Mathematics High School

9. There are 45 marbles in a bag (black and white only). The ratio of white marbles to black marbles is 2:3.
How many of each are there?

Answers

Answer 1

18 white and 27 black

Step-by-step explanation:

add 2 + 3 to get 5

45 ÷ 5 = 9

since white is 2, multiply 9 by 2 to get 18

since black 3, multiply 9 by 3 to get 27

Related Questions

The formula A = lw gives the area A of a rectangle with length l and width w. What is the area in square feet of a United States flag with a length of 13 feet and a width of 6 feet.

The area is ___ square feet.

Answers

Answer:

78

Step-by-step explanation:

You just plug in 13 as the length and 6 as the width

Then you multiply and get the answer

117+x+24=180 find what x equals

Answers

Answer:

39

Step-by-step explanation:

The answer is 39.

-Since the total is 180, we have to add 117+24 which equals 141.
-Now we subtract 180 with 141 and that equals 39.

Pleaseee helppp answer correctly !!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!

Answers

Answer:

The perimeter is 56.6 ft

Step-by-step explanation:

  7.7 * 6 + 5.2 * 2

= 46.2 + 10.4

= 56.6 ft

f(x) = 2x - 2
Which graph represents the inverse of function f

Answers

Answer:

bottom left

Step-by-step explanation:

it has a slope of 2 and a y intercept of -2

Answer:it’s z

Step-by-step explanation:

Given that a = ( − 6 7 ) and b = ( − 1 − 3 ) . If a − b = ( x y ) , work out the values of x and y .

Answers

Answer:

x = -5 , y = 10

Step-by-step explanation:

As given ,

a = ( x₁ , y₁ ) = ( -6, 7)

b = ( x₂ , y₂ ) = (-1, -3)

For a -b = ( x₁ - x₂ , y₁ - y₂ )

            = ( -6 - (-1) , 7 - (-3) )

            = ( -6 + 1 , 7 + 3 )

            = ( -5 , 10 )

⇒ a - b = ( -5, 10 ) = ( x, y)

∴ we get

x = -5 , y = 10

Plants must break down the sugar in cells to obtain energy from the food that is produced. What is this
process called?
Respiration
Transpiration
Restoration
O Photosynthesis
Help

Answers

Answer:

Restoration I believe

I'm so sorry if I'm wrong

Step-by-step explanation:

Answer:

photosynthesis

Step-by-step explanation:

A large bag of popcorn contains 9 1/3 cups . A serving of popcorn is 2 2/3 cups how many servings are in a large bag of popcorn

Answers

Answer: 3 1/2

I hope this helps!

                                                                     

Answer:

3 1/2 servings

Step-by-step explanation:

9 1/3 / 2 2/3 = ?

28/3 / 8/3 = 84/24

reduce 84/24

3 1/2

PLEASE HELP ASAP ❤️

Answers

Answer:

c ////

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

[tex]x^2+6x-40=(x+10)(x-4)\\\\\frac{x-16}{(x+10)(x-4)}+\frac{1}{x+10} \\\frac{1}{x+10}*\frac{x-4}{x-4} \\\frac{x-4}{(x+10)(x-4)}+\frac{x-16}{(x+10)(x-4)} \\=\frac{2x-20}{(x+10)(x-4)}=\frac{2x-20}{x^2+6x-40}[/tex]

y varies directly as x, if y = 9, when x = -3, find x when y = -27

Answers

Answer:

9

Step-by-step explanation:

x Is -1/3 of y

-27x-1/3= 9

The value of x when y = -27 is 9.

y varies directly as x

Therefore,

y ∝ x

y = kx

where

k = constant of proportionality

Let's find k when y = 9 and x = -3

y = kx

9 = -3k

k = 9 / -3

k = -3

Let's find x when y = -27

y = kx

-27 = -3x

x = -27 / -3

x = 9

learn more on variation here: https://brainly.com/question/25391692?referrer=searchResults

Please please helppp answer correctly !!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!

Answers

Answer:

holy.... that's a lot of variables.

4t+2s+w+u+x+v

Function or not a function?

Answers

yo no se ok yo no se solamente qiero puntos

please help me
The measure of an exterior angle of a triangle is x. The measure of the adjacent interior angle is at least twice x. List three possible solutions for x.​

Answers

Answer:

x=60°

x=48°

x=21°

Step-by-step explanation:

Inequalities

The sum of the exterior and the interior angle of a triangle is 180°.

The measure of an exterior angle of a triangle is called x, thus the interior angle is 180-x.

This angle is said to be at least twice x, thus:

180 - x ≥ 2x

Adding x:

180 ≥ 3x

Dividing by 3:

60 ≥ x

Swapping the inequality:

x ≤ 60°

The measure of x must be less or equal to 60°.

Three possible solutions are:

x=60°

x=48°

x=21°

Drag and drop each equation to match the type of solution.

Answers

Answer:

B, A, C

Step-by-step explanation:

does anyone know how to solve this? :(

Answers

Answer:

i dont know but my Friends do

HELP MEEE PLSSSS PLSSS

Answers

Answer:

b

Step-by-step explanation:

Answer:

135°

Step-by-step explanation:

The total interior angle sum of a pentagon is 540°, so the remaining angle is 135°.

