Mathematics Middle School

What are the values of A, B, and C in the equation –4x – 5y = 8?

Answers

Answer 1

Answer:  A.Slope = 1.600/2.000 = 0.800

B. x-intercept = 8/4 = 2

 C. y-intercept = 8/-5 = -1.60000

Step-by-step explanation:

Answer 2

Answer:

A = -4  

B = -5

C = 8

Step-by-step explanation:

Related Questions

Louis wants to carpet the rectangular floor of his basement. The basement has an area of 507 square feet. The width of the basement is 1/3 its length.

What is the length of Louis's basement?

plz help i stayed all night thinking about this but still it doesn't click in my brain

Answers

Divide 507 square feet by the width of the basement
507 ÷
1
3
=
1521
Calculation steps:

507 ÷
1
3
= 507 ÷
1
3
=
507
1
×
3
1
=
507 × 3
1 × 1
= 1521

HEY THERE PLZ HELP WITH THE EQUATION!!! THANKS IF U ANSWER
Suppose that a phone that originally sold for $800 loses of its value each year after it is released. After 2 years, how much is the phone worth? Write an equation for the value of the phone, , years after it is released.

Answers

Answer:

V=800-Y

V=Value

Y=years

do you guys know this?

Answers

Answer:

Step-by-step explanation:

The house is split into two cubes: The main house, and the "chimney"

The volume of the main part of the house is 20*20*21 mm=8,400mm cubed

The chimney's volume = 11*5*2mm = 110 mm cubed

Now, you just need to add them up.

8,400+110 mm cubed = 8,510 mm cubed

Which of the following expressions represent 15% tip on a $20 meal? Which represents the total bill? **Select all that apply**. Explain your reasoning for the choices you select.

A.) 1520
B.) 20+0.1520
C.) 1.1520
D.) 1510020

Answers

Answer:

15/100 * 20, because the meal is 20 dollars and to find the percent of something you divide it with 100 so you will divide 15 with 100 and you’ll get 0.15. Then you will times it with the amount the meal cost because thats the charge. So 0.15•20 and you’ll get $3. A 15% tip for a $20 meal is $3.

help pls it due today and i.d.k. what to do the one that said mean thats is the understanding o i but i dont understand it

Answers

to find the mean you add up all of the numbers that you see, then divide that total by the numbers you divided. in this case you would add 3+5+7+10+10+4+7+5+8+10+6. you should get 75. you added 11 numbers together so you would divide 75 by 11 to get 6.8
3+5+7+10+10+4+7+5+8+10+6=75

75/11=6.81

you add all the numbers together then you divide the answer by how many numbers you have


i hope this helps

Which of the following angles can be added together to create 177°? Explain your answer using words.

Answers

First you’d look for ones units that add up to 7, so in this case (5)4 and (6)3

Add 54 and 63 to get 117

Subtract 117 from 177 to get 60

25 and 35 equal 60 (I just know that from common knowledge I have no idea how to explain that in words)

So 25 + 35 + 54 + 63 = 177

Write the equation of the line in slope-intercept form using y=mx+b​

Answers

Answer:

y = 1/2x+2

Step-by-step explanation:

First find the slope using y1-y2 over x2-x1 picking two points, the two I am using are (0,2) and (2,3). Once I use the formula, the slope is 1/2. The Y intercept (b) is where the line intersects it. (0,2) You know it is the y intercept because the x coordinate is 0. So the final equation would be y=(slope)x+ (y-int) so FINAL ANSWER: y=1/2x+2

here is 1-12 of the assignment

Answers

1. 5m-6 m=7
5(7)-6
35-6
Answer: 29

2. 4m+t (t=2) (m=7)
4(7)+2
28+2
Answer: 30

3. r/t (r=8) (6=2)
8/2
Answer: 4

4. m*t (m=7) (t=2)
7*2
Answer: 14

5. 5t+2m
5(2)+2(7)
10+2(7)
10+14
Answer: 24

6. r*m
8*7
Answer: 56

7. 3m-5t
3(7)-5(2)
21-10
Answer: 11

8. m*r/t
7(8)/2
56/2
Answer: 28

10. n+16
The sum of a number n and 16.
11. 3.2n
The product of 3.2 and a number n.
12. 25.6-n

