7 – Зу = 20
y = 5х – 4
QUICK! how do i do this i need the x and y this is the Systems of equations with substitution

Answers

Answer 1

Answer:

x=1/15 y = -4 1/3

Step-by-step explanation:

First combine like terms.

-3y = 13

y= -13/3

y= -4 1/3

Substitute for y in next equation

-4 1/3 = 5x - 4

5x = 4 1/3 - 4

5x = 4 1/3 - 4

5x = 1/3

x = 1/3 divided by 5

Since fractions can't be divided, multiply by the inverse

x = 1/3 times 1/5 = 1/15


Related Questions

eduardo works as an accountant for a consulting firm. he earns an annual salary of 68,090 and an annual bonus based of the firms preformance. this year eduardo will earn a bonus of 3% of his annual salary , which is 2,042.70. what is eduardos annual gross pay

Answers

Answer:

70.132,70

Step-by-step explanation:

68.090,00

+ 2.042,70

_________

70.132,70

URGENT PLEASE I AM TIMED URGENT SOLVE THE PROBLEM AND PLEASE, PLEASE EXPLAIN HOW YOU GOT YOUR ANSWER, GIVE DETAIL'S I WILL MARK AND 5 STARS

Answers

A recipe that makes 10 raspberry muffins calls for 1 1/4 teaspoon of baking powder
1.25/10=t/10 muffins
How much baking powder is needed to make 3 dozen
1.25/10=x/36
x=4.5 t for 36 muffins hope this helps <3

Answer:

x =  4[tex]\frac{1}{2}[/tex] teaspoons of baking powder

Step-by-step explanation:

I will use ratio, so for every 10 muffins we need 1[tex]\frac{1}{4}[/tex] or [tex]\frac{5}{4}[/tex]  teaspoons of baking powder.  How much would we need for 3 dozens or 36 muffins?

Set up the ratio in fractions

[tex]\frac{10}{\frac{5}{4}}[/tex] = [tex]\frac{36}{x}[/tex]; where x is the teaspoons of baking powder

solve for x

x =(36*[tex]\frac{5}{4}[/tex]) / 10

x = (45)/10 = 4[tex]\frac{5}{10}[/tex] = 4[tex]\frac{1}{2}[/tex] teaspoons of baking powder

can somebody solve this

Answers

Answer:

36

Step-by-step explanation:

Ansha drove 45 MPH (miles per hour). How far can she go in 3 hours?

Answers

Answer:

135 miles

Step-by-step explanation:

45 mph means if you steadily go 45 mph for an hour you will have traveled 45 miles. Therefore you multiply your speed by time (45*3) which gives you 135 miles.

I’m confused can someone help me please !

Answers

Step-by-step explanation:

= x + x -2+ 1 -2x

=2x-3- 2x

=3 ans

hope it help you.

Answer:

2+1=3-2x= -5+x+x =5x square

plzzz help ill name brainliest

Answers

Answer:

C is the anwser

Step-by-step explanation:

divide by flipping everything and rooting it.

Can someone help explain how I get the answer for this? S=R-rR solve for R

Answers

Answer:

s/(1-r)=R

Step-by-step explanation:

S=R-rR

S=R(1-r)

s/(1-r)=R

What is the volume of a hemisphere with a diameter of 41.6 m, rounded to the
nearest tenth of a cubic meter?

Answers

Answer:

Step-by-step explanation:

Given

diameter of 41.6 m

So radius =41.6/2= 20.8

Solution

volume of a hemisphere=4/3πr^2

=4/3×3.14×20.8×20.8

=5433.9584/3

=1811.319

So the answer is 1811.319 =1811(nearest 10)

Answer:18847.3

Step-by-step explanation:

g/h-x=Q

solve for g

Answers

Answer:

g=(q+x)/(h)

Step-by-step explanation:

you would 1st add x to the q

g/h=q+x

then you would divide the h from both sides

g=(q+x)/(h)

Graph the equation y=-x^2-4x+5y, on the accompanying set of axes. You must plot 5 points including the roots and the vertex. Using the graph, determine the roots of the equation -x^2-4x+5=0.

Answers

Answer: two points, 1,7

Step-by-step explanation:

The two points that are (1,0) (7,0) is the answer because they are the roots (x).

