y=3X - 7 and 4x -5y= -20

Answers

Answer 1

x = 5 and y = 8

Step-by-step explanation:

y = 3x - 74x - 5y = -20

Subtitute the value of y to second equation :

4x - 5y = -20

4x - 5(3x - 7) = -20

4x - 15x + 35 = -20

-11x + 35 = -20

-11x = -20 - 35 → (multiplied by -1)

11x = 20 + 35

11x = 55

x = 5

Subtitute x to one of Equation :

For example i take from First Equation…

y = 3x - 7

y = 3(5) - 7

y = 15 - 7

y = 8

So, the value of x = 5 with y = 8


Related Questions

I need help please I need to turn it in tomorrow at 8:00 AM

Answers

Answer:

The estimate is too low

Step-by-step explanation:

46×6=276 which isn't a very close estimate. However if you used 46×7=322 the estimate would be OK. Now if you used 46×8=368 that would be too high of an estimate here. In simpler terms 1 to 6 is too low of an estimate here and 8 to 9 is too high of an estimate. The number 7 is the middle ground here. Hope this helped.

Given f(x) and g(x) = f(x) + k, use the graph to determine the value of k.

Answers

x is constant .

Count the boxes each as 1.

Its easier to calculate on y axis.

f(x) intersected at -2g(x) intersected at 3.

[tex]\\ \sf\longmapsto k=3-(-2)[/tex]

[tex]\\ \sf\longmapsto k=3+2[/tex]

[tex]\\ \sf\longmapsto k=5[/tex]

Answer:

• For g(x), consinder y-intercept (0, 3)

• For f(x), consinder point y-intercept (0, -2)

[tex] \hookrightarrow \: { \tt{g(x) = f(x) + k}}[/tex]

• substitute using coordinates above:

[tex]{ \tt{3 = - 2 + k}} \\ \\ { \tt{k = 3 + 2}} \\ \\ { \boxed{ \tt{ \: \: k = 5 \: \: }}}[/tex]

help Perform the indicated operation.

(-7) · (-5)

-12
-35
12
35

Answers

Answer:

35

Step-by-step explanation:

(-7) • (-5)

= 7 • 5

= 7 + 7 + 7 + 7 + 7

= 14 + 7 + 7 + 7

= 21 + 7 + 7

= 28 + 7

= 35

[tex] [/tex]

Convert 56∘F to ∘C.

Round to one decimal place and do not include units in your answer.

Answers

What formula are you using I'm using the one below so hopefully you're able to utilize this.

C = (F-32) ÷ 1.8

C = (56-32) ÷ 1.8

C = ( 24 ) ÷ 1.8

C = 13.3333333

Rounding one decimal place (tenths)

C = 13.3

Solve each equation 5(-8+5k) +5k=-250

Answers

Answer:

k = 7

Step-by-step explanation:

-40+25k +5k = -250

30k = -250 + 40

k = -210/30

k = 7

Graph the function (x) -7x^2

Answers

Answer:

See Picture

Step-by-step explanation:

I hope this helps!

Robert must read a few books from his home library. He read 4 out of 6 books from the top shelf, 2 out of 3 books from the miidle shelf, and then 3 out of 6 books from the bottom shelf. In how many ways can Robert read the books

Answers

Answer:

13

Step-by-step explanation:

I don’t know I did it in my head

Question 6(Multiple Choice Worth 1 points)
(05.03 LC)
What is the initial value of the equation shown?
y = - 4x - 3
0-4
0-3
03
04

Answers

For that I got -3/4


1) Convert 0.469 dam to cm.

Answers

the answe is 469 CM!

The price of a technology stock has risen to $9.66 today. Yesterday's price was $9.53. Find the percentage increase. Round your answer to the nearest tenth of a percent

Answers

Answer:

0.13

Step-by-step explanation:

Yep sorry again this math is hard

Answers

Answer:

<

Step-by-step explanation:

Firstly, you can focus on the scientific notation and calculate which one is bigger. The left side is [tex]10^3[/tex] whereas the right side is [tex]10^4[/tex]. This shows that even if the number before this was bigger, the larger exponent of these two are the bigger number.

