% I believe
You might be interested in
Suppose the height of an 18 year old boy is normally distributed with mean 187cm fifteen percent of 18 year old boys have height
BARSIC [14]

Answer:

the probability that two 18 year old boys chosen at random will have heights greater than 185cm is 0.403

Step-by-step explanation:

P( x > 193) = 0.15

= 1- p(x less than or equal 193)

= 1 -p( z < (x- u) /sigma)

= 1- p( z< (193 - 187)/ sigma)

= 1- p( z< 6/ sigma)

P(z< 6/sigma) = 1 - 0.15

P(z < 6/sigma)= 0.85

6/sigma =1.036

Sigma= 6/1.036

Sigma= 5.79

P( x> 185) = 1- p( x< 185)

= 1- p (z < (185- 187)/5.79)

= 1- p( z< -0.345)

= 1- 0.365

= 0.635

P (x> 185) = 0.635 × 0.635

=0.403

3 0
3 years ago
Daryl has a total of 160 National Football League (NFL) trading cards from both the American Football Conference (AFC) and the N
Svet_ta [14]

Answer:

B

Step-by-step explanation:

Since A represents the number of AFC cars and N represents the number of NFC cards, and that Daryl has 160 total cards, then A+N = 160, the total number of cards. Furthermore, the number of AFC cards Daryl has is 8 more than 3 times the number of NFC cards, so A would be equal to 8 + 3N, or A = 3N + 8. The only system of equations with both of these correct equations is B.

4 0
3 years ago
Triangle ABC
Virty [35]

Answer:

15 cm

Step-by-step explanation:

Similar triangles are triangles which have the same shape but not the same size. This means their angle measures are equal but their side lengths are not instead they are proportional. To solve, we will set up a proportion and solve.

A proportion is two equal ratios set equal to each other. We form the ratios by finding corresponding sides (sides which match to each other on both triangles by their position). Out ratios will be one side of the small triangle over the corresponding side on the big triangle as shown below:

\frac{BC}{EF} =\frac{AC}{DF}.

\frac{18}{x}=\frac{12}{10}

To solve the proportion, we'll cross multiply by multiplying numerator with denominator across the equal sign.

\frac{18}{x}=\frac{12}{10}\\ 18*10 = x*12 \\ 180 = 12x \\ 15 = x

5 0
3 years ago
Which number belongs to the solution set of the equation below? 8x=120
vlabodo [156]
8x = 120
x = 120/8
x = 15
4 0
3 years ago
The length of a rectangle is 13 ft. And its width is 49 ft. What is its perimeter? 512 ft 427 ft 79 ft 159 ft
crimeas [40]

Answer:

  = 124 ft

Step-by-step explanation:

Perimeter of a rectangle is

P = 2(l+w)

We know the length is 13 and the width is 49

P = 2(13+49)

   =2(62)

   = 124 ft

7 0
3 years ago
Read 2 more answers
Other questions:
  • What is the slope of the line perpendicular to the line 4x-3y+12=0?
    8·1 answer
  • Factor completely: 16x2 + 40x + 25
    10·2 answers
  • Donna is making a blanket that is 5 feet long. How long is the blanket in inches?
    5·1 answer
  • Use the formula d = rt. Find t for r = 46.1 m/h and d = 253.55 m.
    13·2 answers
  • What is the discriminant of the quadratic equation 3-3x=-6x^2?<br> -68<br> -56<br> 76<br> 88
    15·1 answer
  • Convert the improper fraction to a whole or mixed number. (Enter your answer as a simplified mixed number.)
    13·1 answer
  • Please I need this now or I fail my test and I have to be held back!!! What is 4/15 divided by -3/5
    15·1 answer
  • Slope of -4 and goes through (-5,1)
    10·1 answer
  • Enter an algebraic equation for the sentence. Use x as your variable.
    12·1 answer
  • Determine whether the relation is a function.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!