There is a bag with only red marbles and blue marbles. The probability of randomly choosing a red marble is 2 9 . There are 63 marbles in total in the bag and each is equally likely to be chosen. Work out how many red marbles there must be.

Answer:

2

Step-by-step explanation:

Answer:

3

Step-by-step explanation:

180-75

105

105-3

102

102/34

3

Answer:3

34x+3+75=180

34x=180-78

34x=102

x=102/34

x=3

Answer:

k=2

Step-by-step explanation:

(3/5k)-5=7/10k

we multiple both sides by 10k to get only one k

10k(3/5k)-5 = 7

(30k/5k)-5 =7 now we add 5 to other side and simplify our k fraction

6k= 12 divide by 6

k=2

Step-by-step explanation:

6785*7%=474.95

Hope this helps

Answer:

D

Step-by-step explanation:

To evaluate f(- 2) substitute x = - 2 into f(x), that is

f(- 2) = (- 2)² - (- 2)³ = 4 - (- 8) = 4 + 8 = 12 → D

Answer:

3 years old

Step-by-step explanation:

( 21 + 24 + 18 + 15 + 15 + x ) / 6 = 16

93 + x = 96

x = 3

The person who entered the room is 3 years old.

Answer:

3 years old

Step-by-step explanation:

x= age of the person who entered the room

The sum of 21,+ 24,+ 18,+ 15,+ 15 = 93

(93+x )     divided into 6 = 16

Multiply both sides by 6

93+x = 96

x=3

 93+3= 96

96/6 = 16

Answer:

y=2/3x+3

Step-by-step explanation:

First, you would use the point slope formula : y₂-y₁/x₂-x₁

(5--3)/(3--9)

=8/12

=2/3

Then you would plug it back into the equation along with one of the points. Ex:

-3=2/3(-9)+b

-3=-6+b

3=b

So in conclusion, the formula would come out to y=2/3x+3

Hope this helps! :)

Answer:

On Tuesday

591 burgers are sold.

Some are hamburgers and some are cheeseburgers.

59 fewer cheeseburgers sold than hamburgers.

Number of cheeseburgers --> x

Number of hamburgers --> y

x+y= 591 --> x = 591-y

x = y-59

so

591-y = y-59

-2y = -650

y = 325

so

x = 325-59

x =266

The hamburger shop sold a combined total of 591 hamburgers and cheeseburgers on Tuesday.

Let's represent the number of hamburgers sold as "H" and the number of cheeseburgers sold as "C." From the information given, we have two equations:

1. H + C = 591 (The combined total of hamburgers and cheeseburgers sold on Tuesday was 591).

2. C = H - 59 (There were 59 fewer cheeseburgers sold than hamburgers).

Now, we can use substitution to solve for the number of hamburgers: Substitute the value of C from the second equation into the first equation:

H + (H - 59) = 591

Now, combine like terms:

2H - 59 = 591

Next, isolate the term with H:

2H = 591 + 59

2H = 650

Now, solve for H:

H = 650 / 2

H = 325

So, they sold 325 hamburgers on Tuesday. To find the number of cheeseburgers sold, use the second equation:

C = H - 59

C = 325 - 59

C = 266

They sold 266 cheeseburgers on Tuesday. To find the total sales, add the number of hamburgers and cheeseburgers: Total sales = 325 (hamburgers) + 266 (cheeseburgers) = 591.

To know more about combined total:

https://brainly.com/question/31657570

#SPJ2

Answer:

Service B

Step-by-step explanation:

Beacuse it is taking less money

Answer:

No

Step-by-step explanation:

-2 is a larger number than -5, if you were to plot these two numbers on a number line, -5 would be further to the left of 0 than -2, which makes it a smaller number. The sign < means less than. The statement being made is that -2 is less than -5, which is false.

Answer:

no

Step-by-step explanation:

I took a test and this question was on it and the answer was no.

