there are 400 pens in a shop 40percent are black 20percent of the other colored pens are blue and 10percent of other pens are yellow if the remaining are red what percent of pens are red

Answers

Answer 1
Percents is a number out of 100. So basically what you’re going to do here is add up the percents. 40+20+10. Add that up and you get 70. You then subtract 70 from 100. You get 30. So the percentage of red pens is 30%.

Related Questions

which function would have a range of all real numbers

Answers

Answer:3

3

Step-by-step explanation:

Find the values of x for which f(x) = g(x).
f(x) = x2 + 2x + 1,
g(x) = 5x + 19

Answers

The x value is -18, hope this helps :)

GEOMETRY HELP!!
What is the coordinate of the midpoint of segment QB?

Answers

Answer:

4

Step-by-step explanation:

8-4 is 4

Which statement is true regarding the functions on the graph?

Answers

You got it, both the x’s interest there

Mary is half of her sister's age. The sum of their
ages is 18. How old is her sister?

Answers

Answer:

Mary's sister is 12 years old.

Step-by-step explanation:

If Mary is half of her sister's age, her sister is 2 times her age.

Represent M as Mary's age...

M+2m=18

3m=18

3m/3=18/3

m=6

But because Mary is a half of her sister's age...

6*2=12

Answer:

12 years

Step-by-step explanation:

12/2 = 6

12 + 6 = 18

Select all sets in which the number -
is an element
A. rational numbers
B. integers
C. natural numbers
D. whole numbers
E. irrational numbers
Freal numbers

Answers

wowowoowowowowowowowow

A biologist monitors the growth of molds to better understand how they spread. She begins with a culture of 50 molds in a container that can hold 1,000 cultures. Which model represents this scenario?

Answers

Answer:

D. y = StartFraction 1,000 Over 1 + 19 e Superscript negative 0.6 t Baseline EndFraction

Step-by-step explanation:

edge 2020

DOES ANYONE KNOW THIS?????

Answers

Answer:

if i;m right its 45 degrees

Step-by-step explanation:

Answer:

28

Step-by-step explanation:

alternative angle theorem lets you know that angle acb is equal to cae and you can find acb since you know all angles add up to 180. 180-105-47=28

Solve4(a+4) - 2 = 34

Answers

Answer:

a = 5

Step-by-step explanation:

You have to isolate the variable by dividing each side by factors that don't contain a variable.

Answer  or  i can giv u the ansur if you want it

Step-by-step explanation:

a and Ly started sung money at the same time for Christmas gis erika started with $100 and added $35 a week. Uly saved $60 a week and
started with 25. How many weeks will it take for them to have the same amount of money saved for Christmas gifts?
weeks torna and Ly to have the same amount of money saved up

Answers

Answer:

Step-by-step explanation:

Erika: y = 35x + 100

Ly: y = 60x + 25

60x + 25 = 35x + 100

25x + 25 = 100

25x = 75

x= 3 weeks

Erika: y = $35(3) + 100= 105 + 100 = $205

Ly: 60(3) + 25 = 180 + 25 = $205

Please help please help

Answers

1. 9/44
2. 1/3
3. 1/14
4. 4/45
5. 7/12
6. 14/55
7. 5/12
8. 2/9
9. 1/16
10. 7/6
11. 5/12
12. 4/5
13. 6/7
14. 7/12
15. 1
16. 3/2
17. 15/8
18. 4/7

To ensure profits, a store is going to sell a sweater for 115 percent of the production cost. It costs $10 to make the sweater. Below are the calculations for finding the selling price. What mistake did the store owner make? (Original Cost)(Percent) = New Cost ($10)(0.115) = $1.15 The new cost is correct. The owner should have divided by 0.115. The owner should have multiplied by 11.5. The owner should have multiplied by 1.15.

Answers

Answer:I did the test and the answer is The owner should have multiplied by 1.15.

