what can I do to solve the problem

Answer:

c

Step-by-step explanation:

The correct values of a and b are a = 3.1 and b = 2.5, which corresponds to option A.

To solve the question, we need to set up an equation using the information given. Here's a step-by-step explanation:

Answer:

The difference between the given expressions would be [tex]x - 2[/tex]

Step-by-step explanation:

Given phrase,

Difference between x+5 and 2x+3,

[tex]( 2x + 3 ) - (x + 5)[/tex]

[tex]=2x + 3 - x - 5[/tex]   ( By distributive property )

[tex]=x - 2[/tex]     ( By combining like terms )

Hence, the required difference would be [tex]x-2[/tex]

We are given original selling price of book = $b.

Price is marked down by 46%.

46% can be written as 46/100 in decimals it would be 0.46.

Therefore, markdown as a decimal is 0.46

Now, markdown is 0.46 of original price = 0.46b

Therefore, new price after marked down can be written by expression =

b - 0.46b = 0.56b.

If original retail price was = $29.00.

The sale price would be 0.56b = 29*0.56 = $15.66.

Total saving = 29-15.66 = $13.34.

Therefore, you save $13.34 by paying the sale price $15.66.

Where does 56 come from ?

Answer:

154 LBS

Step-by-step explanation:

1 KG = 2.2 LBS

70 KG X 2.2 = 154

To convert kilograms to pounds, you divide the weight in kilograms by 0.4536. So, a person weighing 70 kg would weigh approximately 154.32 lbs.

The subject you're asking about is conversion from kilograms to pounds. A weight of 1 lb is equivalent on Earth to a mass of 0.4536 kg. So, to convert kilograms to pounds, you would divide the weight in kilograms by the equivalent mass of 1 pound in kilograms.

For example, a person weighing 70 kg would weigh approximately 154.32 pounds. This was calculated by dividing 70 kg by 0.4536 kg per pound (70/0.4536 = 154.32 pounds). It's important to note that while weight can vary slightly depending on location due to differences in gravitational pull, this conversion factor still provides a good estimation for most common situations.

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The value of function f(x - 1) = 2x² + 4x + 5 is not true.

Here,

The function is given as;

f (x) = 2x² + 3

And, f(x - 1) = 2x² + 4x + 5

We have to check the value of f(x - 1) is true or not.

What is substitution method?

To find the value of any one of the variables from one equation in terms of the other variable is called the substitution method.

Now,

The function is;

f (x) = 2x² + 3

To determine the value of f (x - 1), we can put (x -1) in place of x as;

f (x) = 2x² + 3

f (x - 1) = 2(x - 1)² + 3

f (x - 1) = 2(x² + 1 - 2x) + 3

f (x - 1) = 2x² + 2 - 4x + 3

f (x - 1) = 2x² - 4x + 5

Hence, The value of function f(x - 1) = 2x² + 4x + 5 is not true.

Learn more about the substitution method visit:

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The number of employees at the company decreased by 16%. This was calculated by first finding the decrease in number of employees (36) and then calculating this as a percentage of the original number of employees.

To find the percent decrease in the number of employees at the company, you need to follow these steps:

So the number of employees at the company decreased by 16%.

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The y-intercept will be (0,51)

In case, if you want the x-intercept it will be (-51/4,0)

Answer:

neither

Step-by-step explanation:

Answer:

Where do I plot it

Step-by-step explanation:

Answer:

Answer: Hopefully this helps other people! :) I got it right on the test!

you will have a 1 in 6 chance to roll a 1 on a die

A standard Die has 6 sides.

The probability of any number being on top is 1/6.

The probability of having a one on top would be 1/6.

The answer is C. 20/38

Problem 60)

Solution

Part 1

Joy earns $8 per hour. She earns $128 per month.

The number of hours worked in each month = 128/8 = 16 hours.

She works 16 hours each month in order to earn $128.

Part 2

After six months she gets a $2 per hour raise.

Now her earning per become $10.

She works 16 hours each month.

Joy earning per month = 16*10 = $160.

Hope you will understand the solution. Thank you :)

[tex]f(x)=3x\to y=3x\\\\\text{Interchange the y and the x}\\\\x=3y\\\\\text{Solve for y}\\\\3y=x\qquad|:3\\\\y=\dfrac{x}{3}\\\\Answer:\ C.\ f^{-1}(x)=\dfrac{x}{3}[/tex]

The required inverse function would be f⁻¹(x) = x / 3, which is the correct answer would be option (C).

