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
vlabodo [156]
3 years ago
12

The average mark scores by 29 students in a science test was 56%. Jessica was sick, so she sat the

Mathematics
1 answer:
alisha [4.7K]3 years ago
4 0

Answer:

56.5%

\frac{29 \times 56 + 71}{30 \times 100}  = 0.565 = 56.5\%

You might be interested in
An urn contains 2 red marbles and 3 blue marbles. 1. One person takes two marbles at random from the urn and does not replace th
Strike441 [17]
<h2>Answer with explanation:</h2>

Given : An urn contains 2 red marbles and 3 blue marbles.

Total marbles = 2+3=5

a) The general ways in which the person could get a red marble and a blue marble are :

1)  He draws red marble first and then second marble as blue.

2)  He draws blue marble first marble and then second marble as red.

b)  The number of ways to get one red and one blue marble is given by :-

^2C_1\times^3C_1=2\times3=6                          (i)

c) Number of ways to get 2 marbles from 5 is given by :-

^5C_2=\dfrac{5!}{2!(5-2)!}=\dfrac{5\times4\times3!}{3!\times2}=10     (ii)

Now, The probability the person gets a red and a blue marble will be :-

P(R\ \&B)=\dfrac{6}{10}=0.6       [Divide (i) by (ii)]

Hence, the  probability the person gets a red and a blue marble= 0.6

5 0
4 years ago
Plz help...<br><br>I’m offering 10 pts
madam [21]

Answer:

B._________________________

6 0
3 years ago
Write an expression for 327 fewer than the product of 120 and p.
ValentinkaMS [17]

good morning,

Answer

327 ≤ 120×p

:)

3 0
3 years ago
What is the amplitude of y = 4sin3x?<br><br> 1/2<br> 2<br> 3<br> 4
liubo4ka [24]

The most generic sine function you can write is

y = A\sin(\omega x + \phi) + k

Of all these constant, A affects the amplitude, \omega affects the wave length, \phi and k cause horizontal/vertical translation.

In your case, A = 4,\quad \omega = 3,\quad \phi = k = 0

And we are interested in the amplitude, so we focus on A = 4

The amplitude of the standard sine function is 1, so when you multiply by A, the new amplitude is A itself. In our case A = 4, so the amplitude is 4.

5 0
3 years ago
Buna ,ma puteti ajuta
Ksenya-84 [330]
Cu ce să va ajut?????
5 0
3 years ago
Other questions:
  • Find the length of the leg. If your answer is not an integer, leave it in simplest radical form. answer asap pls
    10·2 answers
  • Consider the accompanying data on breaking load (kg/25mm width) for various fabrics in both an unabraded condition and an abrade
    7·1 answer
  • What is 3/4 of a right angle
    14·1 answer
  • Four multiplied by the some number equals 32
    11·1 answer
  • Helpppp with this plssss
    13·1 answer
  • An engineering consulting firm wanted to evaluate the diameter of rivet heads. The following data represent the diameters (in hu
    7·1 answer
  • √45 is the distance between which of the following complex numbers?
    13·1 answer
  • ( 2u + 8) + ( 15u + 7)
    12·2 answers
  • Which equation has the steepest graph?
    5·1 answer
  • Mcm de 2,5,10,25 grupo de valores
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!