I Need Help Plz And Thank You And Show All Work And Steps. THIS IS DUE

Solve each system using the substitution method. Show all work and steps.

4.5.1) 2x-5y=8
x=3y-1


A. Substitute the equation that is already solved for one variable into the other equation.


B. Solve for the single variable in the one-variable equation.


C. Substitute the result from the previous step into x=3y−1 and solve for the unknown variable.


D. Write the solution as an ordered pair. E. Check the solution with the equation not used in Step C.

Answer:

This table does represent a proportional relationship because the sale price and original price are going up at the constant rate of 10

Step-by-step explanation:

The equation of line is y = -x + 25 and the constant of proportionality is 5

A line's equation is written as y = mx + b, where m is the slope and b is the y-intercept.

Furthermore, y - y1 = m (x - x1).

y = second point's y-coordinate

y1 = point one's y-coordinate m = slope x = point two's x-coordinate

x1 = point one's x-coordinate

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

Given the data,

Let the line equation be written as A.

The value of A is now

Let P be the initial point ( 15 , 10 )

Let's call the second point Q. ( 25 , 20 )

The slope of the line is now m = (y2 - y1) / (x2 - x1).

m slope = [tex]\frac{(20-10)}{(25-15)}[/tex]

m slope = [tex]\frac{-10}{10}[/tex]

m slope = -1

The equation for the line is now y - y1 = m (x - x1).

y - 10 = -1 ( x - 15 )

Simplifying the equation yields y - 10 = -x + 15.

We get y = -x + 25 by adding 10 to both sides of the equation.

So, if the selling price x is $10, the original price y is $ 15.

Hence , the equation of line is y = -x + 25 and the constant of proportionality is 5

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Answer:

11/24 is left over

Step-by-step explanation:

1/6 + 3/8 = 13/24

24/24 - 13/24 = 11/24

11/24 of the budget is left over

Hope this helps

Answer:

$2.00

Step-by-step explanation:

Just change 250% to a decimal. It becomes 2.5. Then divide 5 by 2.5.

5 / 2.5 = 2!

Hope this helps!

You would do

5-(-2)-6-3

5x-2=-10

-10-6-3

and you would get -2

Answer:

[tex]-\frac{20}{33}[/tex]

Step-by-step explanation:

We have to use the slope formula: [tex]\frac{y2 - y1}{x2 - x1}[/tex]

1/6 is y2, -1/4 is y1, -5/16 is x2, and 3/8 is x1.

[tex]\frac{1/6-(-1/4)}{-5/16-3/8}[/tex]

[tex]\frac{1/6+1/4}{-11/16}[/tex]

[tex]\frac{5/12}{-11/16}[/tex]

Now lets put these fractions in a different form and divide them.

[tex]\frac{5}{12}[/tex] ÷ [tex]-\frac{11}{16}[/tex]

[tex]\frac{5}{12}[/tex] × [tex]-\frac{16}{11}[/tex]

[tex]\frac{5}{3}[/tex] × [tex]-\frac{4}{11}[/tex] = [tex]-\frac{20}{33}[/tex]

[tex]-\frac{20}{33}[/tex] is your answer. I hope this helps! Let me know if I made a mistake or if you have any questions :)

Answer:

-1528 1/5

or if you need it as improper,

-7641/5

Answer:

-15 1/5 your welcome

Step-by-step explanation:

Answer:

Step-by-step explanation:

each pencil costs $1.29 so just add that 5 times. when we do that it equals $6.45

if you can buy 12 notebooks for $19.73,

and then BIG FAT BUT IN SCREEN BIG BUTT

Answer:

2.73

Step-by-step explanation:

Product means the answer to the multiplication problem, where 7 and 0.39 are the factors, and you need to find the answer, which is the product. So, just multiply 7 and 0.39, and you’ll get 2.73. The product of 7x0.39 is 2.73

Hope this helps! :)

Answer:

1.   J=20, f= 28, H=42

2. 240 + 241 + 242 = 723

Step-by-step explanation:

J= 30- 12= 18+2= 20

F= 30-2=28

H=30+12=42

2.

