A bag contains 70 pencils out of which 15 are green and 30 are blue. How many pencils of other colour are in the bag. A pencil is selected from a bag at random .What is the probability that it is blue?

Answers

Answer 1

Answer:

a) There are 25 pencils of other colour in the bag.

b) P(Blue) = 3/7

Step-by-step explanation:

A bag contains 70 pencils out of which 15 are green and 30 are blue.

a) How many pencils of other colour are in the bag?

This is calculated as:

70 - (15 + 30)

= 70 - 45

= 25 pencils

Hence, there are 25 pencils of other colour in the bag.

b) A pencil is selected from a bag at random .What is the probability that it is blue?

P(Blue) = Number of Blue pencils/Total number of Pencils

P(Blue) = 30/70

P(Blue) = 3/7


Related Questions

Write an equation in Slope intercept form of the line that passes through the given points (-3,4) (1,4)

Answers

answer would be “y=4”

to find the answer: first you have to find the slope with the given points. (y2 - y1 / x2 - x1)

plug it in to get: (4-4 / 1- -3) = 0/4 = 0

this means the slope would be 0

if the y intercepts are the same then it usually indicates that the slope would be 0 and that the answer is the y intercept.. but if you don’t understand how to get slope-intercept using other coordinates then here’s how:

you can use point-slope formula (y-y1 = m (x-x1) in order to do this just plug in one of the coordinates. in this case an example of point-slope form would be:
y-4 = 0 (x - -3) or y-4 = 0(x-1)

it doesn’t matter which coordinates you use..

then solve the point slope for slope-intercept.

y-4 = 0(x-3) multiply 0 with x and -3
y-4 = 0x move -4 to the right by adding 4

y = 0x + 4 or y = 4 would be your answer!

The equation for the line that passes through the point A ( -3 , 4 ) and

B ( 1 , 4 ) is y = 4

What is an Equation of a line?

The equation of a line is expressed as y = mx + b where m is the slope and b is the y-intercept

And y - y₁ = m ( x - x₁ )

y = y-coordinate of second point

y₁ = y-coordinate of point one

m = slope

x = x-coordinate of second point

x₁ = x-coordinate of point one

The slope m = ( y₂ - y₁ ) / ( x₂ - x₁ )

Given data ,

Let the first point be A ( x₁ , y₁ ) = A ( -3 , 4 )

Let the second point be B ( x₂ , y₂ ) = B ( 1 , 4 )

Now ,

The equation for the line is given by

y - y₁ = m ( x - x₁ )

To find the slope of the line ,

Slope m = ( y₂ - y₁ ) / ( x₂ - x₁ )

Substituting the values , we get

m = ( 4 - 4 ) / 1 - ( - 3 )

m = 0

So , the slope of the line is 0

Now ,

The equation of line will be

y - 4 = 0 ( x - ( -3 ) )

y - 4 = 0

Adding 4 on both sides , we get

y = 4

So , the equation of the line is y = 4

To learn more about equation of line click :

https://brainly.com/question/14200719

#SPJ5

SHOW YOUR WORK. 44.22 divided by (-6.7) and -6.46 divided by 0.04​

Answers

Answer: -6.6 and -161.5

Step-by-step explanation: 44.22/-6.7=-6.7 -6.46/.04=-161.5 <——- not to sure about that one

PLEASEE HELP AND SHOW WORK​

Answers

Answer:

x = 44°

Step-by-step explanation:

2x - 6 = 82

2x = 82 +6

2x = 88

divide through by 2

x = 44°

similar triangle

You borrow $7,000 from the Overton Credit Union to buy a used car. The credit union charges 6% interest, compounded monthly for 5 years. What’s the total amount you will have to pay back for this loan?

A= P(1+r/n) ^nt
A=Total amount after
P=Initial
r=percent rate as a decimal
n=number of times per year
t=time in years
O $7,431.74
O $9,441.95
O $9,367.58
O $9,380.67

Answers

Answer: 9441.95

P=7000
r=0.06
m=12
t=5
n=12(5)=60
Substitute into formula

please help with solving this

Answers

Answer:

x=-7

Step-by-step explanation:

5x-2x+1=3x-6-x first combine like terms

3x+1=2x-6     combine like terms by subtracting 2x from both sides

x+1=-6           subtract 1 from both sides

x=-7

Ms. Hills went to the store with $70. She bought three notebooks for $5 each and is buying a certain number of calculators for $25 each. Which of the following inequalities could be used to calculate the number of calculators she can buy?

