Solve problem using substitution
a = 3b + 1
5b - 2a = 1

Answers

Answer 1
Solve for the first variable in one of the equations, then substitute the result into the other equation.

a=−13, b=−5
Answer 2
Hope this helps you !!!

Related Questions


PLZ HELP DUE AT 12

Answers

Answer:

The first one would be m^30n^20p^30  

And the second one would be a^2 / d^4  

Step-by-step explanation:

For 1, you have to multiply the inner exponents by the outer one so you get (m^12n^8) times (m^18n^12p^30). Then you mutiply the two together, so you add the exponents, where you get m^30n^20p^30.

For 2, since you're dividing, you have to subtract the exponents so you get a^2d^-4, but since you shouldn't have the negative you turn it into a^2 / d^4

Hope this helps :)

pls help it’s timed loll

Answers

Answer:

A

Step-by-step explanation:

2.2*4 = 8.8

8.8+1.7= 10.5

Answer:

The answer is A 2.2

Step-by-step explanation:

2.2×4=8.8

8.8+1.7=10.5

Pasha traveled 217 miles in 3.5 hours, how far does she travel in 1 hour

Answers

62 miles 217/3.5 to get mph then mph is 62 so every hour they travel 62 miles

Which of the following best represents the dependent quantities in the graph below?

A. 2, 20, 4, 40
B. 2, 4, 6, 8
C. 20, 40, 60, 80
D. 10, 20, 30, 40, 50

Answers

Answer:

C

Step-by-step explanation:

Dependent quantity = y-value

Simplify the expression ​

Answers

Answer:(6-[tex]\sqrt{7}[/tex][tex].^{2}[/tex]

Step-by-step explanation:Ignore the point, put it withou the point

sjsjsnbebdbwhhahshhwhwhw

Halp aspp


give brialest​

Answers

Answer:

Cant see the full photo {error}



In a secondary school there are 40 classes altogether.
8 of the classes are Year 7 classes.
What fraction of the classes in the school are Year 7?
Give your answer in its simplest form.

Answers

So it would be 8/40. And in its simplest terms would be 1/5

Find x+y, if: 2x+3y=8 and 3x+5y=13

Answers

Answer is x = 1 & y = 2
the answer can be found using math-way

HELP 30 POINTS
In 2001, 36,500 people attended a public concert. The attendance at the annual event has decreased by 3% each year since. Which equation models the attendance, y, at the event x years after 2001?
A.
y = 36,500 – 0.03x

B.
y = 36,500(0.97)x

C.
y = 36,500(0.03)x

D.
y = 36,500(1.03)x

Answers

The answer is A. Y= 36,500(1.03) ^x

It’s pretty obvious so there’s the answer. Good luck have fun.

what is the first step to solving 9z-21=60​

Answers

add 21 to both sides, so you get 9z = 81

Answer:

add 21 to both sides

Step-by-step explanation:

9z-21=60

9z-21+21 =60+21

9z=81

9z/9=81/9

z = 9

Find the area of the triangle shown

30 mm
14 mm
13 mm

(The figure is not to scale.)
The area of the triangle is ?

Answers

Answer:

91

Step-by-step explanation:

the formula for a triangle is base x height divided by 2

so the base is 13 and the height is 14

multiply 13 and 14 then divide by 2

13 x 14 = 182/2= 91

On Monday Ravi drives for 4 hours.
His average speed is 30 mph.
How far does Ravi drive on Monday?

Answers

Answer:

Step-by-step explanation:

On Monday Ravi drives for 4 hours.

His average speed is 30 mph.

How far does Ravi drive on Monday?

Answer:

120

Step-by-step explanation:

i dont know why they deleted the other person answer,but this IS correct.

Where will Jack and Nolan meet​

Answers

I got 2.8 and 5.4 because they don’t directly meet where I graphed it.

help me with maths :)

Answers

sin J: 5/13, 0.38
cos J: 12/13, 0.92
tan J: 5/12, 0.42

sin K: 12/13, 0.92
cos K: 5/13, 0.38
tan K: 12/5, 2.40

A bag contains 25 cards bearing number 1, 2, 3 …., 25 respectively. One card is drawn at random. What is the probability that number is divisible by 3?​



pls help

Answers

Answer:

8/25

Step-by-step explanation:

there are 8 numbers from 1 - 25 that are divisible by 3 because 25/3 = 8.3333..

Written out these would be:

3,6,9,12,15,18,21, and 24

so you ahve 8 out of a total of 25

Can someone help me with this please I need help

Answers

Answer:

This is linear.

Step-by-step explanation:

Its because it has a constant rate, no sudden changes.

Answer:  Linear

Step-by-step explanation:

This is linear because when graphed it is straight.

A student is building a parallelogram- shaped deck with a base of (4x + 3) feet and a height of (3x - 2) feet. Which polynomial represents the area of her deck in square feet? (A.108)
F (12x2 + x - 6) square feet
G (7x + 1) square feet
H (12x2 + x - 5) square feet
J (7x2 + x - 6) square feet​

Answers

Answer:

F

Step-by-step explanation:

see attached image above

Answer:

Step-by-step explanation:

the area will be

A=(4x+3)(3x-2)

A=12x^2-8x+9x-6

A=12x^2+x-6

There are 2 cats to 5 dogs. Which of the following is an equivalent ratio of cats to dogs?