I know I already send this all to you, but if anyone else needs help here’s the answers.
Just read this guys ^
|

Meghan knows the volume of a cube and wants to calculate the surface area of the cube. Which would be the best first step for Meghan to use?

answer choices
dividing the volume by 6 to get the area of one face of the cube

dividing the volume by 4 to get the length of one side of the cube

finding the square root of the volume to get the area of one face of the cube

finding the cube root of the volume to get the length of one side of the cube

Answers

Answer:

finding the cube root of the volume to get the length of one side of the cube - this is the answer - Option D

Write an equivalent expression for (1.5 + k) +2.25

Answers

Answer:

k+3.75

Step-by-step explanation:

The equation can be simplified to k+3.75:

k+1.5+2.25

k+3.75

A flat-screen television costs $724.89 when it is new. The value of the television is expected to change by −12 3/5% per year. What is the expected value, to the nearest cent, of the television after 4 years?

Answers

653 no explanation needed it’s just 653

The solution is $ 422.98

The expected value of the television after 4 years is $ 422.98

What is exponential growth factor?

The exponential growth or decay formula is given by

x ( t ) = x₀ × ( 1 + r )ⁿ

x ( t ) is the value at time t

x₀ is the initial value at time t = 0.

r is the growth rate when r>0 or decay rate when r<0, in percent

t is the time in discrete intervals and selected time units

Given data ,

Let the initial amount of the television be x₀

The value of x₀ = $ 724.89

Now , value of the television is expected to change by -12 3/5 % per year

So , the exponential decay rate of the television is r = -12 3/5 %

The rate r = -63/5 %

The rate r = -12.6 %

The number of years t = 4 years

So , the exponential decay rate of the television after 4 years is calculated from the formula

x ( t ) = x₀ × ( 1 + r )ⁿ

Substituting the values in the equation , we get

x ( 4 ) = 724.89 ( 1 - ( 12.6/100 ) )⁴

On simplifying the equation , we get

x ( 4 ) = 724.89 ( 1 - 0.126 )⁴

x ( 4 ) = 724.89 ( 0.874 )⁴

x ( 4 ) = 724.89 x 0.583506543376

x ( 4 ) = $ 422.978

So , rounding to the nearest cent , we get

The value of x ( 4 ) = $ 422.98

Hence , The expected value of the television after 4 years is $ 422.98

To learn more about exponential growth factor click :

https://brainly.com/question/13674608

#SPJ2

Which comparison is not correct?
-8 < |-4|
|-2| < |-9|
|-7| > -9 |
8| > |-9|

Answers

Answer:

the 2 one is wrong

Step-by-step explanation:

the 2 would be greater than the 9 sense both the numbers are negative and the bigger the negative number is the less amount it is so -9 is smaller than -2

plz answer
WILL GIVE BRAINLIEST

Answers

Answer:

Its the number 3

Step-by-step explanation:

Answer:A

Step-by-step explanation:

Please give brainliest i only need a few more to rank up

12 gallons of water are used to completely fill 5 fish tanks. If each tank holds the same amount of water, how many gallons will each tank hold?

Express your answer as a mixed number.

Answers

Answer:

2.4 gallons/tank

Step-by-step explanation:

12/5=2.4 gallons

I think is 2 4/10 or 2 2/5 hope this helps

Find the area of the shaded region. Use 3.14 for π. Round to the nearest tenth if necessary. Whats the label?

