A pair of equations is shown below:

y = 7x − 8
y = 5x − 2

Part A: Explain how you will solve the pair of equations by substitution or elimination. Show all the steps and write the solution.

Part B: If the two equations are graphed, at what point will the lines representing the two equations intersect? Explain your answer

Answers

Answer 1

Answer:

Part A) If would probably be smart to use substitution because y is already solved for, so we can substitute the value of y as a function of x into the other equation.

y=7x-8

y=5x-2

7x-8=5x-2

   +8     +8

-----------------

7x=5x+6

-5x  -5x

----------------

2x=6

/2   /2

-----------

x=3

y=7x-8

y=21-8

y=13

Part B) The lines will intersect at point (3, 13)

Step-by-step explanation:

hope this helps

so sorry if this is wrong

did this for hw

Answer 2

Answer:

Step-by-step explanation:

part a:

substitution

7x - 8 = 5x - 2

2x - 8 = -2

2x = 6

x = 3

y = 7(3) - 8 = 21 - 8 = 13

y = 13

Part b.

(3, 13)


Related Questions

Please fast brainly I give brainliest

Answers

Answer:

Options 1 and 2 are the ones that need the direction of inequality reversed.

Step-by-step explanation:

Give that man brainliest

There are 287 basketball fans who plan to go to a game. How many buses will be needed, given that each bus can hold 34 fans?

Answers

Answer:

9 buses will be needed but 9 bus will be empty there will be very small amount of fans in the 9th bus.

9 buses.
Explanation:
We divide the number of basketball fans by the number of fans that can be accommodated by the bus. We get 8.4
Since we cannot cut the bus into 0.4 we add another bus so that everyone will get to go.
Another method is
Multiply 8 buses by 34 fans. We get 272 fans will be able to go to a game.
This means that some fans will be left by the bus but our goal is to have everyone go.
And thus we need the 9th bus to carry the remaining 15 fans

ASAP! i need help it for a grade

Answers

Answer:

First box -3, 1

Second box -3, 7

Step-by-step explanation:

If they start at 4 on the y-axis, they can go down to 1 or go up to 7. Then we just add the -3 to the x axis.

Answer:

(-3,7) and (-3,1)

Step-by-step explanation:

You would move the point up or down one (this is because you are moving on the y-axis) which would only change y leaving x alone as -3. This means you would either subtract 3 or add 3 to 4 which gives you 1 or 7.

Please, I need help. This assignment is due in 20 mins

Mark spends 9 minutes walking to school and 9 minutes walking home each day. By the end of the school week​ (5 days), how many hours has Mark spent traveling between home and​ school?

Answers

Answer:

1 and a half hours

Step-by-step explanation:

9 minutes to and from school : 9*2 =18
18 minutes for 5 days: 18*5=90
minutes to hours : (divide by 60 to find hours) 90/60= 1.5

Good luck!

Answer:

Mark spent a total of 90 minutes traveling between home and school during the duration of 5 days

Step-by-step explanation:

9 x 2 = 18

18 x 5 = 90

Please help math 3 pages. Brainliest.

Answers

Answer:

Page 1:

1. 450

2.36

3.279

4.81

5.This would affect the final answers because then each section could have more or less students.

6.No, because if you don't know how many students are in one category then there is a very big array of different numbers that could be in that one category.

Page 2:

1.Less, because just by looking at the yellow section you can see that it does not cover at least half of the chart.

2. 48%

3.550

4.44

5.264

6.77

7.66

8.No because if you know the value of one category then you can't determine the other percentages because they could be anything.

Page 3:

1.42%

2.300

3.45

4.27

5.18

6.7 times more people said popcorn is their favorite movie snack than hot dogs.

7. I added the percentages I know and then subtracted that number from 100 to get the percentage of popcorn.

Step-by-step explanation:

I included the explanation for answers that required in the answer and this took a long time to complete. I hope I could help!

What is the circumference of the circle?

Answers

Answer:

A. 40.82 cenimeters

Step-by-step explanation:

hi ahahahahahahhaga well it also is just because it is a circle

Which statement correctly describe the data shown in the scatter plot?

The scatter plot shows no association.
The scatter plot shows a nonlinear association.
The point (16, 4) is an outlier.
The scatter plot shows a negative association.

A graph measuring variable y in relation to variable x. Multiple coordinates indicate a pattern of variable y decreasing as variable x increases

Answers

Answer:

The scatter plot shows a negative association.