ARITHMETIC SEQUENCES
11. (16) An arithmetic sequence has a common
difference of 4 and the 3rd term is 6. What is the
7 th term?
A. 14
B. 22
C. 34
D. 18

Answers

..........The answer is B

Answer: B

Step-by-step explanation:

does anyone know how to do this by solving with substitution

Answers

Answer:

Step-by-step explanation:

Question 1

System of equations is,

y = -6x -------(1)

y = -4x - 2 ---------(2)

Substitute the value of y from equation (1) to equation (2)

-6x = -4x - 2

-6x + 4x = -2

-2x = -2

x = 1

From equation (1)

y = -6(1)

y = -6

Question (2)

System of equations is,

-y = x --------(1)

3x + 5y = 20 ---------(2)

Substitute the value of x from equation (1) to equation (2)

3(-y) + 5y = 20

-3y + 5y = 20

2y = 20

y = 10

From equation (1)

-y = x

x = -10

Question (3)

System of the equations is,

y = -2x - 7 --------(1)

9x - 10y = 12 ----------(2)

Substitute the value of y from equation (1) to equation (2)

9x - 10(-2x - 7) = 12

9x + 20x + 70 = 12

29x = 12 - 70

29x = -58

x = -2

From equation (1)

y = -2(-2) - 7

y = 4 - 7

y = -3

How do you write 2sin5cos5 as a single trigonomic ratio?

Answers

Answer:

ertyui

Step-by-step explanation:

What is the slope & y-intercept for
y= -2x - 5 ?

Answers

Answer:

Slope = 2, and y intercept = -5

Answer:

The overall equation for slope-intercept is

y = mx + b

M would equal slope

B would be equal y-intercept.

So, judging from both equations now,

-2 is slope, while y-intercept is -5

If you are confused on why the y-intercept is -5 I will answer it for you. Have a good day ^-^

how can you represent all of the solutions to systems of inequalities?​

Answers

Answer:A closed, or shaded, circle is used to represent the inequalities greater than or equal to (≥) or less than or equal to (≤) . The point is part of the solution. An open circle is used for greater than (>) or less than (<). The point is not part of the solution. Solving" systems of linear inequalities means "graphing each individual inequality, and then finding the overlaps of the various solutions". So I graph each inequality, and then find the overlapping portions of the solution regions.Step 1: Line up the equations so that the variables are lined up vertically. Step 2: Choose the easiest variable to eliminate and multiply both equations by different numbers so that the coefficients of that variable are the same. Step 3: Subtract the two equations. Step 4: Solve the one variable system.

Step-by-step explanation:

hope this helps have a great night ❤️❤️❤️

Expand 3(x+ 2.3)
Expand 1/3(9x-12)

Answers

Answer:

3x+6.9 and 3x-4

Step-by-step explanation:

since 3 x x is 3x and the sign in the bracket is addition you place it there then place 3 x 2.3

being 6.9.

1/3 x 9is 9/3 and 3 can multiply both sides to get 3/1 or 3 then bring the minus and 1/3 x 12 is 12/3 3 can multiply both sides to get 4/1 or 4

solve for x
(20 points)

Answers

Answer:

x=14

Step-by-step explanation:

Use the distributive property of multiplication to find 6×21

Hint: 21 = 1 + 20.

Answers

Answer:

126

Step-by-step explanation:

First multiply 6 by 1. This equals 6. Then, multiply 6 by 20 to get 120. 6+120=126.

Convert 96 ounces to pounds. 6 lb. 4 lb. 10 lb. 5 lb.

Answers

Answer:

6 pounds

Step-by-step explanation:

Friday night a pizza parlor sold 5 large pizzas and some medium pizzas the pizza parlor made a totle of 291 how many mediom pizas werer sold wright and eqacion

Answers

Answer: 24

Step-by-step explanation:

The other information regarding the question is that the Medium pizza cost $9 while the Large pizza cost $15.

The number of medium sized pizza that Wright sold will be represented by x.

(5 × $15) + ($9 × x) = $291

$75 + 9x = $291

9x = $291 - $75

9x = $216

x = $216/9

x = 24

He sold 24 medium pizza

can someone helpp with this

Answers

Answer:

the circumference is roughly 6.28

Step-by-step explanation:

the formula for circumference is C=2πr and radius is the diameter divided by 2 so there for the radius is 1.

20% of 60 ? PLS EXPLAIN

Answers

Answer:

20% of 60 is 12

Step-by-step explanation:

Mia invested $640 in an account paying an interest rate of 6.7% compounded continuously. Assuming no deposits or withdrawals are made, how long would it take, to the nearest year, for the value of the account to reach $940?

Answers

Answer:

t=6 years

Step-by-step explanation:

Find the area of a square with side lengths of 7/8 inch.

Answers

Answer:

A = s²

A = (7/8)²

A =49/64

A= 0.77inches

b/6=3 i can not figure this one out.

Answers

6 x 3= 18. So b= 18 because 18 divided by 6=3 :)
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