There are 20 pens in a box. Eighteen (18) of the pens are black. The other 2 pens are red. What percentage of the pens are black?

Answers

Answer 1

Answer: 90%

Step-by-step explanation: All u gotta do is 18/20. You get .9 and u just add a 0 at the end


Related Questions

Solve by elimination:
2x + 4y = 34
x+4y = 27
A (7,-5)
B (6,6)
(7,5)
(5,7)

Answers

Answer:

(7,5)

Step-by-step explanation:

{2x + 4y = 34

{4y = 27 - x

2x + 27 - x = 34

x=7

4y = 27 - 7

y = 5 so the answer is ( 7,5)

(7,5) hope this helps

Need help rlly quick (3)

Answers

G(x) = -4

Have a great day!

Answer:

-2 negative

Step-by-step explanation:

so if x = 0 then forget it is there then do 2-4=negative 2

hope this helped

i will mark brainliest

Answers

the answer is 10c=80

anyone know the answer ?

Answers

Answer:

y ≥ -1x +2

Step-by-step explanation:

Find the value of the expression below when x= 3.

x2 + 5

Answers

Answer:

11

Step-by-step explanation:

x*2 + 5

Subtitute

3*2 + 5

6 + 5

11

Answer:

11

Step-by-step explanation:

x is 3

2x+5

2(3)+5

6+5

11

Find x if:
- B is between A & C;
-AB = x + 5;
-BC = 2(x-3); and
-AB ~= BC

Answers

Answer:

The value of x = 11

Step-by-step explanation:

Given

B is between A and C.AB = x+5BC = 2(x - 3)[tex]{\displaystyle {\overline {AB}[/tex] ≅ [tex]{\displaystyle {\overline {BC}[/tex]

Determining the value of x

As B is between A and C, so

[tex]{\displaystyle {\overline {AB}[/tex] ≅ [tex]{\displaystyle {\overline {BC}[/tex]

as

AB = x+5BC = 2(x - 3)

so

x + 5 = 2(x-3)

x+5 = 2x-6

2x-x = 5+6

x = 11

Therefore, the value of x = 11

The diffence between a number x and 13 is 18

Answers

18+ 13 gives you 31 so the difference between 13 and 31 is 18.

the answer is 31

the ratio of boys to girls in a class is3:2 there are 25 students in this class how many are girls how many are boys.

Answers

Answer:

Out of 25, the number of girls to boys is 15/10, which is equivalent to 3/2.

Step-by-step explanation:

Find the area of this parallelogram

Answers

Answer:

260cm

Step-by-step explanation:

20x13=260

solve the equation 11.9=-23.8x

Answers

Answer:

x = − 0.07983193

Step-by-step explanation:

Brad owns a successful corporation that has a substantial earnings and profits. During the year, the following payments were made by corporation

Answers

Answer:

That's great for Brad, wait are you talking about the Brad from clash royale? if so im impressed

Step-by-step explanation:

The function y= x2 - 10x+ 31 has a
value of

Answers

Answer:

y = 6 at x = 5

Step-by-step explanation:

It is assumed the question is about finding the minimum value as the given function has no maximum value, it is + ∞ as the coefficient of x² is positive

The minimum/maximum value of a quadratic function is the vertex, which is at:

x = -b/2a

For the given function y = x² -10x + 31, the vertex is:

x =  - (-10)/2*1 = 10/2 = 5

The value of y at this point is:

y = 5² - 10*5 + 31 = 25 - 50 + 31 = 6

The point is

(5, 6)

Marianna just completed her findings in her investigation of the importance
of sunlight in the growth of plants. She has to submit a report of no less than
4,900 words in 15 pages. She can only use two types of font for her report.
The normal font size allows 300 words per page while the smaller italic font
allows 350 words per page. What is the maximum number of pages in her
report that can be set using the normal font size?
Please I need help!!!!!

Answers

Answer:

17 pages

Step-by-step explanation:

if not that then 15 since it says "less than 4,900 words in 15 pages"

Planes A and B intersect.

Vertical plane B intersects horizontal plane A. Point W is on the line where the planes intersect. Vertical line m is on the left half of plane A. Horizontal line n intersects line m at point X and line k at point W. Line l is on the lower half of plane B with point Y.

Which describes the intersection of plane A and line m?

line k
line n
point X
point W

Answers

Answer:

Point x

Step-by-step explanation:

got it right on edge 2021

Answer:

c

Step-by-step explanation:

Help me please i really need it so i can relax this weekend

Answers

1. Recrystallization
2. Transpiration
3. Atmosphere
4. Evaporation
5. Gravity
6. Precipitation
7. Change of state

Hope you have a good weekend

PLS HELP ASAP THIS IS DUE IN 10 MINUTES

Answers

Answer:A number decreased by 40

Step-by-step explanation: I really don't feel like explaining this lol...

The system of equations y=-2x+3 and y=x is graohed. What is the solution to the system of equations

Answers

Answer:

The solution to this system of equations is y = 1, x = 1

Step-by-step explanation:

We know that...

(1) y = - 2x + 3

(2) y = x

Then we just substitute the value of x that we are given in equation (2).

And so we get....

y = -2x + 3

x = - 2x + 3

3x = 3

x = 1

From equation (2) we know that y = x, so since x equals 1 y is also 1. There for the solution to this system of equations is (1,1)

To gather information on customer satisfaction, a researcher randomly selects four store locations and interviews all the customers at those selected stores. This sampling technique is called:

Answers

Answer:

This sampling technique is called cluster

Step-by-step explanation:

Samples may be classified as:

Convenient: Sample drawn from a conveniently available pool.

Random: Basically, put all the options into a hat and drawn some of them.