Answers

Answer:

70= (5x3)+(25x) or 70> (5x3)+(25x)

Step-by-step explanation:

GIVE ME BRAINLIEST???? THIS TOOK A WHILE :(

(8th grade)Use the elimination method to solve the system.
4x+6y=10
2x+5y=1

Answers

Point form: (11/2, -2)
Equation form: x=11/2 y= -2

4x+6y=10

-

2x+5y=1

= 2x+y=9

2x=9-y       -1

9-y+5y=1    ( using 1)

4y=1-9

y=-8/4

y=-2

2x=9-(-2)

2x=11

x=11/2

please help me I really need it and no silly answer please ​

Answers

Answer:

1/4

Step-by-step explanation:

That is because [tex]\frac{1}{4}x=y[/tex]. One each line, you would divide y by x to get the constant, which is 1/4.

Choose the expression that is equal to 28.3. A. 33 + 27.2 – 6.8 + 24 – 3.1 B. 33 + 27.2 – (6.8 + 24 – 3.1) C. [33 + (27.2 – 6.8)] + 24 – 3.1 D. 33 + 27.2 – (6.8 + 24) – 3.1​

Answers

i think it’s maybe D ?

Can someone help me out please!!

Answers

x =56 y =90

Step-by-step explanation:

hxjxskalskdhxgxh

what they said ahhdneoeicirnwnuwhenekeicifv

Sindhu’s present age is thrice of Shilpa. If Shilpa’s age three years ago was x, then Sindhu’s present age is
3 (x – 3)
3x + 3
3x – 9
3(x + 3)

Answers

Answer:

I think "D"- 3(x + 3)

Step-by-step explanation:

