Mary has been saving her weekly allowance for the past 20 weeks. She started with $100 and now has $300. Which equation can be used to find the amount of money Mary receives for her weekly allowance?

Answers

Answer 1

Answer:

Step-by-step explanation:

You should set this up as an y = mx + b equation. Since 300 is her final number, that will be your y value. She started with 100, so that will be your b value. 20 is the number related to the variable you don't know so that will be your m.

300 = 20x + 100

-100            -100

200 = 20x

divide both sides by 20

10 = x


Related Questions

how can I find the slope to this I need help​

Answers

Answer:

Your slope is -1

Step-by-step explanation:

Find the change in x and the change in y and put it in change in y over change in x.

Δx = -1 - -2 = 1

Δy = -1 - 0 = -1

Slope = rise over run = Change in y over change in x =  Δy/Δx = -1/1

Therefore the slope is -1/1 which is written as just -1

6
Estimate each percent.
70% of 103
(1 Point)
Enter your answer



Will make Brainlylist

Answers

Answer:72.1

103*.7=72.1

I hope this is good enough:

Describe the topics in this unit in your own words by explaining FIVE of the vocabulary words/phrases below. You will receive twenty points for each of the vocabulary words or phrases that are correctly used to describe the unit. The vocabulary words must be used to explain the content in this unit. Use complete sentences.

Vocabulary Words/Phrases: Midpoint Formula, Distance Formula, Slope of Parallel Lines, Perpendicular Slope, Composite Figure, Perimeter, Area, Area of a Rectangle, Area of a Triangle, Area of a Kite, Area of a Regular Polygon, Apothem, Equation of a Circle, Center of a Circle, Radius of a Circle

Answers

Answer:

Too much

Step-by-step explanation:

Too much

Check

Your Understanding

Marcos deposited $500 into a 2.5-year simple interest account. He wants to earn $50 interest. What interest rate must the account pay?

Answers

The account must pay a 40 percent interest rate under Marcos.

A basic interest account is what?

A loan's or deposit's initial principal serves as the foundation for simple interest.

Contrarily, compound interest is calculated based on both the principal amount and the interest that is accrued on it each period.

Simple interest is simpler to compute than compound interest because it is just applied to the principal.

based on the information provided,

500+x=200

x=200/500

x=40

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Graph this line using the slope and y-intercept:
y = 8x - 6
Click to select points on the graph.
8
6
4
No
-6
-4
-2
-10
-8
0
co
4
2
6
10
-2
-4
-6
CO
-104

Answers

Here you go. I hope you get it.

The graph of the equation y = 8x - 6 is a straight line.

What is slope intercept form?

The slope intercept formula y = mx + b is used when you know the slope of the line to be examined and the point given is also the y intercept

(0, b).

Given is an equation, y = 8x - 6

Finding the coordinates,

Put x = 0, y = -6

(0, -6)

Put y = 0

8x = 6

x = 0.75

(0.75, 0)

Plotting the graph,

Hence, we will get a straight line of the graph.

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For f(x) = 3x2 - 2, find F(x) =
f(x)dx

Answers

Answer: below

Step-by-step explanation: Given f(x) =kxn where k is a constant, then f'(x) = nkx(n - 1)

Can you apply this principle to this problem, Let me know if you have any further questions about this problem. Thanks.

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A line has a slope of 3 and passes through the point (4, 7). What is its equation in
slope-intercept form?

Answers

Answer:

Step-by-step explanation:

y - 7 = 3(x - 4)

y - 7 = 3x - 12

y = 3x - 5

The equation of the line in slope intercept form having slope 3 and passing through the point (4, 7) is y = 3x - 5.

What is Slope?

Slope of a line is the rise over the run of the given line. It is usually denoted by m.

In other words, Slope of a line can be calculated by finding the difference of the y coordinates divided by the difference of the x coordinates where x coordinate and y coordinate of two points are given.

Equation of a line in slope intercept form is given by

y = mx + c

where, m is the slope and c is the y- intercept.

Now y-intercept is the y-coordinate of the point where x = 0 or when the line touches the Y axis.

Here, m = 3

We have a point (x, y) = (4, 7)

Substituting these values in the equation,

7 = (3 × 4) + c

7 = 12 + c

c = 7 - 12

c = -5

Substituting m = 3 and c = -5,

y = 3x - 5

Hence, the equation of the line passing through the point (4, 7) and with a slope of 3 is y = 3x - 5.

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GUYS PLEASE HELP ME ive been struggling with this for the past 15 minutes

Answers

Answer:

Loading Answer...

Step-by-step explanation:

Loading Explanation...

The hardcover version of a book weighs 7 ounces while its paperback version weighs 5 ounces. Forty-five copies of the book weigh a total of 249 ounces.

A table titled Weight of Books showing Number of Books, Weight per book in ounces, and Total Weight in ounces. The first row shows Hard Cover, with h, 7, and 7 h. The second row shows Paperback, with 45 minus h, 5, and x. The third row shows Total, with 45, blank, and 249.
Which value could replace x in the table?