Answers

Answer:

See below.

Step-by-step explanation:

The ratio of cats to dogs would be 2/5. This is the simplest ratio, but I assume you are looking for other ratios that are equal to 2/5

Since you did not provide choices to pick from, I can't really answer your question. But, some ratios that are equal to 2/5 are 4/10, 6/15, 8/20, and 10/25.

Select all the ways you can tell that there is no solution to a system of equations.
A. The equations have different slopes and have the same y-intercepts.
B. The equations have the same slope and have different y-intercepts.
C. The graph of the system shows the same line.
D. The graph of the system shows parallel lines.
E. The graph of the system shows perpendicular lines.
THERE CAN BE MORE THAN ONE ETC ANSWERS

Answers

Answer:

b and d

Step-by-step explanation:

The ways you can tell that there is no solution to a system of equations are:

B. The equations have the same slope and have different y-intercepts.D. The graph of the system shows parallel lines.

A linear equation is represented as:

[tex]y = mx+c[/tex]

Where:

m represents the slopec represents the y-intercept

When the equations in a system of linear equation has the same slope, then the equations are parallel, and they have no solution.

Hence, the true statements are (b) and (d)

Read more about systems of linear equations at:

https://brainly.com/question/14323743

Malala is following this recipe for bread rolls.
She uses 500 mL of water.
How much of each of the other ingredients does she use?

Recipe: Makes 15 bread rolls
480 g flour
12 g salt
6 g yeast
30 mL oil
600 mL water

Answers

Answer:

500ml water

400 g flour

2 g salt

5 g yeast

25ml oil

Step-by-step explanation:

Lee performed the best on stage because the other contestant were not as confident as (him, he)​

Answers

Answer:

him or he was

Step-by-step explanation:

The point (2, 18) is an ordered pair in a proportional relationship. What equations represents this relationship?


y = 1/9x

y = 18x

y = 9x

y = 2x

Answers

Answer:

y = 9x

Step-by-step explanation:

If you plug in the point into each equation, you get:

y = 1/9x

18 = 1/9 * 2

18 = 2/9

not true

y = 18x

18 = 18 * 2

18 = 36

not true

y = 9x

18 = 9 * 2

18 = 18

true, so this is the answer

y = 2x

18 = 2 * 2

18 = 4

not true

PLEASE WILL GIVE BRAINLIEST
Match these men with their accomplishments.

1. the Native American chief who helped Smith Cartier
2. established San Diego La Salle
3. discovered Mississippi River De Bienville
4. founder of New Orleans De Soto
5. first explored the St. Lawrence River Marquette and Joliet
6. founder of Quebec Portola
7. claimed Atlantic coast for England Cabot
8. claimed New York area for the Dutch Powhatan
9. explored parts of the Mississippi for France Hudson
10. sailed the Mississippi to the Gulf of Mexico Champlain

Answers

1. 3rd last option

2. 6th one

3. 4th one

4. 3rd one

5. 1st one

6. Last one

7. 7th one

8. 2nd last option

9. 5th one

10. 2nd one

Sorry i have to write like this. Brainly is not allowing me to write answers. Please mark brainliest

Find the slope (-2,1)and (1,2.5)

Answers

Answer:

.5

Step-by-step explanation:

slope = rise/run= 1.5/ 3= 0.5

hope that helps if it does please mark as brainliest.

Sales associates at an electronics store earn different commission
percentages based on the items they sell. The table shows the total
sales and commission earnings for four sales associates at the
electronics store last month.


GIFTING EXTRA POINTS

Answers

Answer:

how am i gonna solve the equation if i cant see the actual chart?

Step-by-step explanation:

slope is 2/3 y- intercept is -2

Answers

Answer:

y = (2/3)x - 2

Step-by-step explanation:

The equation of this line is y = (2/3)x - 2, where m is the given slope and -2 is the given y-intercept.  We need only plug in the given values for m and b.

Answer:

[tex]y = \frac{2}{3} x -2[/tex]

Step-by-step explanation:

This is the slope-intercept form. The slope-intercept form is written as y = mx + b where m is the slope and b is the y-intercept. The y and x stay as they are.

I hope this was what you were looking for.

Can someone please help me out with this

Answers

Answer:

hope it helps

Anthony Tedesco sold his used mountain bike and accessories for $294 if he receive six times as much money for the bike as he did accessories find how much money he received for the bike

Answers

Answer:

$252

Step-by-step explanation:

294 * 6 / 7 = 252

Spencer bought 3 books of stamps and mailed a package. It cost 4.50 to mail the package. Define a variable and write an expression to represent the total amount he spent at the office.

Answers

Does the question have a picture or Anything?

Can someone please help me with my math corrections?​

Answers

Answer:

Step-by-step explanation:

y = 2x + 3         {y = mx + b}

In Function A, rate of change is 2

Function B:

Rate of change = Change in y÷ change in x

                         [tex]= \frac{11-7}{0-[-1]}\\\\=\frac{11-7}{0+1}\\\\=\frac{4}{1}\\\\= 4[/tex]

In function B, rate of change is 4

Least: Function A

Greatest: Function B

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