7x-y=3 for y (please show work)

Answers

Answer 1

Answer:

y= -3+7x

Step-by-step explanation:

7x-y=3 for y

Move variable to the right

-y+3-7x

Change the signs

y= -3+7x


Related Questions

1 pound of blueberries cost $2.75 yes or no

Answers

Answer:

no

Step-by-step explanation:

cause I don't really know


If an items costs $41.04, including an 8% sales tax, what was the cost of
the item before taxes?

Answers

Answer:

$38

Step-by-step explanation:

I solved this by doing a proportion, 41.04/108 = x/100 to find the original price before the 8% tax. To solve this proportion you have to isolate the variable, so you would do the cross product and multiply (41.04 x 100) and have that equal to 108x. So then because you have 108x = 4104, isolate x by dividing by 108 and you get 38, thus $38.

You can also check your work by multiplying 38 by 0.08 to find the amount of sales tax added, and if you do this you will get the value $41.04.

A percentage is a number or ratio that represents a fraction of 100. 

If an item costs $41.04, including an 8% sales tax then the cost of the item before the tax is $37.76.

What is a percentage?

A percentage is a number or ratio that represents a fraction of 100. 

Example:

50% = 50/100 = 1/2

20% = 20/100 = 1/5

25% = 25/100 = 1/4

10% = 10/100 = 1/10

5% = 5/100 = 1/20

We have,

Cost of an item including tax = $41.04

Sales tax = 8%

8% = 8/100

The cost of the item without the sales tax:

= 41.04 - (8% of 41.04)

= 41.04 - (8/100 x 41.04)

= 41.04 - 3.2832

= 37.76

Thus,

The cost of the item before the tax is $37.76.

Learn more about percentages here:

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Ms. Boyd has 9 bills in her purse that consist
of five-dollar bills and twenty-dollar bills. The
value of the bills is worth $105. How many
five-dollars bills and twenty-dollar bills does
Ms. Boyd have?

Answers

Answer:

5 twenty's 1 five

Step-by-step explanation:

20 x 5 = 100

100 = 5 = 105

The original price of pair of jeans is $40. The sales prices is 20% off the original price. What is the discount? Answer must be listed in $ form.

Answers

Answer:

The discount is $20 off or 50% off.

Step-by-step explanation:

It is easy math.

the cost of 2 cups of strawberries is $6. write an expression for the relationship between the cost, c, and the cups of strawberries,s.

Answers

2cup=6$

Im sorry if it isnt good.

A popular podcast poses questions to subscribers at the end of each segment, asking listeners to enter their
responses on a website to join the sample. One of the questions was: "Do you regularly read nonfiction novels?" More
than 45,000 people responded, with 59 percent saying "Yes." Which of the following is true?

A) The sample is too small to draw any conclusion.
B) About 59% of people in the US regularly read nonfiction novels.
C) The poll uses voluntary response, so the results tell us little about the population of all adults.
D) The poll uses a convenience sample, so the results tell us little about the population of all adults.
E) The poll suffers from nonresponse bias, so the results tell us little about the population of all adults.

Answers

Answer:

The poll uses voluntary response, so the results tell us little about the population of all adults.

Step-by-step explanation:

I took the test

The one which is true would be; C poll uses voluntary response, so the results tell us little about the population of all adults.

How to calculate confidence interval for population mean for small sample?

If the sample size is given to be n < 30, then for finding the confidence interval for mean of population from this small sample, we use t-statistic.

Let the sample mean given as [tex]\overline{x}[/tex] and

The sample standard deviation s, and

The sample size = n, and

The level of significance = [tex]\alpha[/tex]

About 59% of the 45,000 people responded as "Yes" to the question

The sample size is n = 45,000.

The sample proportion is p = 0.59.

The sample selected is a voluntary sample, such that the individuals provided their responses voluntarily. So, the sample is not a true representative of the population.

Thus the results tell us little about the population of all adults because of the large sample size.

The correct option is C poll uses voluntary response, so the results tell us little about the population of all adults.

Learn more about confidence interval here:

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Will give brainlist to who finds this out!

