Mathematics Middle School

The table below models the cost, y, of using a high-efficiency washing machine and a standard washing machine over x number of years.





Which equation represents the cost of the high-efficiency washing machine over a given number of years?

Which equation represents the cost of the standard washing machine over a given number of years?

After how many years of use would the washing machines cost the same amount?

Which washing machine would be the more practical purchase if kept for 9 years?

Answers

Answer 1

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The Table Below Models The Cost, Y, Of Using A High-efficiency Washing Machine And A Standard Washing
Answer 2

Answer:

1. A    y = 25x + 500

Which equation represents the cost of the high-efficiency washing machine over a given number of years?  

2. B     y = 30x + 400

Which equation represents the cost of the standard washing machine over a given number of years?  

3. D     20

After how many years of use would the washing machines cost the same amount?  

4. B      standard machine

Which washing machine would be the more practical purchase if kept for 9 years?  

Related Questions

© Sammy charges $21.75 for 3
hours of babysitting. The equation
y = 8x models the amount Claire
charges for x hours of
babysitting. Who charges less for
5 hours of babysitting and by how
much?

A. Sammy charges less by $0.75
B. Claire charges less by $0.75
C. Sammy charges less by $3.75
D. Claire charges less by $3.75

Answers

Answer:

Sammy charges less by $3.75

Step-by-step explanation:

givens

-Sammy: 21.75 for 3 hrs

-y=8x for Claire

-5 hours, and who charges less?

21.75/3

$7.25/hr

y=8(5)

y=$40

y=7.25(5)

y=$36.25

40-36.25

$3.75

whats is the answer to the equation 10+43

Answers

Answer:

53

Step-by-step explanation:

53.

easy way to do this is line up and add.

Calculate the slope of a line that goes through the points: (0, -3) & (-4, 2). Leave your solution as a simplified (improper) fraction.

Answers

Answer:

5/-4

Step-by-step explanation:

rise over run

y2-y1/x2-x1

2-(-3)/(-4)-0

Answer 5/-4 hope I helped

Help please?????? Mean and Median

Answers

Answer:

Mean: 10

Median: 11

Step-by-step explanation:

To find the mean you have to add up all the numbers then divide by how many there are.

E.g in 1,2,3,4 there are four numbers there so you add them all up and divide by 4

To find the median you have to sort out the numbers and put them in order of smallest to largest. Then you find the middle number.

E.g 2,3,1,4,5

You put them in order: 1,2,3,4,5

Then find the middle which is 3.

I hope you found this useful.

Answer: Mean is 9.111 and the Median is 5 I think.

Step-by-step explanation:

Mean= Add all numbers up then divide by how many numbers

Median= Numeric order, then count how many numbers, and then divide by 2 if its odd round up to nearest ones digit.

Plz help. Thank You!!!!

Answers

Answer:

1   31

2   31

3  53

4   53

5   15

6   15

7    9

8    9

9   27.5

10   27.5

Step-by-step explanation:

Help me pleasse it’s really late

Answers

Answer: x = 120 feet

Step-by-step explanation:

Cross Multiply:

3 feet x 40 yards = 1 yard x (x)

120 feet = 1x

x = 120 feet

BRAINLIEST I WILL GIVE

9 more than the quotient of -36 and 4

Answers

(-36/4) + 9
= -9 + 9 = 0
The answer is 0

Answer:

(-36+4)+9=-23

Step-by-step explanation:

Please Help!!! (15 Points)

Subject: Mathematics / Algebra
Grade Level: Middle School / 7th Grade
If editing needed, it will be found in the Comment Section.

Assignment:
DIRECTIONS: Convert each rational number to decimal, then indicate whether the decimal is repeating, or termnates in a zero.

1) 5/6
2) Does 5/6 repeat or termnate ?
3) 5/8
4) Does 5/8 repeat or termnate ?
5) 2/3
6) Does 2/3 repeat or termnate ?

Answers

1) 0.833
2) repeat
3) 0.625
4) terminate
5) 0.66
6) repeat

There are two different maps of California. The scale on the first map is 1 cm to 20 km. The distance from Fresno to San Francisco is 15 cm. The scale on the second map is 1 cm to 100 km. What is the distance from Fresno to San Francisco on the second map? Explain your reasoning and your work

***Note: I built two tables in one. There are two scales within this table. Use the first scale to find the actual distance, then use that to find the scaled distance on the second map.

Answers

Answer:

Sorry I cant help

Step-by-step explanation:

Answer:

sorry I do not know

Step-by-step explanation:

Which of the following graphs represent a function?

Answers

Answer:

c

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

The vertical line test determines if a graph is a function.

It's simple, if you draw a vertical line at any point at any point in the graph, the graph must only intercept it once.

A doesn't work

B doesn't work

C works

D doesn't work

PLEASE HELP ASAP!!!!!!!!!!

Answers

Answer: B

-3 x 4x = -12x
-3 x -0.50 = 1.50
-12x + 1.50

Hope this helped! :D

Answer:

-12x-1.50

Step-by-step explanation:

-3*4x=-12x

-3*0.50= -1.50

Factor the expression using GFC/Greatest common factor.

48y + 40x

Answers

48y + 40x factored is 8(6y+5x)

Answer:

8(6y + 5x)

Step-by-step explanation:

48y + 40x

GCF = 8

=8(5x + 6y)

-2.75 + 8.25 ? Help pls

Answers

The answer is 5.5!!!!

