What percentage of the marbles in the jar are white?
O 20%
O 40%
O 60%
O 80%

Answer:

Step-by-step explanation:

To find the interest rate on an investment of $470 for seven years with an ending balance of $683.85, you can use the formula for simple interest:

I = P * r * t

Where I is the interest earned, P is the principal amount ($470), r is the interest rate, and t is the number of years (7).

Rearranging the formula to solve for r:

r = I / (P * t)

Substituting the given values:

r = (683.85 - 470) / (470 * 7)

r = 213.85 / 3290

r = 0.0649 or 6.49%

So, the interest rate on the investment of $470 for seven years with an ending balance of $683.85 is 6.49%.

Answer:

11

Step-by-step explanation:

Let's call the number of games of Balloon Bouncer that Amy played as "x".

Amy started with 35 tokens and used 2 for Roll-and-Score, so she had 35 - 2 = 33 tokens left.

Each game of Balloon Bouncer costs 3 tokens, so the total number of tokens used for Balloon Bouncer games is 3x.

Therefore, the equation to find the number of games Amy played is:

33 = 3x

Solving for x, we get:

x = 11

So Amy played 11 games of Balloon Bouncer.

Answer: 3g + 3 = 35

Step-by-step explanation:

Alexandria can expect to spend about $128.25 on school lunches for the year if she forgets to bring her lunch about once a week.

If Alexandria forgets to bring her lunch 15% of the time, then she will need to buy a school lunch on 15% of the 180 school days:

15% of 180 = 0.15 × 180 = 27 school days

So, Alexandria will buy a school lunch 27 times during the school year.

The average cost of a school lunch is $4.75.

So the total cost of buying school lunches for the year will be:

27 × $4.75 = $128.25

Therefore, Alexandria can expect to spend about $128.25

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The scale factor for the area of the pre-image to get the image is 2.

Suppose a figure (pre image) is dilated (dilated image) by scale factor of k. So, if a side of the figure is of length L units, and that of its similar figure is of M units, then:

L = k × M

where 'k' will be called as scale factor.

The linear things grow linearly like length, height etc.

The quantities which are squares or multiple of linear things twice grow by square of scale factor. Thus, we need to multiply or divide by k² to get each other corresponding quantity from their similar figures' quantities.

So area of first figure = k² × area of second figure

Given that Parallelogram CALM is multiplied by a scale factor to create Parallelogram C'A'LM'. Parallelogram C'A'L'M' has an area of 485.64 square feet. Also, the area of the parallelogram CALM is 121.41 square feet.
Therefore, we can write,

Final Area / Initial Area = (Scale Factor)²

485.64 square feet / 121.41 square feet =  (Scale Factor)²

4 = (Scale Factor)²

(Scale Factor) = √4

Scale Factor = 2

Hence,  Scale Factor = 2

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The complete question is:

The area of Parallelogram CALM is 121.41 square feet. Parallelogram CALM is multiplied by a scale factor to create Parallelogram C'A'LM'. Parallelogram C'A'L'M' has an area of 485.64 square feet. What is the scale factor for the area of the pre-image to get the image?

Answer:

Step-by-step explanation:

9 times

6,7,8,9 (4 times starting at 5)

Answer: 1.25

Step-by-step explanation:

you divide/combine 5 and 4 to get Ur anwser 1.25.  Yet it's the same thing as asking ,"How much is 5 divided by 4?" just think of it to yourself as how many times you can fit 4 into 5. One tip you can use is 4(x) = 5 and x will equal 1.25.

The values of v w x y and z​ are given below:

<EDA= <EBA= 40°

==> x= 40°

This is because the circumferential arc of the same arc is equal.

<PAE= <ADE= 40°

=>v= 40°

This is based on the alternate segment theorem.

Because EC= EB, <ECB= <EBC= 80°

=> w= 80°

This is based on the properties of an isosceles triangle.

<ECB = <EAB = 80°

=> y= 80°

This is because the circumferential angle of the same arc are equal

Because <EBC = <ECB= 80°

=> <BEC = 180° -(80 x2)

= 20°

This is because the sum of the interior angles of the triangle is 180°

<AEB = 180°-y - <ABE

= 60°.

<AEC = <AEB + <BEC= 60° + 20°

=80°.

So <ADC = <AEC = 80°

=> = 80°

This is because the circumferential angle of the same arc are equal

Therefore,

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Answer:

1 + 1 = 2

Step-by-step explanation:

you add one and add another one and together thetr is two. so you would have two left.

Side a is 2.5 inches long, side b is 5 inches long and side c is 6.5 inches long. Therefore, option C is the correct answer.

A scale factor is defined as the ratio between the scale of a given original object and a new object, which is its representation but of a different size (bigger or smaller).

The basic formula to find the scale factor of a figure is expressed as,

Scale factor = Dimensions of the new shape ÷ Dimensions of the original shape.

Given that, scale factor =2:1

Scale drawing to object the scale factor is 2:1.