CD is parallel to FG and mZFED=126° and mZFCE=42º.
Find: a) mzAFG
b) m BEC
c) mcGFE
d) mzCFE

Answers

Step-by-step explanation:

a) 126°

b) 126°

c) 180-126 = 54°

d) 180-54-42 = 84°

Can someone simplify8x + 5x please

Answers

Answer:

13x

because you would comibne like terms, so you add the 8 and 5.

Answer:

x=0

Step-by-step explanation:

Simplifying

8x + 5x = 0

Combine like terms: 8x + 5x = 13x

13x = 0

Solving

13x = 0

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Divide each side by '13'.

x = 0

Simplifying

x = 0

Give your answer to the nearest tenth.

Answer Choices:

44


44.5


45


45.5

Answers

9514 1404 393

Answer:

  x = 44.5

Step-by-step explanation:

The angles defined by x will be supplementary when the lines m and n are parallel.

  (x +4) +(3x -2) = 180

  4x +2 = 180

  4x = 178

  x = 44.5 . . . . will make m and n parallel

Mr. Diaz bought a board that was 7 feet long. He cut the entire board into pieces that were LaTeX: \frac{1}{3}1 3 foot long. How many pieces did Mr. Diaz have ?

Answers

Answer: Mr. Diaz will have 21 pieces.

Step-by-step explanation:

Given, Length of the complete piece bought by  Mr. Diaz= 7 feet

Length of each piece cut = [tex]\dfrac13[/tex] foot

By division operation,

Number of pieces = ( Length of complete piece ) ÷ (Length of each piece cut)

[tex]=7\div\dfrac13=7\times3=21\ \ [\because a\div \dfrac{b}{c}=a\times\dfrac{c}{b}][/tex]

Hence, Mr. Diaz will have 21 pieces.

Describe a situation in which you could use scaling to solve a real-world problem.

Answers

Answer:

lol

Step-by-step explanation:

what the hell where I the question lol

Three friends went apple picking and then counted the apples they picked.

Who had the largest red to green apple ratio? Use complete sentences to explain how you got your answer.

Answers

Eli has the largest red to green apple ratio.


This is because his red to green apple ratio is equal to 1.25.


In order to determine that you take 20 and divide it by 16.

Carmen has the largest red to green apple ratio.

What is ratio?

The ratio is defined as the comparison of two quantities of the same units that indicates how much of one quantity is present in the other quantity.

here, we have,

from the given chart , we get,

the  ratio as,

Carmen= 20:12

            =1.6

Dylan = 12:10

          =1.2

Eli = 16:20

    =0.8

now, we have,

Carmen has the largest red to green apple ratio.

This is because his red to green apple ratio is equal to 1.6.

In order to determine that you take 20 and divide it by 12.

To learn more on ratio click:

brainly.com/question/13419413

#SPJ2

Freddy tiene $250 en billetes de diez dólares. ¿Cuántos billetes de diez dólares tiene Freddy? Le dio 6 billetes de diez dólares a su hermano. ¿Cuántos billetes de diez dólares le quedan?

Answers

Answer:

-Freddy tiene 25 billetes de diez dólares.

-A Freddy le quedan 19 billetes de diez dólares.

Step-by-step explanation:

Para encontrar la cantidad de billetes de diez dólares que tiene Freddy, tienes que dividir la cantidad total que tiene entre diez:

250/10=25

Esto significa que Freddy tiene 25 billetes de diez dólares.

Para saber cuantos billetes le quedan a Freddy, tienes que restar los 6 billetes que le dio a su hermano del total de billetes que tenía:

25-6=19

De acuerdo a esto, a Freddy le quedan 19 billetes de diez dólares.

Which numbers are integers
4

-3
42/6
-5.6
5.423
-54
98
54/6

Answers

4,-3,-54,98, 54/6, 42/6

Marta is buying 7 tickets from Ticket Buy at $13.79 each. If the broker charges $2.50 handling per ticket and $9.00 shipping, how
much is her total cost?
A)$123 03
B)$96.53
C)$177.03
D)$159.53

Answers

Answer:

123.03

Step-by-step explanation:

96.53+17.5+9=

Hmmmmmmmmmm helllo world my brain is broken and I need help :)

Answers

Answer:

fell that it would be C I'm pretty sure

Answer:

d

Step-by-step explanation:

If you drive 162 miles and use 9 gallons of gas, what is your rate?
Select an answer

Answers

Divide 162 by 9 so then yo get your answer

Hello everyone I need help with this worksheet it's ten problems answer the ones you know for me please it's homework.