Answers

Answer:

460

Step-by-step explanation:

yeg

Answer:

Step-by-step explanation:

3.14(10²) - 3.14(6²)

3.14(10² - 6²)

3.14(100 - 36)

3.14(64)

200.96

201

i think

It takes Marvin 2/3 of an hour to to mow 1/2 of his lawn. If Marvin continues mowing at the same rate, how long will it take him to mow his entire lawn?? ( Will mark brainliest)

Answers

Answer:

2/3-=40 minutes to mow half his yard

Step-by-step explanation:

80- minutes to mow full yard

Answer: 1hr 20 minutes

Step-by-step explanation:

hey if you can help that would be great

Answers

Answer:

C

Step-by-step explanation:

Just because

Answer:

758.4mm²

Step-by-step explanation:

5. Which would be a good first step to use to solve this system?



1st equation: y = 6x + 4

2nd equation: 5x + 2y = 12



A. Multiply the first equation by 2, and add the result to the second equation.

B. Substitute 5x + 12 for for y in first equation.

C. Substitute 6x + 4 for x in the second equation.

D. Substitute 6x + 4 for y in the second equation.

Answers

Answer:

d. substitute 6x +4 for y in the second equation

PLEASE HELPPPP!!!!!!

Answers

The correct answer is A no explanation needed it’s just A
It’s A those are the only outcomes it could possibly be.

Help me PLEASEEEEEEEEEEEE :C

Answers

Answer:

A. 525 in squared

Step-by-step explanation:

Fundamentally, the area of a parellelogram such as this can be calculated the same way the area of a normal rectangle is calculated: Length x Width.

Thus,

(27 + 8) x 15 = Area

35 x 15 = Area

525 = Area

Don't forget your units! (Inches squared)

Answer: The answer is 525

Please help i really need it really much

Answers

Answer:

1.5

Step-by-step explanation:

Assuming that you mean that Simon is scaling Logan's build, the scale factor is 1.5.

To find this, you divide Simon's fort height by Logans.

7.5/5 = 1.5.

Answer: 1.5
Steps: 7.5/5=1.5

i need help, this is over due and i need to get it done and I have no ide what I'm doing

Answers

Answer:

I have the answers, we did this homework.

The first question is B. The second question is D. The third question is C. And the fourth question is D. Hope this helped.

what is the answer 8s + 8 + 3st + 4s

Answers

Answer:

12s + 8 + 3st

Step-by-step explanation:

Combine like terms:

8s + 4s = 12s

8

3sr

Pls help due in 30 mins

Answers

Answer:

1. is 151 degrees

2. 45 degrees

3. M<G is 63 degrees

M<H is 27 degrees

14. 90 degrees

13. 36 degrees

Step-by-step explanation:

I hope that helped :)

1.151 degrees and 2 is the other ones

What is the area of a circle with a radius of 20 inches?

10π square inches
100π square inches
40π square inches
400π square inches

Answers

400pi square inches

Step-by-step explanation:

20×20×3.14= I got 1256 inches ²

Jaxon is creating a mosaic design on a rectangular
table. He has added two pieces to one of the corners.
The first piece has an angle measuring 38° and is
placed in the corner. A second piece has an angle
measuring 27° and is also placed in the corner. Draw a
diagram to model the situation. Then, write an
equation, and use it to determine the measure of the
unknown angle in a third piece that could be added to
the corner of the table.

Answers

Here are the answers

In triangle ABC, the measure of ∠ABC is 42°, and the measure of ∠BCA is 113º.
What is the measure of ∠CAB?

Answers

Answer:

25º

Step-by-step explanation:

   

Which equation will help you solve this problem?

You have 16 books and 2 shelves to store them.

If you split them equally between the 2 shelves, how many books will be on each shelf?

Answers

Answer:

8 books

Step-by-step explanation:

16/2=8

(/ is the division symbol)

Answer:

i literally salved this question earlier, the answer is 8

Step-by-step explanation:

:> I need hep with this math thingyyyyyyyyyyyy

Answers

A. 65 degrees F
Explanation:
to find the mean, add all numbers in the data set and divide the sum by how many numbers there are. using this formula, you get 65.

Answer:

65 is the answer

Step-by-step explanation:

17+39+29+81+87+99+103=455= A). 65

I hope this helps.

Answer the following questions.

Answers

Answer:

Where is the question to answer on the picture?

Answer:

1. $50,000

2. $75,000

3. $100,000

4. $125,000

sorry this is all I have

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