HELP WILL MARK BRAINLYESt

Answers

Answer:

i dont understand the problem, please explain to me what is going on?

Step-by-step explanation:

Evaluate:
(10-(6-4)^2)/2

A. -6
B. 0
C. 3
D. 10

Answers

Answer:

The answer is C-3

Step-by-step explanation:

Its 3. (10-(2)^2)/2
(10-4)/2=6/2=3

please help I have trouble answering these questions.

Answers

Answer:

Step-by-step explanation:

1. yes, it is proportional the reason for this is because when you divide both you get 9.25

2. the constant of proportionality is 9.25 and the equation is y=9.25x

what the other person said was correct

HELP PLEASE!!! I DONT UNDERSTAND

Answers

A is 10 and 12

C is 4 and 8

Answer:

a: 10,8,12,16

c:5,16,6,32

Step-by-step explanation:

it says half so apply that to the blansk bcause 5 is half of 10

What is 3y-4x=7 in slope intercept form?

Answers

Answer:
It’s 4x+3y-7=0

The equation of line is given by y = ( 4/3 )x + 7/3 , where the slope of the line is m = 4/3

What is an Equation of a line?

The equation of a line is expressed as y = mx + b where m is the slope and b is the y-intercept

And y - y₁ = m ( x - x₁ )

y = y-coordinate of second point

y₁ = y-coordinate of point one

m = slope

x = x-coordinate of second point

x₁ = x-coordinate of point one

The slope m = ( y₂ - y₁ ) / ( x₂ - x₁ )

Given data ,

Let the equation of line be represented as A

Now , the value of A is

3y - 4x = 7   be equation (1)

On simplifying the equation , we get

Adding 4x on both sides of the equation , we get

3y = 4x + 7

Divide by 3 on both sides of the equation , we get

y = ( 4/3 )x + 7/3

Now , it is expressed as y = mx + b where m is the slope and b is the y-intercept

Hence , the equation of line is y = ( 4/3 )x + 7/3

To learn more about equation of line click :

https://brainly.com/question/14200719

#SPJ2

plz, help a·a·b·b Write the expression using exponents.

Answers

a^2 x b^2

I’m sure that’s the answer. Hope this helped, I guess?

PHOENIX, Sept. 20, 2012—Arizona's new immigration law takes effect this week. According to the law, police officers must check the status of anyone who may be an undocumented immigrant. Officers have the right to decide who is checked under this law.


Which argument would a supporter use to show that this law is necessary?

A) all citizens are entitled to due process of law under the Fifth Amendment.


B) Birthright citizenship was granted in the United States only with the Fourteenth Amendment.


C) The First Amendment permits freedom of assembly by all people, including immigrants.


D) The U.S. Constitution gives states the right to make and enforce their own laws.

(This is history sorry)

Answers

Answer:

i think it is D

Step-by-step explanation:

hope this helps

B) ( sorry if i’m wrong )

help ? i’ll give brainliest.

Answers

Answer:

I think it's 15$

Step-by-step explanation:

Answer:

the answer is $15

Step-by-step explanation:

$1.20 / 8% = $15

Math 10 points,Easy i belive

Answers

Answer:

90 Degrees clockwise Rotation.

Step-by-step explanation:

Answer:

90 degree clockwise rotation

Step-by-step explanation: I 'm in the 8th grade and we already learned this. Hope this helps

btw can i have brainliest?:)

Plz Answer This Mathematics Question??? NEED HELP ASAP

Answers

Answer:

8

Step-by-step explanation:

8 × 8 = 64

That is the same thing as 8 ²

The answer for this question is 64

What is the slope of the line through (-1,2) and (-3,-2)?

Answers

i’m almost positive the answer is C

Answer:

The correct answer is just 2

Step-by-step explanation:

to calculate the slope of a line

y2-y1/x2-x1

-2-(2)/-3-(-1)= -4/-2= 2(because a negative divided by a negative equals a positive...

So your answer is 2

who doesn't learn anything because of this?

Answers

Answer:

MEEEE LOL!

Step-by-step explanation:

Please solve the problem answer the question and but your answer down below thx!

Answers

Answer:

I'm sorry but I need points.

Step-by-step explanation:

This is worth 15 points! Whoever helps gets brainlest.

Answers

Answer:1:25

Step-by-step explanation:

Answer:

1 :25

Step-by-step explanation:

25 is the difference in between, and 25 is the cost for 1 shirt.

Graph a line that contains the point...

Answers

Answer:

y=4x+15

Step-by-step explanation:

4=slope

15=y-intercept

Select the fraction, decimal, or percent that is NOT equivalent to the others.
0.60
6%
0.6
18.
Select the fraction, decimal, or percent that is NOT equivalent to the others.
25%
1/25
0.25

Answers

Answer: 6% and 1/25

Explanation. 6% is 0.06 as a decimal and 1/25 is .04 as a decimal and 4%
So 6% in decimal form is 0.06 and 1/25 is .04 in decimal witch it then would be 4%

I need an answer and explanation. A student spends the same amount each week for bus fare. In 5 weeks, he spends $115. Which equation shows this relationship? Let x = the number of weeks.
a. y=3.22x
b. y=5x
c. y=23x
d. y=115x

Answers

Answer:

b

Step-by-step explanation:

Answer:c.y=23x

because A student spends the same amount each week for bus fare => in each week, he spents:  115 : 5 = 23 ($)

with x = the number of weeks, the equation shows this relationship is y = 23x

Step-by-step explanation:

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