Now,

a=1/2 *5 =2.5 inches

b= 1/2 *10 = 5 inches

c= 1/2 * 13 = 6.5 inches

Therefore, option C is the correct answer.

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By applying repeated and independent measures concepts, it can be concluded that there are 11 individuals participated in the repeated-measures research study and 12 individuals participated in the independent-measures research study (option D).

In a repeated-measures research study, the degree of freedom (df) is calculated by subtracting 1 from the number of individuals in the study (n). Therefore, if df = 10, then the number of individuals in the study is 10 + 1 = 11.

Whilst, in an independent-measures research study, the degree of freedom (df) is calculated by subtracting 2 from the number of individuals in the study (n). Therefore, if df = 10, then the number of individuals in the study is 10 + 2 = 12.

Therefore, it can be concluded that there are 11 individuals participated in the repeated-measures research study and 12 individuals participated in the independent-measures research study (option D).

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The correct expression for 7c-3+2c=15 is c = -1

An expression is a sentence with a minimum of two numbers and at least one math operation. This math operation can be addition, subtraction, multiplication, and division. The structure of an expression is: Expression = (Number, Math Operator, Number) For example, = 7 + 9 = 23 × 4 = 37 – 6 = 25 + 9 – 4 ÷ 2

Move all terms containing c to the left side of the equation.

Subtract 3c from both sides of the equation:

[tex]= > 7c+6-3c=2[/tex]

Subtract 3c from 7c:

[tex]= > 4c+6=2[/tex]

Move all terms not containing c to the right side of the equation.

Subtract 6 from both sides of the equation:

[tex]= > 4c=2-6[/tex]

Subtract 6 from 2:

[tex]4c=-4[/tex]

Divide each term in [tex]4c=-4[/tex] by [tex]4[/tex] and simplify.

Divide each term in [tex]4c=-4[/tex] by [tex]4[/tex]:

[tex]\frac{4c}{4} =\frac{-4}{4}[/tex]

Simplify the left side:

Cancel the common factor of [tex]4[/tex]:

[tex]c=\frac{-4}{4}[/tex]

Simplify the right side.

Divide [tex]-4[/tex] by [tex]4[/tex]:

[tex]c=-1[/tex]

Therefore, the correct expression for 7c-3+2c=15 is c = -1

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The question is:

How to solve this 7c-3+2c=15

The value of the equation is A = ( 6x - 9y ) / ( 3 + 2y )

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the equation be represented as A

Now , the value of A is

Substituting the values in the equation , we get

A = ( 12x - 18y ) / ( 6 + 4y )

On simplifying the equation , we get

Taking the common factor as 6 in the numerator , we get

A = 6 ( 2x - 3y ) / ( 6 + 4y )

Taking the common factor as 2 in the denominator , we get

A = ( 6/2 ) ( 2x - 3y ) / ( 3 + 2y )

On further simplification , we get

A = 3 ( 2x - 3y ) / ( 3 + 2y )

A = ( 6x - 9y ) / ( 3 + 2y )

Hence , the equation is A = ( 6x - 9y ) / ( 3 + 2y )

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The solution of the equations y = 3x + 2 and - 4x + 2y = 8 by elimination method will be (2, 8).

An answer to a formula is any variable value that fulfills the equal outcomes, that is, it tends to make the Left Hand Side (LHS) and Right Hand Side (RHS) of the formula equal. To solve an equation, you must locate the feasible solution) to that formula.

The equations are given below.

y = 3x + 2

2y = 6x + 4

6x - 2y = - 4         ...1

- 4x + 2y = 8        ...2

Add both equations, then we have

6x - 4x = - 4 + 8

2x = 4

x = 2

Then the value of 'y' is given as,

y = 3(2) + 2

y = 6 + 2

y = 8

The solution of the equations y = 3x + 2 and - 4x + 2y = 8 by elimination method will be (2, 8).

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When the residual is negative it represents the predicted value is very much high.

Therefore, the negative residual value on the regression line represents the predicted value is very much high.

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Answer:

788883332220+2648340

Step-by-step explanation:

what is energy transferred

Answer:

99 square millimeters

Answer given by the other user is correct. Merely giving the steps required to solve such a problem

Step-by-step explanation:

Break up the figure into 3 rectangles as shown in the attached image

The area of the top rectangle with size 11 x 3 = 33 square millimeters

The area of the small rectangle is 2 x 5 = 10 square millimeters

The area of the vertical rectangle is 4 x 14 = 56  square millimeters

Total area = 33 + 10 + 56

= 99 square millimeters

The method for addressing inequality 2v + 12 ≥ 16 is v ≥ 2. This indicates that any value of v larger than or equal to 2 will fulfil the inequality.

The idea of inequality—the state of not being equal, particularly in status, rights, and opportunities1—is one that is central to social justice theories. However, because it frequently has diverse meanings to different people, it can become confusing in public discourse.

The equation-like appearance of the phrase 5x 4 > 2x + 3 is altered by the arrowhead in place of the equals sign. It serves as an illustration of inequity. This shows that the section on the left, 5x 4, is bigger than the part on the right.