Answers

Answer:

1

2

4

Step-by-step explanation:

Answer:

[tex]\sqrt{1}, \sqrt{4}, \sqrt{9}[/tex]

Step-by-step explanation:

First, remember that rational numbers either terminate or have repeating decimals. Those three are the only answers with perfect squares, [tex]\sqrt{1} = 1, \sqrt{4} = 2, \sqrt{9} = 3[/tex]. As you can see all of these answers terminate and therefore are rational, the rest go one forever while never repeating.

Tell me weather the transformation is a dilation Explain

Answers

Answer:

A dialation is an enlargment or reduction of a figure. The size changes. To find dilation, multiply each point by a scale factor(k). (x, y)➡(kx, ky)

Ex. scale factor is 3

(2, 5)➡(6, 15)

Step-by-step explanation:

I just learned this.

A music store owner noted that CD sales had dropped 12% from one quarter to the next. If the owner sold 460 units in the first quarter, how many did she sell in the next quarter?

Answers

Answer:

404.8

Step-by-step explanation:

100%=460

12%=x

x=(12*460)/100

x=55.2

Answer=460-x

6 More Than a Number is 14 what is the number?​

Answers

Answer:

8

Step-by-step explanation:

a+6=14

a=14-6

a=8

Therefore

8+6=14

How do you write 1 2/3 as a decimal.

Answers

Answer:

1.7

Step-by-step explanation:

FEMALE REPRODUCTIVE SYSTEM (SE-7)

(have this done correctly for brainiest)

label the image with the words below.​

Answers

Answer:

reproductive

Step-by-step explanation:

Multiply -5/3 and -9/1

Answers

it’s 15!! hope this helps :))))
-5/3 x -9/1

Multiplying two negatives gives a positive:

5/3 x 9/1

Reduce the numbers using the greatest common factor (3):

5 x 3/1

5 x 3

15


Final answer is: 15

In fractional form: 15/1

What is the value of this expression if h = 8,7 = -1, and k = -12? 13 20​

Answers

Answer:

Step-by-step explanation:

What is the value of this expression if h = 8,7 = -1, and k = -12? 13 20​

Apply the distributive property to the expression to write an equivalent expression. 5x + 35 Complete the statements. Find the GCF of . Now, factor out the GCF by dividing each term in the expression by . 5x divided by the GCF is , and 35 divided by the GCF is . The equivalent expression is .

Answers

Answer:

Apply the distributive property to the expression to write an equivalent expression.

5x + 35

Complete the statements.

Find the GCF of

✔ 5x and 35

.

Now, factor out the GCF by dividing each term in the expression by

✔ 5

.

5x divided by the GCF is

✔ x

, and 35 divided by the GCF is

✔ 7

.

The equivalent expression is

✔ 5(x + 7)

.

The equivalent expression is 5(x + 7).

Calculation of the equivalent expression;

Here we need to apply the distributive property

The equation is 5x + 35

Now we have to determine the GCF by dividing the 5

So, it comes 5(x + 7).

Hence, we can conclude that The equivalent expression is 5(x + 7).

Learn more about expression here: https://brainly.com/question/24441611

.

A high school math class has 28 students: 18 seniors and 10 juniors. What is the probability that four randomly selected students will be seniors?

Answers

Answer:

18/28, or percentage wise, approximately 64.2%

Step-by-step explanation:

Take the seniors and divide it by the total # of students, and you got your probability!

Find the slope of each graph. Express the answer in simplest form.Can you please show me a graph you answer ​

Answers

Answer:

[tex]m=\frac{3}{2}[/tex]

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Algebra I

Slope Formula: [tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]

Step-by-step explanation:

Step 1: Define

Find points from graph.

Point (-4, -2)

Point (0, 4)

Step 2: Find slope m

Substitute:                    [tex]m=\frac{4+2}{0+4}[/tex]Add:                              [tex]m=\frac{6}{4}[/tex]Simplify:                        [tex]m=\frac{3}{2}[/tex]

And we have our final answer!

please help it’s due right now. ofc it’s a quiz:D

Answers

Answer:

D is the answer.

Step-by-step explanation:

Y is going up by 3, while x is going up by 2. 3 over 2, which is the last answer.

we now its 3/2 because of the formula rise/run (rise over run).

3h2 + 8m for h = 3 and m = 2

Answers

Answer: 43!