as  3 years ago - x

so present age of shilpa  - x +3

~~~~~~~~~~~~~

present age  of sindhu - 3 (x+3)

i guess : )

Shilpa's age three years ago

Shilpa's age now = x + 3

Sindhu's age now = 3(x + 3)

which expression is equivalent to the given expression? 2x^2-14x+24

A.) 2(x-3)(x-4)
B.) 2(x-5)(x-2)
C.)(2x-12)(x-2)
D.)2(x-8)(x+3)​

Answers

A. Just gotta simplify it

Answer:

2(x-3)(x-4)

Step-by-step explanation:

i believe thats the answer

what is the simplified form of the expression
[tex] \sqrt{ - 64} [/tex]

Answers

I believe the answer will be 8i
It might be -8 I tried it on a calculator and it said that 64 was 8 but a negative should be the same so it’s either 8 or -8

pls help with algebra 1 hmk!!

Answers

the answer is B. because it’s 1 long line, it is “and”; if it were two separate lines, it would be “or”

The Gonzalez's updated their bedroom by purchasing a new lamp for $89.95 and a comforter set for $239.99. They paid 6.5% sales tax on their purchases. If the Gonzalez's paid $351.72 total, determine if they paid the correct amount.

Answers

Answer:

Not exactly

Step-by-step explanation:

Cost lamp = $89.95Cost of comforter set = $239.99Sales tax = 6.5%

Total payment:

($89.95 + $239.99)*1.065 = $351.39

Total amount is a little different:

$351.72 vs $351.39

The bike store marks up the wholesale cost of all of the bikes they sell by 30%. Andre wants to buy a bike that has a retail price of $125. We need to find the wholesale (original) price of this bike. What percent of the wholesale (original) price is the retail price?

Answers

Answer:

Wholesale Price = $96.15Retail price percentage = 130%

Step-by-step explanation:

Wholesale price was marked up by 30% and became $125.

Assume wholesale price is x. Expression will be;

125 = x + (30% * x)

125 = 1.3x

x = 125/1.3

x = $96.15

Retail price percentage = 125/96.15

= 1.30

= 130%

10=h/2+8 solve, its for algebra 1

Answers

Answer:

Subtract 8 from both sides which lead it to 2=h/2, then multiply two for each side then it turns to 4=h

Simplify. 18m – 9v + 6v – 7m

Answers

Answer: The answer is 11m + -3v.

pls help me with this i will give brainliest to who answer both questions

Answers

Answer:

1st one: 50 cups

2nd one: 3.125 gallons

Step-by-step explanation:

Question 1:

2.5 cups per pitcher

20pitchers x 2.5cups = 50cups total

Question 2:

16 cups per gallon

50cups / 16cups = 3.125 gallons

Answer:

D 50

Step-by-step explanation:

B 34 gallons

About 1,500,000 bacteria are found in 1 milliliter of water of the coastal ocean. How many bacteria will be there in 100 milliliters of water?

Answers

Answer:

150000000

Step-by-step explanation:

Answer: E.  because i just took the test on plato  

write a linear equation from the points (-4,-13) and (3,1)

Answers

y+13=-12(x+4) is the answer

Does the order pair (1,8) satisfy the function y=3x+6 Yes,No

Answers

Answer:

yes it does

Step-by-step explanation:

Use inductive reasoning to predict the next number in the sequence.

7, 10, 13, 16, 19, ...

21
21

22
22

23
23

20

Answers

it’s 23 because i’m would think you count by 2s if that makes any sense

Hurry please
a rectangle is 6 times as long as it is wide. the perimeter is 140 cm. find the area of the rectangle. round to the nearest tenth if necessary.

Answers

Answer: [tex]w = 10[/tex]

Step-by-step explanation:

Our perimeter will be 140 cm and our width of the rectangle will be 6w. We will then divide 14w and 140 by 14 so we can get w by itself. Then, we will divide the perimeter by the width.

Step 1: Let 6w will be our length and let the perimeter be 140 cm.

[tex]6w, P = 140 cm[/tex]

Step 2: Perimeter means that you add up all the 4 sides of the rectangle.

[tex]P = 140 = w + w + 6w + 6w = 14w[/tex]

[tex]P = 140, 14w[/tex]

Step 3: Divide both sides 14 to get the single w variable.

[tex]\frac{140}{14} = \frac{14w}{14}[/tex]

Step 4: Simplify.

[tex]10 = w[/tex]

Step 5: Flip sides.

[tex]w = 10[/tex]

~I hope I helped you :)~

what is the answer of 1/3pi x r^2 / 4 x 2h?

PLEASE ANSWER FAST ILL MARKYOU AS A BRAINLIST

Answers

Answer:

1/3pi x r^2 / 4 x 2h

Step-by-step explanation:

Ummm I'm just clueless. :/

y=2x+3


when x is 0, y is


when x is 1, y is


when x is 2, y is

Answers

When x is 0, y is 3
When x is 1, y is 5
When x is 2, y is 7

Please help me with this

Answers

Answer:

The length= 16cm

The width= 6cm

The two long sides are 8cm both so 8 + 8 = 16

And the two short sides are 3cm both so 3 + 3 = 6

So your length should be 16cm and your width 6cm

I HOPE THIS HELPS! ∧   ∧

                              ⊂∵→ω←∵⊃


Find the circumference of a circle with a diameter of 20 centimeters. Round your answer to the nearest centimeter.
6 centimeters
126 centimeters
31 centimeters
0 63 centimeters

Answers

Answer:

63 centimeters

Step-by-step explanation:

What we know:

A cricle has a diameter of 20 cm.

To find circumference, use πd or 2πr.

3.14(10 * 2)

3.14(20)

62.8 cm, which rounds to 63 cm.

What is the value of g(-9) for the function g(x) = x2 - x?

Answers

Answer:

72

Step-by-step explanation:

Given the function;

g(x) = x^2 - x

We are to find g(-9)

g(-9) = (-9)² - 9

g(-9) = 81 - 9

g(-9) = 72

hence the value of g(-9) is 72

Kristopher has a coupon for $10 off any item at his favorite electronics shop. If he plans to use the coupon to purchase and item that costs $80, by what percentage will the price be decreased before tax?

Answers

Answer:

12.5%

Step-by-step explanation:

Kristopher has a coupon for $10 off any item at his favorite electronics shop. If he plans to use the coupon to purchase and item that costs $80, by what percentage will the price be decreased before tax?

The formula for Percentage Decrease =

Decrease in price/ Initial price × 100

Decrease in price = $10

Initial price = $80

Hence:

$10/$80 × 100

= 12.5%

Hence, the percentage the price will be decreased by before tax is 12.5%

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