Subtract 12 from both sides of the inequality:

2v + 12 - 12 ≥ 16 - 12

Simplifying, we get:

2v ≥ 4

Divide both sides of the inequality by 2:

2v/2 ≥ 4/2

Simplifying, we get:

v ≥ 2.

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The percentage of the atmosphere made up of element 2 is 17%.

According to its definition, a percentage is any number relative to 100. It is shown with the sign %. "Out of 100" is what the percentage means. Consider dividing any quantity or item into 100 identical bits.

Given that in the pie chart, the atmosphere is distributed in different parts by which it is made.

The data is,

Element 1 = 76%

Element 2 = 17%

Other = 76%

The amount of element 2 in the atmosphere is 17%.

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Answer:

61.504

Step-by-step explanation:

Answer:

There are £61.50 in 992

Step-by-step explanation:

Here, we shall be doing some currency conversions.Now, £31 = 500 rublesThen;£x = 992 rubles To get c, what we do is simply cross multiply £x * 500 rubles = £31 * 992 rubles £x = (£31 * 992 rubles)/500 rubles £x = £61.504which is £61.50 to two decimal places

hope this helps!!

Answer:5

Step-by-step explanation:

This is a variation question.

When m is inversely proportional to n,

m ∝ 1/n

Now, there is a constant of 100.

So the formula connecting m and n is

m=k/n where k is the constant

=>m=100/n

Now, n= 20 ( 20 printers)

Thus, m=

100/20=5 minutes.

Hope this helps :)

The range of the data set is, 28

Subtraction in mathematics means that is taking something away from a group or number of objects. When you subtract, what is left in the group becomes less.

Given that;

The data set is,

74, 64, 90, 74, 92, 68, 71

Now, We know that;

Range of data set is calculating by subtracting the lowest value from highest value.

Hence, The range is,

⇒ Highest value - Lowest value

⇒ 92 - 64

⇒ 28

Thus, The value of range = 28

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The inverse of a function f(x)=2x + 1 include the following: A. H(x) = 1/2x - 1/2

In Mathematics, an inverse function simply refers to a type of function that is obtained by reversing the mathematical operation in a given function (f(x)).

In order to determine the inverse of any function, you should swap both the input value (x-value) and output value (y-value) as follows;

f(x) = y = 2x + 1

x = 2y + 1

By rearranging the equation, we have the following:

2y = x - 1

y = (x - 1)/2

H(x) = 1/2(x) - 1/2.

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Step-by-step explanation:

fund the slope then use the two point form

Yes, that is correct. The t-value is used to calculate the significance of the difference between two sample means.

It is used in a t-test, which is a type of hypothesis test that is commonly used in statistical analysis. The t-value changes depending on the number of data points (sample size) collected, as well as the level of confidence desired and the standard deviation of the population. A larger sample size typically results in a smaller t-value, which means that the difference between the two sample means is more significant. On the other hand, a smaller sample size leads to a larger t-value, which means that the difference between the two sample means is less significant. Yes, that is correct. The t-value is used to calculate the significance of the difference between two sample means.

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Answer: 2.4

Step-by-step explanation:

8-2z=10z+3

First, take variables to one side

Don’t forget to change symbols when switch

-2z -10z= -8+3

Now solve, simplify

-12z=-5

The negatives cancel out, so divide both sides by 12

Z= 2.4

There are two solutions to the system of linear equations depicted in the graph: one at (0,4) and one at (-3,0). There is only one distinct solution to the system of equations where the two lines intersect at the points (-3,0) and (0,4).

If the slopes are the same but the y-intercepts vary, the system has no solution. If the slopes are different, the system only has one solution. The system has an endless number of solutions if the slopes and y-intercepts match.

There are therefore countless possible answers. A different kind of linear equation system is a system with two parallel lines represented by the equations is referred to be an inconsistent system. The lines have distinct y-intercepts but the same slope.

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We need the angle AOD to find the x value

What is the solution to an equation?

In order to make the equation's equality true, the unknown variables must be given values as a solution. In other words, the definition of a solution is a value or set of values (one for each unknown) that, when used as a replacement for the unknowns, transforms the equation into equality.

Missed data: ABCD is a QUADRILATERAL

'O'  is a point in the middle joining OA,OB,OC and OD , find the angle AOD  which is x here

Adding 3 angles we get 11x+22,

Equation is :

11x+22 + AOD = 360

=> AOD = 360 - 22- 11x

     AOD= 338- 11x  

We need the angle AOD to find the x value

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The equations that are true for the values of x, y and z are :

The equations can be found based on the relationships between the variables as angles.

x and z are opposite each other which makes them congruent angles which means that they are the same value.

y and 65 degrees are also opposite each other which makes them congruent.

x and 65 degrees are on a straight line and so will add up to 180 degrees which is why the correct equation would be :

x degrees + 65 degrees = 180 degrees

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Options include: