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
horsena [70]
3 years ago
15

A math teacher gave her students two tests. On the first test, 80% of the class passed the test, but only 30% of the class passe

d both tests.
What is the probability that a student passes the second test, given that they passed the first one?
Mathematics
1 answer:
geniusboy [140]3 years ago
6 0

55% because you add 80% and 30% which is 110% and divide that by 2.

You might be interested in
Hiy im in kindergaten and i ned help on my homwwork wat is 5pluss7
inessss [21]

Step-by-step explanation:

5 + 7 = 12 \\

3 0
3 years ago
Read 2 more answers
Help me please I don’t understand this and it is due tonight
andreyandreev [35.5K]

Answer:

y = 5/3x + 31/3

=

5

3

x

+

31

3

Step-by-step explanation:

5 0
3 years ago
What is the distance of Point A (4-i) from the origin of the complex plane?
Dima020 [189]

Answer:

1st im not sure

.

.

.

.

.pls rate 5 stars

3 0
3 years ago
Fill in the blank with the correct response.<br><br> 11 ft = ____in.
Svetllana [295]

Answer:

132 inches

Step-by-step explanation:

We need to multiply both units together; there are 12 inches in a foot and 11 feet. Therefore:

11x12=132

132 inches

5 0
3 years ago
Read 2 more answers
What is the area of ruth's mural?
pentagon [3]

Answer:

Step-by-step explanation:

Comment

The shape consists of a rectangle on the bottom and a trapezoid on the top.

Rectangle

A rectangle has a very simple Area formula. It is Area = L*W. In this case the L = 14 m and is horizontal. The width is at right angles to the length and is marked as 3.

Area = L * w

L = 14

w = 3

Area = 14 * 3 =                            42 m^2

Trapezoid

The trapezoid is a bit more complicated and some things have to be found. First of all b1 is the first base of the trapezoid. It is parallel to and equal to  the Length of the rectangle. b2 is marked 10 meters. The height is just a bit more complicated. The total height of the figure is 8 m. You can't count the 3 m of the rectangle as part of the height because b1 comes only to the top of the rectangle. The height is 8 - 3 = 5

Area = 1/2(b1 + b2)*h/2

b1 = 14

b2 = 10

h = 8 - 3 = 5

Area = 1/2 ( 14 + 10) * 5 / 2

Area = 1/2 (24)*5

Area = 12 * 5

Area =                                      <u>    60 m^2</u>

Total Area                                  102 m^2

8 0
2 years ago
Other questions:
  • X:0,6=6:96 can you help me, please?
    7·1 answer
  • By what percent will the product of two numbers decrease if one of them is decreased by 25% and the other one is decreased by 50
    12·1 answer
  • What is the slope of a line is parallel to y=(1/2)x=3
    6·1 answer
  • Find the slope of the line
    11·2 answers
  • How might the lack of reliable transportation for getting to a job affect your decision to take it or not
    13·1 answer
  • For waht value of the variable is 'x' 3 times less than the 45-10x
    9·1 answer
  • Which statement is true? 1, A strong association implies a positive correlation. 2, A Positive correlation implies a strong asso
    12·1 answer
  • 21/5 + 4/3 - 1/2 <br>what is the answer​
    12·1 answer
  • Can someone help me solve for x
    15·1 answer
  • Which of the following is a perfect square trinomial?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!