[tex]10^3 = 1000\\10^4 = 10000[/tex]

Meaning the correct sign would be the smaller than sign (<) as the right side is bigger than the left.

Hope this helps!

Two numbers have a sum of 24
and a product of 143. What is the
smaller number?

Answers

Answer:

The smaller number is 11.

Step-by-step explanation:

11 + 13 = 24

11 x 13 = 143

Hope this helps!

The smaller number is 11

Translate each graph as specified below.
(a) The graph of y=f(x) is shown. Translate it to get the graph of y=f(x) - 4.
(b) The graph of y=g(x) is shown. Translate it to get the graph of y=g(x - 2).

Answers

Answer:

1

Step-by-step explanation:

1

The answers are :

a) The graph is translated downwards by 4 units.

b) The graph is translated downwards by 2 units.

What do you mean by translation of a graph ?

The modification of an existing graph or graphed equation to create a different version of the following graph is known as translation.

a)

The graph of y = f(x) is shown.

The other function is y = f(x) - 4.

As it can be observed that the graph is translated from its parent function which is y = f(x) to function y = f(x) - 4.

The graph is shifted down by 4 units or translated downwards by 4 units.

b)

Here , the graph of y = g(x) is shown.

The other function is y = g(x -2)

As we can observe that the graph is translated from its parent function which is y = g(x) to function y = g(x - 2).

The graph is shifted downwards by 2 units or translated downwards by 2 units.

Therefore , the answers are :

a) The graph is translated downwards by 4 units.

b) The graph is translated downwards by 2 units.

Learn more about translation here :

https://brainly.com/question/12861087

#SPJ2

Solve for x:
11) 2(x + 4) = 18

Answers

Answer:

x = 5

Step-by-step explanation:

2 (x + 4) = 18

x + 4 = 9

x = 5

Answer:

x=5

Step-by-step explanation:

2(x + 4) = 18

Divide each side by 2

2/2(x + 4) = 18/2

x+4 = 9

Subtract 4 from each side

x+4-4 = 9-4

x=5

Website
1. Orbitz.com
2. Mypoints.com
3. Americangreetings.com
4.Bizrate.com
5.Half.com
Average daily unique visitors
1,527,000
1,356,000
745,000
503,000
397,000
What was the total average number of visits for these websites?

Answers

905,600 visitors

I added each number up and divided them by 5 (the total number of websites) to get 905,600

Answer:

905,600 visitors

Step-by-step explanation:

added each number up and divided them by 5 (the total number of websites) to get 905,600

A triangle has side lengths 35 cm, 46 cm, and 68 cm.

What type of triangle is this?


scalene

isosceles only

equilateral

Answers

Answer: Scalene

Step-by-step explanation:

The triangle doesn't have any equal side

Answer:

This is a scalene triangle. Hope this helps.

Can someone help me solve x?

Answers

9514 1404 393

Answer:

  x = 1

Step-by-step explanation:

The diagram is intended to show you that the whole is the sum of the part:

  11 = (10x -1) +(2x)

  11 = 12x -1 . . . . . . . collect terms

  12 = 12x . . . . . . . . add 1 to both sides

  1 = x . . . . . . . . . . . divide both sides by 12

The value of x is 1. The lengths of the segments are 9 and 2.

can someone pls help me <33​

Answers

9514 1404 393

Answer:

  (a)  29/69

Step-by-step explanation:

It can help to be familiar with divisibility rules. Even numbers are divisible by 2, so the fraction 174/414 can immediately be reduced to 87/207.

Both numbers have a digit total that is divisible by 3, so each of these numbers can further be divided by 3, reducing the fraction to 29/69. The number 29 is prime, so this fraction cannot be reduced further.

The reduced fraction is ...

  made shots/attempts = 174/414 = 29/69

__

Additional comment

As is often the case, a calculator can help you identify arithmetic expressions that have the same value (are equivalent).