Step-by-step explanation:

Sample text

To make the calculation 115 percent of the production cost , the owner should have multiplied by 1.15 to the production cost.

What is percentage?

" Percentage is defined as the hundredth part of any given number".

According to the question,

Production cost of a sweater = $10

To ensure profit , selling price = 115 percent of the production cost

(Original Cost)(Percentage)

[tex]= (10)(\frac{115}{100} )[/tex]

[tex]= $11.5[/tex]

Hence, to make the calculation 115 percent of the production cost , the owner should have multiplied by 1.15 to the production cost.

Learn more about percentage here

https://brainly.com/question/13450942

#SPJ3


4 Apoint Q with coordinates of (8. 6) is reflected across they axis. What is the new
Coordinate


Answers

Answer:

8. -6

Step-by-step explanation:

How many minutes are there in a week, if a week has 7 days, each day has 24 hours and each hour has 60 minutes?​

Answers

Answer:

10,080 minutes

Step-by-step explanation:

7 x 24 x 60 = 10,080

please help very confused limited time!

Answers

slope-intercept form: y = mx + b

m = the slope and b = the y-intercept.

We know that the line passes through x-coordinate 1 and y-coordinate 1 and has a slope of 2

Let's plug our numbers into the slope-intercept form

1 = 2(1) + b

Simplify the right side

1 = 2 + b

Subtract 2 from both sides

-1 = b

The final answer: y = 2x - 1

the answer is A.) y=2x-1

substitute (1,1) in for y and x
1=2(1)+b
1=2+b
-1=b

What is the sum of the following? 16x+4x+9y=?

Answers

Answer: The answer would be 20x+9y

Step-by-step explanation: I need a brainliest please!!!

The formula for the surface area of a cylinder is 2\pi r(r+h)2πr(r+h)2, pi, r, left parenthesis, r, plus, h, right parenthesis where rrr is the radius of the cylinder's base and hhh is its height. A certain pole has a cylinder-like shape, where the base's radius is 101010 centimeters and the height is 222 meters. What calculation will give us the estimated surface area of the pole in square centimeters?

Answers

Answer:

2pi x 10 x 210

Step-by-step explanation:

The estimated surface area of the pole is 13194.68 square centimeters and this can be determined by using the given data.

Given :

The formula for the surface area of a cylinder is [tex]2\pi r(r+h)[/tex].A certain pole has a cylinder-like shape, where the base's radius is 10 centimeters and the height is 2 meters.

The following steps can be used in order to determine the surface area of the pole in square centimeters:

Step 1 - According to the given data, the surface area of a cylinder is [tex]2\pi r(r+h)[/tex].

Step 2 - Now, substitute the values of 'r' and 'h' in the expression of the area of the cylinder.

[tex]A = 2\pi\times 10\times (10+200)[/tex]

Step 3 - Simplify the above expression.

[tex]A = 2\pi\times 10\times (210)[/tex]

[tex]A = 13194.68\; {\rm cm^2}[/tex]

So, the estimated surface area of the pole is 13194.68 square centimeters.

For more information, refer to the link given below:

https://brainly.com/question/2264643

Equation: 2n +n/2=10

Answers

Answer:

5

Step-by-step explanation:


Jack is fishing on a pier that is 2 feet above the water. When he casts his rod, the hook
on his line lands 8 feet below water. What is the total distance his hook traveled?

Answers

Answer:

10 feet

Step-by-step explanation:

2 + |-8| = 10

Hope this helps, have a great day:)

ANSWER: 10 feet
Explanation: 2 + 8 = 10

This is what I need help with.

Answers

smallest to largest goes as follows
plant D
Plant B
Plant C
Plant A

what number cubed equals 2744

Answers

2744 is said to be a perfect cube because 14 x 14 x 14 is equal to 2744.

∠A and ∠ B ∠B are complementary angles. If m ∠ A = ( 2 x − 10 ) ∘ ∠A=(2x−10) ∘ and m ∠ B = ( x − 2 ) ∘ ∠B=(x−2) ∘ , then find the measure of ∠ A ∠A.