Step-by-step explanation:

Somebody help me find a

Answers

Answer:

44°

Step-by-step explanation:

In the first triangle, the third angle is 180-95-39=46.

It has a congruent angle in the second triangle.

So the second triangle is 180-90-46=44°

a=44°

Is Oregon a swing or a safe state?

Answers

Answer:

Oregon is a safe state

Step-by-step explanation:

this election it is also democratic

What is the domain of the relation graphed below? There are 6 points on a coordinate plane. The points are (negative 5, 0), (negative 4, 1), (negative 3, 4), (1, negative 2), (2, 4), (5, negative 3).

Answers

Answer:

3

Step-by-step explanation:

what is the value of f(g(-3)?

Answers

Answer:

f(x) + g(x) = (-2x + 8)+ 3x

f(x) + g(x) = -2x + 8 + 3x   Combine like terms.

f(x) + g(x) = x + 8        

f(x) + g(x) = (f+g)(x) = x + 8

(f + g)(-1) = -1 + 8

(f + g)(-1) = 7

Step-by-step explanation:

The base of a triangle is nine centimeters longer than the perpendicular height. If the area of the triangle is 180 square centimeters, what is the length of the base, in centimeters?

Answers

Answer:

The base is 24 cm long.

Step-by-step explanation:

Equations

Let's call

b= base of the triangle

h=height of the triangle

The base is 9 cm longer than the height, thus:

b = h + 9

The area of the triangle is:

[tex]\displaystyle A=\frac{bh}{2}[/tex]

[tex]\displaystyle A=\frac{(h+9)h}{2}[/tex]

And its value is 180:

[tex]\displaystyle \frac{(h+9)h}{2}=180[/tex]

Multiplying by 2:

[tex](h+9)h=360[/tex]

Operating:

[tex]h^2+9h-360=0[/tex]

Factoring:

[tex](h-15)(h+24)=0[/tex]

The only valid positive solution is:

h = 15 cm

And b = h + 9 = 24

b = 24 cm

The base is 24 cm long.

Detyra 3: Takim me furnitorin
Rovena shkon me makinë nga restoranti
te furnitori i perimeve, 9 km larg. Secili nga
shokët mban shënim të gjitha udhetimet qe
bëhen në lidhje me restorantin dhe kohen
e shpenzuar në takime ne menyre qe
shpenzimet t'u rimbursohen dhe te dine sa
kohe po investojne
a Vizatoni një grafik të largesës në varësi te
kohës për udhëtimin e Rovenes
b Ne cilen orë kthehet ajo ne restorant
c Për sa kohë nuk ishte ajo ne restorant
Artesohun
50​

Answers

i cant understand please turn to enlish

Help plzzz will give brainliest

Answers

Answer:

1/3 and false at least i think wait for other answer to make sure it is correct

Step-by-step explanation:

Which of the tables represents a function? 50 points i will give braileist

Table P
Input Output
6 3
1 2
6 7
Table Q
Input Output
5 1
7 8
5 6
Table R
Input Output
2 5
6 7
9 8
Table S
Input Output
3 6
4 7
4 5
Question 2 options:

1)

Table P

2)

Table Q

3)

Table R

4)

Table S

Answers

Answer:

Table R

Step-by-step explanation:

Table P

Not a function as repeat input of 6 with different outputs

Table Q

Not a function as repeat input of 5 with different outputs

Table R

Function

Table S

Not a function as repeat input of 4 with different outputs

12=r-(34-2) equation

Answers

r= 44
Just distribute the negative sign to 34 and 2, and then solve the equation like usual

The term "jet stream" is often used by weather forecasters to describe
A: The cloud-like condensation trails that are sometimes seen behind jet aircraft.
B: Warm pacific winds associated with volcanic activity in the western pacific which carry heat to the north pole
C: Solar winds that bring high energy particles to the upper atmosphere, providing heat which sets off convection cycles disturbing weather in the tropical latitudes
D: The west to east winds that circle the globe, often just below the poles in latitude and just beneath the stratosphere in elevation

Answers

Answer:

daddy chill what does the man say?

Step-by-step explanation:

???

D; it’s the big winds that circle around the globe

What is An equivalent fraction to 1/6

Answers

Answer:

2/12

Step-by-step explanation:

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