The inverse function is defined as a function obtained by reversing the given function.

To determine the inverse of a function, all you have to do is switch where x and y are and resolve for y.

We have to find the inverse of the function below :

f(x) = 3x

So after switching x and y,

Now, we solve for y regularly.

f(x) = x = 3y

Solve for y :

⇒ x = 3y

⇒ x / 3 = y

⇒ y = x / 3 = f⁻¹(x)

Therefore, the required inverse function would be f⁻¹(x) = x / 3.

Hence, the correct answer would be an option (C).

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Set up a proportion:

6/20 = x/90

Meaning 6 saved over 20 and x saved over 90

Cross multiply

540 = 20x

x = 27

He saved $27

x = 1, y = - 4

substitute y = - 4x into the other equation

x - 4x = - 3

- 3x = - 3 ( divide both sides by - 3 )

x = 1

substitute x = 1 into y = - 4x ⇒ y = - 4

Subtract the difference from the total:

575,000,000 - 350,000 = 574, 650, 000

Divide the difference by 2:

574, 650, 000 / 2 = 287,325,000

That is the lower one, then add the difference for the higher one:

Restaurant A = $287,325,000 + $350,000 = $287, 675,000

Restaurant B = $287,325,000

3m^2 (10+m)

Use FOIL

3m^2*m=3m^3

3m^2*10= 30m^2

Answer: 3m^3 + 10m^2

Solution :

Given expression [tex]3m^{2}(10+m)[/tex]

To simplify this expression, first we need to know about the Distributive property.

Distributive Property: [tex]a\times(b+c)=(a\times b)+(a\times c)[/tex]

Given expression [tex]3m^{2}(10+m)[/tex]

Applying Distributive property on this expression -

[tex]\Rightarrow 3m^{2}(10+m)=(3m^{2}\times10)+(3m^{2}\times m)[/tex]

                                       [tex]= 30m^{2}+3m^{3}[/tex]

Simplified form of [tex]3m^{2}(10+m)[/tex] is  [tex]30m^{2}+3m^{3}[/tex]

38 divided by 100

what you could do is that 38 in decimal form will be 38.00

So,...

38.00 divided by 100

when you divided by 10 or 100 or 1,000 or etc.

all you have to do is move the decimal from 38.00 to the left 2 times

(because there are only 2 zeros in 100)

and your answer will be 0.38

38 divided by 100 = 0.38

hope that helps

The types of triangles are:

d. Scalene

e. Isosceles

f. Isosceles

g. Equilateral

h. Scalene

i. Equilateral

Here's the type of triangle for each set of measurements:

d. 45 cm, 61 cm, 60 cm:

All sides are different lengths.

Therefore, this is a scalene triangle

e. 30 cm, 31cm, 30 cm:

Two sides have equal lengths (30 cm).

This is an isosceles triangle

f. 4 cm, 5ft, 4 cm:

We need to convert feet to the same unit as cm for comparison.

1ft = 12 inches = 2.54 cm

5ft = 5 * 2.54 cm ≈ 12.7 cm

We have two sides with equal length (4 cm) and one different length (12.7 cm).

This is also an isosceles triangle

g. 89mm, 89mm, 89mm:

All three sides have the same length.

This is an equilateral triangle, a special type of isosceles triangle where all sides are equal.

h. 9 in, 5in, 3 in:

All sides have different lengths.

This is a scalene triangle

i. 22cm, 22cm, 22in:

We need to convert inches to centimeters for comparison.

22in = 22 * 2.54 cm ≈ 55.88 cm

Comparing the converted lengths, we see all sides have equal lengths.

This is an equilateral triangle

5+10+15+20+25=75

75/5=15

15 is the mean

5+10+15+20+25=75

Your mean will be 75

Then divide by 5 = 15

Your answer will be 15

The answer is 3.26             :D :D :D :D    

The answer to rounding the number 3.2649 to the nearest hundredth is 3.26. You need to consider the digit in the thousandths place to determine if you round up or down.

To round the number 3.2649 to the nearest hundredth, you will need to look at the digit in the thousandths place, which is 4 in this case. In rounding, if the digit is 5 or more, you round up, else you round down. Here it is 4, it's less than 5, so we round down. So, the number 3.2649 when rounded to the nearest hundredth is 3.26.