Step-by-step explanation:

Brand XYZ dog food costs $36 for 15 pounds. How much would 24 pounds of dog food cost?

Answers

15 pounds = $36

1 pound = $36/15 = $2.4

24 pounds = $2.4 * 24 = $57.6

Answer: $57.6

Step-by-step explanation: hope this helps

A) -2x + 5 + 10x - 9
B) 3(x + 7) + 2(-x + 4) + 5x

Simply A, and B.

Answers

Answer:

A - 8x=4

B - 6x+29

Step-by-step explanation:

I hope this helps

Answer:

A) 8x - 4
B) 6x + 29

Step-by-Step Explanation:

A) -2x + 5 + 10x - 9
= 8x + 5 - 9
=> 8x - 4

B) 3(x + 7) + 2(-x + 4) + 5x
= 3x + 21 + 2(-x + 4) + 5x
= 3x + 21 - 2x + 8 + 5x
= 6x + 21 + 8
=> 6x + 29

please help me with this asap!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Try the first four cards in order from left to right. It starts with the expression, plugs in 6 for t, does 6 * 3 first because of PEMDAS, and then does 27 - 18, which is 9.

Please help me (attachment)

PLease DO NOT FLAG it appilies to all the rules!

Answers

9) 46
10) 4
11) 46
12) 5.8
13) 36
14) 34
15) 9
16) 56
9) 46
10) 4
11) 46
12) 5.8
13) 36?
14) 34
15) 9
16) 56

What is -3x less than 12

Answers

Answer:

[tex]x < 4[/tex]

Step-by-step explanation:

In order to isolate the variable in this linear inequality, we need to get rid of the coefficient that multiplies it.

This can be accomplished if both sides are divided by 3.

3x /3 = 0x

12 /3 = 4

So the asnwer is x = 4 (don't forget the less than sign)

ANSWER = x < 4

The answer is X < 4 hope it helps !

PLEASE HELPPP In order to determine the best fit undergraduate program, a high school senior researches the majors offered at the universities he is considering for admissions. The internet search reports that Arizona State University lists nine of their most popular majors and the percent of student population enrolled in the programs.

Answers

Answer:

1. 2000

2. 1600

3. 24%

4. business marketing

5. 6000

A business has 4 humidifiers. The cost (in dollars) to buy and maintain the humidifiers for n weeks is represented by 520+32n . Write an expression that represents the cost to buy and maintain one humidifier for n weeks

Answers

1 humidifier is 1/4of the cost above
Answer:
1/4(520+32n)=130+8n

How many 5 number zip codes can be created if the first number cannot be one, three, or five, and each of the numbers must be different? (Hint: It may be helpful to list out the digits first.)

Answers

Answer:

67224

809

444

6722

908

Step-by-step explanation:

Answer: seven

Step-by-step explanation: tell me if correct pls

The following data points represent the number of songs of each member of the band python sun boat has written (Median)

Answers

Answer: Answer is 7

Step-by-step explanation:

I hope im right

3x + 1/4 y^2

What is the value of the expression above when x = 3 and y = 4? You must show all work and calculations to receive full credit.

Answers

Answer:

13

Step-by-step explanation:

3x+1/4y^2

just fill in the blanks

3(3)+1/4(4)^2

3(3)+1/4(4)^2 = 13
9+ 1/4 (4^2)
9+ 1/4 (16)
9+4 = 13

PLEASE HELP ASAP Nguyen has the following cans of soup in his pantry:
• 4 cans of chicken noodle soup
• 2 cans of tomato soup
• 3 cans of vegetable soup
• 3 cans of potato soup
He randomly chooses a can of soup for lunch. What is the probability that he
will choose chicken noodle soup?
A. 1/2
B. 1/6
C. 1/4
D. 1/3

Answers

Answer:

1/3

Step-by-step explanation:

I'm not sure but you get 4/12 you simplify and get 2/6 and you simplify again and get 1/3

Answer:

The answer is 1/4

Step-by-step explanation:

i did the quiz

PLEASE HELP ME I WILL GIVE BRAINLYEST

Answers

Answer: A

Step-by-step explanation:

Find the perimeter of the window to the nearest hundredth.

Answers

7.71 feet is your answer.

Veronica randomly surveyed a group of students to find out how they arrived at school each day; her findings are recorded in the table below. using the data from the table, estimate how many students drive to school if the total school population is 500 students.

