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
Cerrena [4.2K]
3 years ago
9

There are 20 marbles in the box. 4 marbles are black, 6 marbles are blue, 10 are red. What is the probability of drawing a black

OR a red marble?
Mathematics
1 answer:
Nitella [24]3 years ago
4 0

Answer:

7/10 or 70% or 0.7

Step-by-step explanation:

4 black, 10 red

10+4=14

now you put it over the total marbles

14/20=7/10

i don't know how your teacher wants you to give the answer but it is 7/10 or 0.7 or 70%

You might be interested in
Is (1, 3) a solution to this system of equations?
andrezito [222]

Answer:

no

because it doesn't work with the first equation

5 0
3 years ago
Read 2 more answers
The options for the first one is left or right for the second one the options are mean or median and last ones are IQR or range
DedPeter [7]
With dot plot if it’s symmetrical its the mean and MAD, so i think that.
6 0
2 years ago
I really need help with this i beg you !!
sweet-ann [11.9K]

Answer:

The perimeter and area of the square are 56 units and 196 square units, respectively.

Step-by-step explanation:

The inner right triangle represents a 45-45-90 right triangle, which has the feature of a hypotenuse whose length is \sqrt{2} time the length of any of its legs. If the hypotenuse has a measure of 7\sqrt{2}, then the legs of the triangle have a measure of 7.

Now, we are aware that the side length of the square is twice the length of the leg of the right triangle. Then, side length of the square is 14 units long.

Lastly, we know from Geometry that the perimeter and area of the square are represented by the following expressions:

Perimeter

p = 4\cdot l (1)

Area

A = l^{2} (2)

Where l is the side length of the square.

If we know that l = 14, then the perimeter and area of the square are, respectively:

p = 4\cdot (14)

p = 56

A = 14^{2}

A = 196

The perimeter and area of the square are 56 units and 196 square units, respectively.

7 0
3 years ago
What is m∠LQK?<br><br> I have to attack the file
Olegator [25]
3n+(4n-15)=90

3n+4n-15=90

7n=105

n=105/7

n=15

---------------------

Angle LQK is 4n-15

If n=15

Angle LQK = 4(15) - 15

= 60 - 15

= 45
6 0
3 years ago
Read 2 more answers
A juggler throws a ball into the air from a height of 5 ft with an initial vertical velocity of 16 ft/s. The function that model
photoshop1234 [79]
1.25 seconds to catch the ball before it hits the ground :D hope i helped
5 0
3 years ago
Other questions:
  • Can someone please help me out?
    5·2 answers
  • An air traffic controller spots two airplanes at the same altitude converging to a point as they fly at right angles to each oth
    12·2 answers
  • You deposit $6500 into an account paying 8% annual interest compounded monthly. How much money will be in the account after 7 ye
    7·2 answers
  • Need help on this question
    12·1 answer
  • A bag contains 4 red, 5 blue, and 6 green marbles: ​One blue marble is selected and NOT replaced. If a 2nd marble is drawn, what
    9·2 answers
  • You created a blog and after 2 weeks you get your first subscriber. The number of subscribers grows quickly, quadrupling each we
    5·1 answer
  • If f(x) = x -5, what is f(2)
    9·1 answer
  • The local newspaper has letters to the editor from 40 people. If this number represents 2​% of all of the​ newspaper's readers,
    7·1 answer
  • What is 28% of 63%? Round your answer to the nearest tenth
    8·1 answer
  • Kevin cut a plank a yard long. He painted 1/3 yard of the plank in black. How much of the plank is unpainted?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!