  174/414 ≈ 0.42028986

  29/69 ≈ 0.42028986 . . . . same value

  87/207 ≈ 0.42028986 . . . . same value, but 29/69 is reduced

  17/41 ≈ 0.41453415 . . . . . not equivalent

  14/46 ≈ 0.30434783 . . . .not equivalent (and not reduced; both numbers are even)

Please help me answer this question

Answers

Answer:

option D is right answer

i.e. _

BC

Determine whether the equation below has a one solutions, no solutions, or an infinite number of solutions. x-8=8-x

Answers

Hello!

Answer:

One solution (8)

Step-by-step explanation:

Hope this helps!

Please help!!!!!!!!!!!

Answers

Answer:

1. x=3

2.x=-14

3.x=13

4.x=-15

5.y=4

Step-by-step explanation:

What is the domain and range

Answers

Answer:

The domain is the travel on the x-axis of the graph and the range is the travel on the y-axis of the graph.

Step-by-step explanation:

how do you solve the following equation?

10-s=34

Answers

Answer:

-24

Step-by-step explanation:

10-s=34

collect like terms

10-34=s

s=-24

The lines given by the equations y = 2x and y= 2x + 1 are
A. Parallel
B. Perpendicular
C. Neither Perpendicular nor parallel

Answers

A. is the answer i’m pretty sure

Can someone help me please :)

Answers

9514 1404 393

Answer:

  (d)  y = 2×7^x

Step-by-step explanation:

If you try x=2 in each of the expressions, you find only one of the gives 98 as the value.

  a) 14^2 = 196

  b) 7×2^2 = 28

  c) 2^(7×2) = 2^14 = 16,384

  d) 2×7^2 = 2×49 = 98 . . . . . . . correct answer choice

__

Alternatively, you can recognize that the x-values in the given (x, y) pairs differ by 1, so the ratio of y-values will be the base of the exponential term:

  98/14 = 7

so you're looking for something of the form 7^x. That would be ...

  y = 2×7^x

__

In more general terms, consider

  y = ab^x

If you have x=1 and x=2, then this will be ...

  y1 = ab^1 = ab

  y2 = ab^2

Dividing the second by the first gives ...

  y2/y1 = (ab^2)/(ab) = b . . . . . . . general solution when x-values differ by 1

  98/14 = b = 7

From the x=1 case, we have ...

  14 = 7a   ⇒   a = 2

  y = 2·7^x

solve include real and non real solutions.
x^2-8=0

Answers

Answer:

[tex]x=+2\sqrt{2} and-2\sqrt{2}[/tex]

Step-by-step explanation:

[tex]x^2-8=0[/tex]

[tex]x^2=8[/tex]

[tex]\sqrt{x^2} = \sqrt{8}[/tex]

[tex]x=2\sqrt{2}[/tex]

plus or minus

How to find the frequency for temperature in Fahrenheit

Answers

Answer:

Step-by-step explain

if you where in your house say that your house is set to 72F and you want to find out the Fahrenheit you take the 2 in 72 and multiply it by 3 so in that case it would be 6 then you take the 7 and subtract 1 which makes it 6 So the Fahrenheit is 66.

Hi, I really need help on this, please help me, no scam links.

Answers

Answer:

560 cm^3

Step-by-step explanation:

To find volume you will have to multiply all three, length, width and height of an object to determine the answer.

In this problem, 7 cm * 20 cm * 4cm = 560 cm^3

Write the point slope form of a line that passes through (1,-5) and is perpendicular to a line with a slope of 1

Answers

Answer:

y + 5 = -1 (x - 1)

Step-by-step explanation:

y = -1

y + 5 = -1 (x - 1)

How many average points per game did Denver score?

Answers

So Denver scored 3/4 as many as Dallas so:
3/4 x 26 3/5
If we make 26 3/5 an improper fraction it becomes
133/5
133/5 x 3/4 =
(133 x 3)/(5x4)=
399/20 average points
Which as a mixed fraction is:
19 19/20
Can I get brainliest answer.
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