240 + 241 + 242 = 723

Answer: your answer is 16/15

Step-by-step explanation:

Answer:

16/15

Step-by-step explanation:

Answer:

I believe it would be the second one i'm not exactly sure.

Step-by-step explanation:

Answer:

y= 1 1/2

Step-by-step explanation:

Answer:

is it multible choice?

Step-by-step explanation:

Answer:

2

Step-by-step explanation:

the second choice

Answer:

The second choice I think

Step-by-step explanation:

Answer:  The inequality is   x/3 [tex]\leq[/tex] 4   and   x [tex]\leq[/tex] 12

Step-by-step explanation:

The quotient of x and 3 is the same as x/3  and the at most sign is less than or  equal to. x/3 has to be  less than or equal to  4 which can be represented by the inequality,

x /3 ≤ 4            Solve for x by multiplying both sides by 3.

x ≤ 12

Answer:  x/ 8 < -2           and x< -16

Step-by-step explanation:

A numer x is divided by 8  is the same as   x/ 8   and x/8 has to be the less than  -2  so it will be    x/8 < -2  

x/8 < -2   TO solve the inequality, multiply 8 on both sides  to get

x < -16

The solution of expression is,

⇒ x < - 16

We have to given that,

An algebraic expression is,

''a number x divided by 8 is less than -2''

We can write as,

⇒ x / 8 < - 2

Solve for x,

⇒ x/8 < - 2

Multiply by 8;

⇒ x < - 2×8

⇒ x < - 16

Therefore, The solution of expression is,

⇒ x < - 16

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Answer:

Step-by-step explanation:

The answer is 1.25 kilometers a minute.

The number of packages bought by Grayson is represented by the expression 6x=y.

The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.

Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.

Given that Grayson bought s sponges. There were 6 sponges in each package.

The expression for the number of the packages Grayson bought will be written as,

y = 6x

Here, y is the number of packages and x is the number of sponges.

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Answer:

45,000,000 information could be transmitted in 30,000 packets

Explaination:

b=1500p

p= 30,000

so,

b= 1500 x 30000 = 45,000,000

Answer:

1- 20 packets for this one you have to divide 30,000 by 1,500

2- 45,000,000 bytes for this one you have to multiply 1,500 by 30,000

3- so if each byte is 8 bits of information and 1,500 bytes equal one packet than each packet equals 187.5 bits of information and if you have 30,000 packets than there will be 3,750 bits of information the equation is the number of bytes in a packet divided by the number of bits of information in a byte which is 1,500/8 = 187.5 and the amount of packets you have you divide it by 8 because it is the number of packets divided by the number of bits of information

(did this help?)

Answer: 270 and on the Second page is 50

Step-by-step explanation:I think that’s correct

Answer:

270

Step-by-step explanation:

that is 90% of 300

Answer:

162.06

Step-by-step explanation:

sorry i'm not the best an explaining but i'm confident in my answer.

the first thing to do is get rid of the ² in x²+y²=24, we do this by √24 which ≅4.90 (i rounded to the hundreth place)

then we have this

x-y=6

x+y=4.90

I am using the elmination method. To do that you need to get two letters to have the same coefficient (in 4x 4 is the coefficient) with oposite signs (one possitive one negitive)

In our equation here we see that the same coefficient is 0, and there is oposite signs for y. Therefore we can add the two equations and get

2x=10.9 (the y cancels out)

now we have a simple equation and all that is left is to solve it

10.9/2=5.45

x=5.45

Now we need to find y we do that by pluging the x value into one of the equations I choose the first one becasue its easiest.

(5.45)-y=6  

y= - .55

now that we have both x and y plug them into the final equation (5.45)³-(-.55)³= 161.89-(-.17) =162.06

Therefore x³-y³≅162.06!

(if you have any questions or would like to debate the answer please let me know!)

Answer:

Step-by-step explanation:

Answer:

216 x 10 13 (13 is the number that goes above of the 10)

Step-by-step explanation:

Multiply 8.1 x 10. 81

Multiply 4.5 x 10. 45

Add 81 + 45. 216

Add the scientific notions (8 + 5) . 13

216 x 10 13

Hope I helped!