Answer: 1 and 4

Step-by-step explanation: just did it

Answer:

1 and 4

Step-by-step explanation:

because yes

totally doesn't say it

Answer:

don't take my word for it

Step-by-step explanation:

1. J

2. E; exponent tells us how many times a number is used as a factor

3. L; if the GCF of a fraction is 1, then we cannot simplify it further.

4. C; Binary, means something w/ 2 components (0s and 1s in this case).

5. same as 12, crossed out

6. G

7. I

8. K

9. M

10. D; Divisible, by definition (no remainder/trailing digits e.g.: 1.3495).

11. A; Algebraic factor, it has common symbols used in algebra (e.g.: x)

12. crossed out

13. E; exponent, when we have [tex]3^x[/tex], x is the number telling us this.

Answer:

The answer is A because 144 - 121 = 23 so

Step-by-step explanation:

because 144 - 121 = 23

Answer:

You have 50 lb of sand, and you are pouring this into a wagon.

We have the relationship:

y = 10lb*x

Where x is the number of bags of sand that you poured into the wagon.

We know that in total, you have 50 lb of sand, then let's find the domain of this function (Domain is the set of the possible values of x)

The minimum will be when x = 0, you poured 0 bags at this point.

And the maximium will be when y = 50lb

y = 50lb = 10lb*x

     50lb/10lb = x = 5

Then the domain is 0 ≤ x ≤ 5

Then we only will graph this in that range of values.

The graph will be something like:

Answer:

She will dive 30 meters below sea level

Step-by-step explanation:

0 is the sea level, so that means 0-30 meaning she will go 30 meters below sea level.

Answer:

the answer should be clld i am pretty sure

Step-by-step explanation:

Answer:

2.8

Step-by-step explanation:

It is the same

Answer:

my last 2 braincells trying to understand this question

Step-by-step explanation:

Answer:

34,48

Step-by-step explanation:

Answer:

[tex]the \: slope \: is \to \boxed{60}[/tex]

Step-by-step explanation:

[tex]if \to C=65+60t \\ C=60t + 65 \\ but \: the \: \boxed{ c - intercept} \: is \: in \: the \: form \to \\ c = mt + b \\ hence \to \\ 60t = mt \\ m = \frac{60t}{t} \\ m = 60 \\ the \: slope \: is \to \boxed{60}[/tex]

We want to analyze the given linear equation, we will find that the slope is 60, and it means that he charges 60 per hour.

A general linear equation is written as:

y = a*x +b

Where a is the slope and b is the y-intercept.

In this case, we have the equation:

c(t) = 60*t + 65

Is easy to identify that the slope is equal to 60.

Given that we know that he charges per hour, and that t represents the number of hours that the electrician worked, we can assume that the slope represents how much the electrician charges per hour.

If you want to learn more about linear equations, you can read:

https://brainly.com/question/14323743

Answer:

Thousands

Step-by-step explanation:

Answer:

2x(2x-1)

Step-by-step explanation:

[tex]4 {x}^{2} - 2x \\ \\ = 2x(2x - 1) \\ [/tex]

Answer:

8x + 12

Step-by-step explanation:

Answer:

you have to divide the gallons with the money per gallon

Step-by-step explanation:

Answer:

$842.40

Step-by-step explanation:

2.70 x 312

Answer:

Answer should be 36

Step-by-step explanation:

I used a calculator, thought I'm not 100% sure what your question is. Please correct me if i'm wrong.

Answer:

C

Step-by-step explanation:

EDGE2021

Step-by-step explanation: The x-intercept is

the point where a line crosses the x-axis.

So the x-intercept for the line on the graph is (7, 0).

All x-intercepts have a y-coordinate of zero.

The y-intercept is a point where a line crosses the y-axis.

So the y-intercept for the line on the graph is (0, 5).

All y-intercepts have a x-coordinate of zero.

Answer:

Step-by-step explanation:

45.85*7%= 3.21 tax

45.85+3.21=49.06 total

Answer:

2.        3x + 4

Step-by-step explanation:

What we know:

w=x

Perimeter (p) = 8x+8

Formula for perimeter  p =2(L+W)

8x+8 =  2(L+W)

L+W is half, so    

 L+W = 4x+4

Substract W on both sides;

L = 4x+4 -W    

We know that  W = x

So

L= 4x+4-x

4x-x= 3x

L= 3x+4