Systematic: Every kth element is taken. For example, you want to survey something on the street, you interview every 5th person, for example.

Cluster: Divides population into groups, called clusters, and each element in the cluster is surveyed.

Stratified: Also divides the population into groups. However, then only some elements of the group are surveyed.

In this question:

The population is divided into groups(by stores), and all elements of the groups(all customers at the stores are sampled), which is the characteristic of a cluster sampling.

In Game 1, Eli struck out 25 times in 75 times at bat.
In Game 2, he struck out 30 times in 100 times at bat.
In Game 3, he struck out 37 times in 120 times at bat.
struck out
'at bat
What proportion represents the percent of
strike outs per at bats?

Answers

Answer:

p = 31.19%

Step-by-step explanation:

Proportions and Percentages

A proportion is calculated as a division between two numbers. The result can be given as a decimal or as a percentage.

If we want to calculate the percent of a number N with respect to another number M, the formula is:

[tex]\displaystyle p=\frac{N}{M}*100\%[/tex]

Eli had some performances when playing baseball. Struck out 25 times in 75 times at bat, 30 times in 100 at-bats, and 37 times in 120 at-bats.

The total struck outs were: N= 25+30+37=92 and the total at-bats were: 75+100+120=295. The proportion of strikeout ber at-bats is:

[tex]\displaystyle p=\frac{92}{295}*100\%[/tex]

p = 31.19%

Cheryl is buying lace for her dance costume. One foot of lace costs 3 dollars. How much does each amount cost?

3/4 of a foot?

Answers

Answer:

3/4 of a foot will cost $2.25.

Step-by-step explanation:

This question is solved by rule of three, due to proportions.

One foot of lace costs 3 dollars. How much is 3/4 of a foot going to cost?

1 foot - 3 dollars

3/4 foot - x dollars

[tex]x = 3 \times \frac{3}{4} = \frac{9}{4} = 2.25[/tex]

So

3/4 of a foot will cost $2.25.

Pe nu cerc de central O se considera punctul ABC astfel incat punctele A B C sunt coliniare .Care este masura unghiului ACB

Answers

What is unghiului I think you misspelled it and I cannot read the last part

6) Steven receives $5.75 per hour and 3% commission on sales. One week he worked 40 hours and sold $2,500
worth of goods. How much did he earn that week?

Answers

Answer:

$230 for the hourly pay of 5.75×40 and $75 for the 2500x3% so total pay is $305.

Determine whether the relation is or is not a function.

Answers

Answer:

Not a function because it does not pass the Vertical Line Test.

for the given equation, enter the value of M when
x=3/2

x+2m=7/2

Answers

Answer:

Hope this helpsss plz vote brainliest

Step-by-step explanation:



mZJ and m M are base angles of isosceles trapezoid JKLM. If mZJ = 18x + 8 and m_M=11x + 15 find m2K.

K

L

M

Answers

The question is incomplete. Here is the complete question.

m∠J and m∠Kare base angles of an isosceles trapezoid JKLM.

If m∠J = 18x + 8, and m∠M = 11x + 15 , find m∠K.

A. 1

B. 154

C. 77

D. 26

Answer: B. m∠K = 154

Step-by-step explanation: Isosceles trapezoid is a parallelogram with two parallel sides, called Base, and two non-parallel sides that have the same measure.

Related to internal angles, angles of the base are equal and opposite angles are supplementary.

In trapezoid JKLM, m∠J and m∠M are base angles, so they are equal:

18x + 8 = 11x + 15

7x = 7

x = 1

Now, m∠K is opposite so, they are supplementary, which means their sum results in 180°:

m∠J = 18(1) + 8

m∠J = 26

m∠K + m∠J = 180

m∠K + 26 = 180

m∠K = 154

The angle m∠K is 154°

HELP PLEASE ITS DUE!!!! PLEASE I NEED HELPPPPPPP

Answers

Hey, so basically just plug in the x values for x in the equation. First table the first x value is -1 so just plug it in to 3x so: 3(-1)= -3. That’s your y.

A boy walks at a speed of 4 km/hr. How much time does he take to walk a distance of 20 km?

Answers

Answer:

It takes 5 hours

Step-by-step explanation:

Time=distance/speed/rate

Time=20km/4km/hr

Time= 5hours

write the equation of a line with the given two points in slope intercept form.
(5,1) (-3,2)
PLZ HELP!

Answers

Answer:

y = -⅛x + 1⅝

Step-by-step explanation:

Select the correct answer. What is the solution to this equation?
324=4(3)2x
a. x=8
b. x=4
c. x=2
d. x = 1

Answers

Answer

C. x=2

Step-by-step explanation:

This is due to 2(2) = 4

then 3^4=81

81*4=324

The solution to equation [tex]324=4(3)^{2x}[/tex] is x = 2.

What is exponential function?

An exponential function is a mathematical function of the following form:

[tex]f(x) = a^{x}[/tex]. where x is a variable, and a is a constant called the base of the function.

Given exponential equation

[tex]324=4(3)^{2x}[/tex]

[tex]4(3)^{2x}=324[/tex]

[tex]3^{2x} =\frac{324}{4}[/tex]

[tex]3^{2x}=81[/tex]

[tex]3^{2x}=3^{4}[/tex]

When bases are equal, power should be equal.

2x = 4

x = 2

Hence, the solution to equation [tex]324=4(3)^{2x}[/tex] is x = 2.

Option C is correct.

Find out more information about exponential function here

https://brainly.com/question/14355665

#SPJ3

300 students took a survey on a new recycling project. The percent of students who supported the recycling project was greater than 50% but less than 75%. How many students supported the recycling project? ​

Answers

Answer:76

Step-by-step explanation:

):!/

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