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
Kryger [21]
3 years ago
5

Suppose that 20° of boys opted for mathematics and 40% of girls opted for mathematics. What is the probability that a student op

ted for mathematics if half of the class is girls?​
Mathematics
1 answer:
ankoles [38]3 years ago
5 0

Answer: 30%

Step-by-step explanation:

Let A be the probability of a student opting for mathematics - it consists of either boy opting for mathematics or girl opting for mathematics. As there is "or" we need to sum these probabilities.

P(A) = P(B)* P(M|G) + P(G)*P(M|G)

P(A) = \frac{1}{2} * \frac{20}{100} + \frac{1}{2} * \frac{40}{100}

P(A) = 3/10 = 0.3

=> 30%

You might be interested in
Jennie has 177 more songs downloaded on her mp3 player than Diamond. Together, they have 895 songs downloaded. What system of eq
mr_godi [17]
With the information given, we can set up the following system of equations:

x + y = 895
x - y = 177

x represents how many songs Jennie has, and y represents how many songs Diamond has.

6 0
3 years ago
Read 2 more answers
Can somebody help me with this please
Hitman42 [59]
Eleven is the sum. Add end is 7 and the ones is 4
3 0
3 years ago
Read 2 more answers
Linear function g is shown in the graph. Write the slope-intercept form of the equation representing this function.
jenyasd209 [6]

Answer:

y = -2x + 1

Step-by-step explanation:

First, find the slope with rise/run (y2 - y1) / (x2 - x1)

We can use the points (-1, 3) and (0, 1)

Plug in the points:

(1 - 3) / (0 + 1)

-2/1

= -2

The y-intercept is (0, 1) because that is the point where the line intercepts the y axis. So, we can plug in the slope and y-intercept into the equation:

y = mx + b

y = -2x + 1

8 0
3 years ago
Read 2 more answers
I’m being timed help!!!!!!!!!!!!!!
Evgen [1.6K]

Answer: light blue

Step-by-step explanation: Ax + By = C

7 0
3 years ago
Read 2 more answers
Imagine that you are given two linear equations in slope-intercept form. You
valkas [14]

Answer:

A. 0

Step-by-step explanation:

If the slopes are the same but the y-intercepts are different, I can assume that the functions are parallel to each other. For this reason, they will never intercept.

4 0
3 years ago
Read 2 more answers
Other questions:
  • Given points A (-5, 6) and B (7, -1), find: Distance, Midpoint, and Slope
    15·1 answer
  • What is the pi of S=(Πr^2)+(2Πr)h
    5·1 answer
  • I need help!!! Brainliest for first (correct) answer!
    9·1 answer
  • 55 is the product of vidya's age and 5 <br> Use the variable v to represent vidya's age
    6·1 answer
  • 178.8 divided by 24 please help
    9·1 answer
  • G(r) = -5r+13<br> g(3)=_______<br> PLEASE HELP ME URGENT ASAPPPPP PLEASEEEE
    12·1 answer
  • HELP ME ASAP FOR BRANETEST I MEAN IT &gt;_
    13·1 answer
  • Help pls. cant figure it out.
    11·2 answers
  • Please help faster all these three correct yes or no answer only if you know or I will report you I would like an expert or abov
    9·1 answer
  • Complete the equation describing how x and y are related.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!