Answers

Answer:

Angle A = 58 degrees

Angle B = 32 degrees

Step-by-step explanation:

First of all, we will need to know that complementary angles are angles that sum up to 90 degrees.

This means that if we add the values of angle A and angle B, they will both sum up to 90 degrees.

i.e (2x-10) + (x-2) = 90

3x -12 = 90

3x = 102

x = 34 degrees

We can substitute this value of x into the equations for angles A and B

A = (2 X (34) - 10 ) = 58 degrees

B =  ( 34 - 2) = 32 degrees

Therefore, angles A and B are 54 and 32 degrees respectively.

Check: We can add the two angles to see if we get 90 degrees. 58 + 32 = 90 degrees. This shows that the two angles are complementary and our answer is correct.

It rained 0.84 inches on Saturday and 0.8 inches on Sunday. How much did it rain on Saturday and Sunday combined?

Answers

1.64 is the answer. My proof calculator

Answer:

1.64

Step-by-step explanation:

The first step to do is to line up the decimal points. We have to add a zero to 0.8 so that the decimal points will align (this does not change the value).

 0.84

+0.80

Then bring down the decimal point into the answer column, and add like normal.

 0.84

+0.80

  1.64

Hope this helps!

Please help, question is in photo below, about finding angles.AWARDING MORE POINTS

Answers

The measure of angle ABC = ABD + DBC = 95 degrees.

Let's plug our values from the picture into our equation above.

95 = 2x + 23 + 9x - 5

Combine like terms

95 = 11x + 18

Subtract 18 from both sides

77 = 11x

Divide both sides by 11

7 = x

Angle ABD = 2x + 23 = 2(7) + 23 = 14 + 23 = 37 degrees.

Angle DBC = 9x - 5 = 9(7) - 5 = 63 - 5 = 58 degrees.

A scientist is going to measure the amount of rain we get today. Look at the table and pick the best answer that describes it. X (hours) 2 6 00 y (rain) 02 6 9 12 a Nonlinear b Ос Nonproportional Proportional Rational Od INTL 2​

Answers

A scientist is going to measure the amount of rain we get today. Look at the table and pick the best answer that describes it. X (hours) 2 6 00 y (rain) 02 6 9 12 a Nonlinear b Ос Nonproportional Proportional Rational Od INTL 2​

is the product of two rational numbers always a rational number?

Answers

Answer:

Yes, it's always rational.

Step-by-step explanation:

The smallest number by which 28 should be
multiplied so as to get a perfect square is
O2
O 4
03
07​

Answers

Answer:

7

Step-by-step explanation:

28x7=196

196=14^2 aka a perfect square

can someone please help me

Answers

Answer:

i think the answer would be none.

Step-by-step explanation:

I’m pretty sure the answer on none, because if you plug the numbers onto the x or even try to solve it none of those numbers work

During the summer, the height of the water in the pool decreased by 5 inches each week due to evaporation. What is the change in the height of the water over an 8 week period?

Answers

Answer:

40 inches

Step-by-step explanation:

We know that the height of water in a pool decreased 5 inches per week.

This means that we can form the equation [tex]y=-5x[/tex], since the amount of water remaining is proportionate to the amount of weeks that have passed.

We know [tex]x=8[/tex], since we need to find the change for 8 weeks.

[tex]y = -5\cdot 8[/tex]

[tex]-5 \cdot 8 = -40[/tex]

[tex]y=-40[/tex]

The change will be the absolute value of -40, which just makes it positive, so 40.

Hope this helped!

Answer:

40 inches evaporated

Step-by-step explanation:

5 in / week

Multiply 5 in by 8 wks

= 40 inches of water evaporated over 8 wks

Help please picture attached

Answers

Answer:

-10

Step-by-step explanation:

3/5(b)=-6

Divide -6 by 3/5, you get -30/3.

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