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
natka813 [3]
3 years ago
11

Katherine has 4 red pens, 6 blue pens, and 11 black pens in her book bag. If she randomly pulls out one pen, what is the probabi

lity that it will be black?
Mathematics
1 answer:
sashaice [31]3 years ago
6 0

Answer: 52.38%

Step-by-step explanation:

11 out of 21

11/21

.5238

52.38%

You might be interested in
Determine whether the relation is a function. Explain why or why not.
Oksi-84 [34.3K]

Answer: THE ANSER IS A. No, the domain value 5 corresponds to two range values, -8 and 5.

Find the domain and range.

Domain:

{ 6 ,  5  , 1 }

Range:

{ − 7 ,  − 8  , 4  , 5 }

Step-by-step explanation: IT'S NOT C OR D

Determine if the relation is a function.

The relation is not a function.

7 0
3 years ago
Simplify<br> Зе –6e + Зе – 4e =<br> How do you do it
Anvisha [2.4K]

Answer:

Let's simplify step-by-step.

3e−6e+3e−4e

=3e+−6e+3e+−4e

Combine Like Terms:

=3e+−6e+3e+−4e

=(3e+−6e+3e+−4e)

=−4e

Step-by-step explanation:

You are welcome

4 0
3 years ago
PLEASE ANSWER ASAP! MUST BE CORRECT! MORE POINTS GIVEN!!!
Tasya [4]
These are the two rules for when a and b are positive numbers.
a + b = b + a
a - b ≠ b -a
a - b = -b + a

For example:

5.71 + 2.84 = 2.84 + 5.71
8.55 = 8.55

5.71 - 2.84 ≠ 2.84 - 5.71
2.87 ≠ -2.87

5.71 - 2.84 = -2.84 + 5.71
2.87 = 2.87



These are the rules for when a and b are negative numbers.
a + b = b + a
a - b = b + a

For example,

-6.2 + (-3.96) = -3.96 + (-6.2)
-6.2 - 3.96 = -3.96 - 6.2
-10.16 = -10.16

-6.2 - (3.96) = -3.96 + (-6.2)
-10.16 = -10.16



Also, if a is a positive number, while b is a negative number, we see these rules:
a + b = a - b
a - b = a + b

For example,

5.71 + (-6.2) = 5.71 - 6.2
-0.49 = -0.49

5.71 - (-6.2) = 5.71 + 6.2
11.91 = 11.91


Also, if a is a negative number while b is a positive number, then these rules will apply:
a + b = b - a
a - b = -b - a

For example,

-3.96 + 2.84 = 2.84 - 3.96
-1.12 = <span>-1.12
</span>
-3.96 - 2.84 = -2.84 - 3.96
-6.8 = -6.8


I hope this helps! :)
4 0
3 years ago
find the equation of a line that is parallel to the straight line 2x-y=-3 and crosses the x-axis at x=-5​
Alecsey [184]

Answer:

y=2x+10

Step-by-step explanation:

In line equations its helpful to write your line in the form y = ax + b. This helps because a is always the gadient of the line and b is always the y intercept.

In this case it is y=2x+3

All parallel lines have the same gradient. The gradient of this line = 2.

If the line crosses the x axis at x=-5, then when x =-5 y = 0.

If you put all this in the form y =ax + b you get 0 = 2(-5) +b

So all you need to do to find b is rearrange. b = 10.

Therefore your line has gradient 2 and y intercept 10.

y = 2x + 10

7 0
3 years ago
The number of students who attended Lincoln Middle School last year was 860. This year, the attendance has increased to 1032 stu
Tju [1.3M]

Answer:

120 %.

Step-by-step explanation:

That is (1032 * 100) / 860 %

= 120 %

7 0
3 years ago
Other questions:
  • 8 less than 5 times a number
    12·1 answer
  • A wall is 15 ft. high and 10 ft. from a house.
    6·1 answer
  • Amy's math notebook weighs
    6·1 answer
  • Andre received $60 for his birthday and put it in his piggy bank. Each week, he puts 3 more dollars in his bank. The amount of m
    10·1 answer
  • Write 100 times 100 as multiplying 10 to a power by 10 to a power.
    5·1 answer
  • Please WHY WONT ANYONE HELP ME I BEG PLZZZZZZZ help due today i beg of u ......
    7·1 answer
  • What is 956,827 rounded to the nearest thousands
    6·1 answer
  • Simplify the expressioh 6.9-(-5)+4.1
    6·1 answer
  • Please help ASAP Thank you
    12·1 answer
  • Need the answer to this
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!