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The answer is a chemicl change.

A chemical change occured when a metal changed color because it reacted with another substance.

First we find the slope of the given line by using slope intercept form.

Converting the equation into slope intercept form

[tex] 5y=-2x-10[/tex]

Divide both side by 5 we get

[tex] y==-\frac{2}{5}-2[/tex]

On comparing with [tex] y=mx+c[/tex]

We get slope [tex] m=-\frac{2}{5}[/tex]

as the slope of line is negative therefore the line will either "b" or "d"

As line "b" pass from (0,2)

On putting it in given equation we get

[tex] 2(0)+5(2)=10[/tex]

Which is not equL to RHS of the line

Therefore b is not the given line

Now putting point (0,-2)

We get [tex] 0+5(-2)=-10[/tex]

Satisfy the equation and line "d" pass from it

There the give equationis of line "d"

Answer:the answer is line D

Step-by-step explanation:took the test and got it right

Hi!

Solve for d.

[tex]12y+d=-19y+t[/tex]

Subtract by 12y from both sides.

[tex]12y+d-12y=-19y+t-12y[/tex]

[tex]Answer---> d=-31y+t[/tex]

Solve for y.

Add 19y from both sides.

[tex]d+12y+19y=t-19y+19y[/tex]

[tex]d+31y=t[/tex]

Add d from both sides

[tex]d+31y+-d=t+-d[/tex]

[tex]31y=-d+t[/tex]

Divide by 31 from both sides.

[tex]\frac{31y}{31}=\frac{-d+t}{31}[/tex]

[tex]Answer ----> y=\frac{-1}{31} d+\frac{1}{31}t[/tex]

Hope this helps!

Thank you for posting your question at here on Brainly.

Have a great day!

-Charlie

Slope m = y2-y1/x2-x1

Points (-1,3) and (2,-5)

M= -5-3/2-(-1)

M= -8/3

M= -8/3

Slope is -8/3

Now fill in the formula equation of a line using one if the points and slope to find b .

(2,-5) and slope -8/3

Y=mx+b

-5=-8/3(2)+b

-5=-16/3+b

-5+16/3=b

1/3=b

Now put all together

Y= -8/3x+1/3

Slope intercept form of a line is y = mx + b, where m is the slope and b is the y coordinate of the y intercept.

The easiest way to solve this problem is by using another equation for a line, also known as point slope form. This equation is best to use for a line if you have  a point and slope of the line, but do not have the y-intercept.

We need to find the slope of this line passing through the pair of points (-1, 3) and (2, -5). We can do this by using the slope formula: [tex]\frac{y_2-y_1}{x_2-x_1}[/tex]. Substitute in the appropriate coordinates.

[tex]\frac{-5-3}{2-(-1)}[/tex] = [tex]\frac{-8}{3}[/tex], so the slope of the line is -8/3.

Point slope form of a line is [tex]y-y_1=m(x-x_1)[/tex]. Substitute -8/3 for m, and use the point coordinate (-1, 3) for y1 and x1. You could use either point coordinate but I chose to use this one.

[tex]y-3= -8/3[x-(-1)][/tex]

Distribute -8/3 inside the parentheses.

[tex]y-3= -8/3x - 8/3[/tex]

Add 3 to both sides.

y = -8/3x + 1/3 is your answer (slope intercept form).

$2.60 was spent on a box of crackers.  s = 20 students.

Let's have C be the cost of crackers for each student.  To find the cost, we divide the total amount of money (2.60) by the number of students (20)

C = 2.6/20

C = 0.13

The cost of the crackers for each student in Mr. McKay's class, if divided evenly, would be $0.13 when there are 20 students.

Mr. McKay's expenditure on the box of crackers can be written as an arithmetic expression where the total cost is divided by the number of students. This expression is 2.6 / s. By substituting the given number of students (s=20), we find that the cost of the crackers for each student is 2.6 / 20 = $0.13. Therefore, each student should pay $0.13 if the cost of the crackers is to be divided evenly among them.

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the LCD of the two is 9 what you do is this  so 1/3,2/9 is simple its 1/3 2/3 1 then lets try the 2/9 2/9 4/9 6/9 and keep doing that until they both reach the SAME number.

The LCD (Least common denominator) is 9,  

For the denominators (3, 9) the least common multiple (LCM) is 9.

Therefore, the least common denominator (LCD) is 9.

Hope This Helps :D