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
mash [69]
3 years ago
12

EASY MATH!PLEASE HELP ME! I NEED KELP!I WILL MARK BRAINLIEST THANK AND RATE TO THE BEST ANSWER!

Mathematics
1 answer:
nirvana33 [79]3 years ago
4 0

Answer:

500

Step-by-step explanation:

Let the unknown number be n.  Then 1.5n = 750, and n = 500.

750 is 150 percent of 500.

You might be interested in
Help meeeeeeeeeeeeeeeeeee
barxatty [35]

Answer:

Morgan

Step-by-step explanation:

you put both like this 24/80 and 50/80

3 0
3 years ago
Find the slope and y intercept of the line below <br><br>Y-9x=1/2
ANTONII [103]

Answer:

slope is 9 and the y-intercept is 1/2

Step-by-step explanation:

y - 9x = 1/2, then y = 9x + 1/2

therefore the slope is 9 and the y-intercept is 1/2

7 0
3 years ago
Translate the sentence into an equation. Twice the difference of a number and 4 is 9. Use the variable y for the unknown number.
gulaghasi [49]

Answer:

2x-4=9

Step-by-step explanation:

2x-4=9

2x=y

2x=13

6 0
3 years ago
Which equation is the correct translation of the following statement?
leonid [27]
<h3>hello!</h3>

Let the number be x.

subtract 4:-

x-4 (4 less)

this expression equals 9:-

x-4=9 (Option C)

<h3>note:-</h3>

Hope everything is clear; if you need any explanation/clarification, kindly let me know, and I will comment and/or edit my answer :)

8 0
2 years ago
A box contains 5 red and 5 blue marbles. Two marbles are withdrawn randomly. If they are the same color, then you win $1.10; if
topjm [15]

Answer:

a) The expected value is \frac{-1}{15}

b) The variance is  \frac{49}{45}

Step-by-step explanation:

We can assume that both marbles are withdrawn at the same time. We will define the probability as follows

#events of interest/total number of events.

We have 10 marbles in total. The number of different ways in which we can withdrawn 2 marbles out of 10 is \binom{10}{2}.

Consider the case in which we choose two of the same color. That is, out of 5, we pick 2. The different ways of choosing 2 out of 5 is \binom{5}{2}. Since we have 2 colors, we can either choose 2 of them blue or 2 of the red, so the total number of ways of choosing is just the double.

Consider the case in which we choose one of each color. Then, out of 5 we pick 1. So, the total number of ways in which we pick 1 of each color is \binom{5}{1}\cdot \binom{5}{1}. So, we define the following probabilities.

Probability of winning: \frac{2\binom{5}{2}}{\binom{10}{2}}= \frac{4}{9}

Probability of losing \frac{(\binom{5}{1})^2}{\binom{10}{2}}\frac{5}{9}

Let X be the expected value of the amount you can win. Then,

E(X) = 1.10*probability of winning - 1 probability of losing =1.10\cdot  \frac{4}{9}-\frac{5}{9}=\frac{-1}{15}

Consider the expected value of the square of the amount you can win, Then

E(X^2) = (1.10^2)*probability of winning + probability of losing =1.10^2\cdot  \frac{4}{9}+\frac{5}{9}=\frac{82}{75}

We will use the following formula

Var(X) = E(X^2)-E(X)^2

Thus

Var(X) = \frac{82}{75}-(\frac{-1}{15})^2 = \frac{49}{45}

7 0
3 years ago
Other questions:
  • The perimeter of a rectangle is P=2(l+w), where P is perimeter, l is length, and w is width. If P=36 feet and the l=16 feet, fin
    14·1 answer
  • Find and round to the nearest cent. 35% of $246.55
    10·1 answer
  • Thomas has a vegetable garden. During the summer he grew 582 vegetables.
    13·1 answer
  • Visitors enter the museum through an enormous glass entryway in the shape of a tetrahedron. The figure shows the dimensions of t
    5·1 answer
  • Complete the problem.Then white an equation to solve it. Jake has 6 toy trucks. Some are big. 2 are small.
    11·2 answers
  • Roddy adjusts his simulation, making it easier and easier to win. Eventually, he finds that if the random numbers are between 1
    12·1 answer
  • What is the diameter of the cone?
    5·1 answer
  • LOOK AT THE PICTURE or click on the file
    8·1 answer
  • The ratio of the number of boys to the number of girls in orchestra is 3 to 2. There are 40 girls in the orchestra, how many boy
    11·1 answer
  • A 6 character computer password is made up off 4 numbers followed by 2 letters. How many different passwords are possible?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!