Answers

Answer:

around 58 students drive to school

Step-by-step explanation:

8 + 7 + 3 + 42 = 60

7 students take the car to school

7/60 = 0.11666...

0.11666... x 500 = 58.3333

hope this helps

Answer:

around 58

Step-by-step explanation:

Help me with this Please.

Answers

35
the ratio for the two is 5:7 and you want to find _:49. to get from 7 to 49 you multiply the 7 by 7. because you did that to one side you have to do the same to the other and multiply 5 by 7 which gives you 35

A valley in California has an elevation of feet below sea level. A valley in Arizona has an elevation lower than the one in California. Which of these could be the elevation of the valley in Arizona? 3 feet 0 feet -5 feet -9 feet

Answers

The valley in California has an elevation of feet "below sea level".
Below sea level means below 0 feet, so it'd have -5 feet

The one in Arizona would be lower than it, so the elevation will definitely be -9 feet

i need help with the triangle. i would rather anyone tell me step by step so i can understand how to do it next time, thank you.

Answers

Answer:

Volume of triangular prism = 126

Volume of composite figure = 462

Step-by-step explanation:

The volume of a triangular prism is base area x height

Here the base of the triangular prism has sides 7(the vertical side) and 6(the horizontal side). The are of this base = area of the triangle = 1/2 * 7 * 6 = 21

(Area of a triangle is 1/2 x b x h where b is base and h is height)

The volume of the prism is simply this area x width = 21 x 6 = 126

To get the composite figure volume add the volume of the rectangular prism so we get 126 + 336 = 462

Answer:

126 cm³

Step-by-step explanation:

The volume of the triangular prism can be calculated using the formula below:

Volume of prism= base area ×height

Area of base

= area of triangle

= ½ ×base ×height

= ½(6)(7)

= 21 cm²

The height of the triangle is the same as the length of the 7cm side of the rectangle.

In this figure, the height of the prism is 6 cm.

Volume of triangular prism

= 21(6)

= 126 cm³

_______

Area of composite figure

= area of rectangular prism +area of triangular prism

= 336 +126

= 462 cm³

Triangles- Angles & Classifying
Instructions in photo!

Answers

Answer:

[tex]angle Q = about 45\\\\\\angle R= about 19\\\\angle S= about 127[/tex]

Looking at these angles, the type of this triangle is an obtuse triangle.

Step-by-step explanation:

First, sum up all the angles to 180 (because any triangle's angles sum up to 180).

[tex]4x-17 +x+5+10x-4 = 180[/tex]

Next, combine like terms:

[tex]15x -16 = 180[/tex]

Solve:

[tex]15x = 196\\\\x = 196/15[/tex]

After that, plug x into the angles equations

[tex]angle Q \\4*(196/15) -7 = about 45\\\\\\angle R\\196/15 + 6 = about 19\\\\angle S\\10*196/15 - 4 = about 127[/tex]

Since 127 is obtuse, this triangle is obtuse.

I hope this helps, but I am unsure if it is correct.

Please help me with this I would give you 50 points.

Answers

[tex]\bold{FULL SOLUTION:}[/tex]

A rectangular piece of glass is shown. The length is measured as 4 feet. The width is measured as 2 and one-half feet. What is the area? PLEASE HURRY

Answers

Answer:

10ft squared

Step-by-step explanation:

4x2 is 8. Plus half of 4. So 8+2=10. You're welcome (:

Answer:

10 ft^2

Step-by-step explanation:

4x2.5=

10 feet^2

What is the best way to describe the center of the data represented in this line plot? Select from the drop-down menus to correctly complete the statement. The Choose... is Choose... .

Answers

Answer:

Right of -7 and left of -1

-7 is in the left and -4 is in the right

-7<4

-4 in the left and -1 in the right

-4<-1

Step-by-step explanation:

if your doing the same question as i did then thats the answer

Answer:

Answer is The median is 2.5 inches so the answer is median and 2.5 proof Hope this helps

Step-by-step explanation:

help me please
i already did most of it

Answers

Answer:

2nd page 2nd question

Step-by-step explanation:

That they are both straight lines? Sorry again if I got it wrong ~Bread

Both of them are straight line so their is no solution until the line is not straight you will get the answer

can u help me understand this and solve it im so confused

Answers

Answer:

what is the topic?

Step-by-step explanation:

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