I need help with finding the of two points.

1. (1,10) and (11,2)

2. (4,6,) and (-11, -4)

3. (-8, -6) and (-5, -6)

4. (-2, -7) and (10, -16)

5. (-8, 5) and (-20, 13)

6. (18, 14) and (0, 5)

7. (6, -2,) and (6,0)
8. (-5, 14) and (-3,11)
9. (-18, 16) and (2, -9)
10. ( 4, 6) and (1,2)

Answers

Answer:

1. Slope = -4/5

2. Slope = 2/3

3. Slope = 0

4. Slope = 3/-4

5. Slope = 7/-12

6. Slope = 1/2

7. Slope = -2/0 --> Undefined

8. Slope = 3/-2

9. Slope = 5/-4

10. Slope = 4/3

Step-by-step explanation:

Ok so I'm assuming that you want the slope for all the two points. Basically, the formula for slope is rise/run, or y2-y1/x2-x1. Solve using that. For example, for number 1, it would be:

10-2/1-11 = 8/-10 = -4/5

a hot air ballon is rising at a constant rate. the relationship between its height above the ground and the time since it left the ground is shown in the following graph

Answers

Answer:

C

Step-by-step explanation:

Khan academy .-.


Solve for g
8.95 – 5.4g = 3.81 – 9.58 – 8.69

Answers

Answer:

3

Step-by-step explanation:

Answer:

g=4.33

Step-by-step explanation:

8.95 - 5.4g = 3.81 - 9.58 - 8.69

-5.4g = 3.81 -9.58 -8.69 - 8.95

-5.4g = 5.77 - 8.69 - 8.95

-5.4g = -14.46 - 8.95

-5.4g = 23.41

-5.4/-5.4 =23.41/-5.4

g=4.33

Do you agree or disagree. Explain based on the table or graph!
The domain of the distance/time graph is all real numbers (real numbers are all positive and negative numbers as well as all fractions).
In what time interval is the distanced travelled the greatest?

Answers

Answer:

I disagree.............................................................................

Step-by-step explanation:

8 divided by 32.16?
I need help with this, please answer as fast as possible!!

Answers

The answer is 0.248756

ana buys a sweater for $25.60, and it is on sale for 35% off. what is the amount of the discount?

Answers

25.60(.35)= 8.96
The amount of the discount is $8.96

Answer:

16.64

Step-by-step explanation:

First times 25.60 by 35

Which is 896 then divide by 100

You should get 8.96

And then subtract it from 25.60

You get 16.64

therefore 25.60, 35% off is 16.64

What is the equation of the line that passes through the point (2,0) and has a slope of 5/2 ?

Answers

Answer:

y = [tex]\frac{5}{2}[/tex] x - 5

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Here m = [tex]\frac{5}{2}[/tex] , thus

y = [tex]\frac{5}{2}[/tex] x + c ← is the partial equation

To find c substitute (2, 0) into the partial equation

0 = 5 + c ⇒ c = 0 - 5

y = [tex]\frac{5}{2}[/tex] x - 5 ← equation of line

The equation of the line is the way of represent the line by the given point in the coordinate plane and the its slope.. Thus the equation of the line with point (2,0) and slope 5/2 is,

[tex]y=\dfrac{5}{2} x-2[/tex]

Given information;

The point of the line through which the line passes are (2,0).

The slope of the line is 5/2.

Equation of the line

The equation of the line is the way of represent the line by the given point in the coordinate plane and the its slope.

The standard form of the equation of the line for point and slope can be given as,

[tex](y-y_1)=m(x-x_1)[/tex]

Put the values,

[tex](y-0)=\dfrac{5}{2} (x-2)[/tex]

Solve it further;

[tex]y=\dfrac{5}{2} x-2[/tex]

Thus the equation of the line with point (2,0) and slope 5/2 is,

[tex]y=\dfrac{5}{2} x-2[/tex]

learn more about the equation of the line here;

https://brainly.com/question/2564656

pls help me is this right red devil is killing me

Answers

6x^2-48x-29 is the correct answer

Select all the zeros of the function f(x) = (x + 10)(x - 5)(x + 1).
- 10
0 - 5
- 1
0 0
1
5
010

Answers

Answer:

-10, 5,-1

Step-by-step explanation:

Set each parentheses to 0

x+10=0 then factor 10 over

x=-10

repeat

x-5=0 to x=5

x+1=0 to x=-1

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