40 – h
50 – h
5(45) – h
5(45 – h)

Answers

Answer:

The Correct answer is D.) 5(45 – h)

Step-by-step explanation:

x can be replaced by 5(45 - h)

Tap the THANKS button and RATE ⭐️

Answer:

its d

Step-by-step explanation:

just took the quiz


help
determine the quotient of 1 and 1 over 3 divided by 3 over 5 . (2 points)​

Answers

Answer:

1/2 or  .5

Step-by-step explanation:

1/3 / 3/5=.5

Marie gets paid $ 2,000 monthly and a commission of 50 dollars for each sale she makes. Write an expression that represents her salary.

Answers

Answer:

2000+(50× x)

Step-by-step explanation:

The certain salary is 2000 but we do not know how much sale where made so the amount is placed as x inwhich will be multiples by 50 then added to 2000 to get total

This is about Desmos evidence, What does y equal?

Answers

Answer:

Uhm i think this is right

Step-by-step explanation:

y=mx+b

y=2

y=2x+2

Please this is a test !!!!!!!!!!!!

Answers

I think it’s A or the 1st one

Good luck

I will pick the brainiest answer!!! Thanks! :)

Answers

Answer:

For the first picture:

1) Right angle

2)Acute

3)Obtuse

For the second picture:

W) Acute

Step-by-step explanation:

What is f(-3) for f(x)=2x^2-x+5?

A).11
B).17
C).20
D).26

Answers

Answer:

20

Step-by-step explanation:

f(x) = ((2 • 32) -  3) +  5

f(x) = ((2•32) -  3) +  5

f(x) = 20

If this was helpful, mark brainliest. Have a beautiful day!

Lines k and I are parallel and cut by transversal j.


Which statement is a valid conclusion?

A.<6 and <7 are complementary

B. <4 and <8 form a linear pair

C. <1 and <2 are congruent

D.
<2 and <7 form vertical angles

Answers

Answer:

D.

<2 and <7 form vertical angles

What form is the equation below written in?
y= (x - 2)2 – 9

-Factored Form
-Standard Form
-Slope-Intercept Form
-Vertex Form

Answers

Answer:

            Vertex Form

Step-by-step explanation:

Vertex form of quadratic function with vertex (h, k) is y=a(x-h)²+k,

So  y= (x - 2)² - 9 is vertex form with vertex (2, -9)

need help finding the slope line through each apartment of points ​

Answers

Answer:

how are yall so smart bc im sittin over here like bruh these guys are smarter than enistain

Step-by-step explanation:

Answer:

8/-11

Step-by-step explanation:

m=y2-y1/x2-x1

16-8=8

9-20=(-11)

8/-11

hope this helps :3

if it did pls mark brainliest

What is the solution of the equation √2x-3-3=6?


A) 42
B) 39
C) 3
D) 6

Answers

Answer:

42

Step-by-step explanation:

√2x-3-3=6

√2x-3=6+3

√2x-3=9

2x-3=9^2

2x=81+3

X=84/2

X=42

So value of X is 42

After an injury, Greg's doctor advises him to slowly build up to his regular workout schedule, adding a certain number of minutes to his workout time each week. According to his doctor's advice, Greg should work out for 25 minutes in week 3 and 47.5 minutes in week 6. A. For how many minutes should Greg work out in week1? In week 10? Show your work.

Answers

Answer:

j

Step-by-step explanation:

Find cos(B) in the triangle

Answers

Answer:

what is the question

Step-by-step explanation:

5. Expand.
(a) 2(3x - 5y + 2)
(b)-3(4x + 5 – 2x2)
(c) 8(3a – 50+ 65)
(d) -4-3g + 2h- 7)
(e) 5041 - v + 2r2)
(f) -5(-x-y + 2)
(g) - 7(x2 - 2y2 + x)
(h) 12(a + 2b - 60 + 2)
Can someone explain how to expand these expressions

Answers

Answer:

A. 6x-10y+4

B.6x²-12x-15

C.24a+120

D.12g-8h+28

Find the number of​ real-number solutions of the equation below.
x2+7x−5=0

Answers

Answer:

12

Step-by-step explanation:

Answer:

x

=

7

69

2

,

7

+

69

2

Step-by-step explanation:

x

=

7

69

2

,

7

+

69

2

The value of a variable is fixed. True or false Explain:

Answers

Answer:

False

Step-by-step explanation:

rite an equation of the line with a slope of 3 and a y-intercept of 4.5.

Answers

Answer:

y = 3x+4.5

Step-by-step explanation:

10. Explain how proving two triangles congruent can help prove parts of the triangle congruent.

Answers

Answer:

if two angles r equal or sides r proportional

7th grade

Four different relationships are modeled in the tables.
Select the table that models a proportional relationship.

Answers

Answer:

the first one

Step-by-step explanation:

the equation for it is y=1.4x

What is the y-value of point A?

Answers

Answer: 1

The full term is (6,1)

Answer:

1

Step-by-step explanation:

Trust me on this, also can I have brainiest please?

Hope you do well! :D

plz help solve this. i need the answer asap

Answers

Answer:

6 cups per month

Step-by-step explanation:

divide 72 by 12

6cups per month divid

Pleaseee I really need help as soon as possible!!!!

Answers

Think of a strategy that works out best for you.
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