Mathematics Middle School

PLEASE ANSWER QUICKLY (16 points)

(08.01 MC)


Two lines, A and B, are represented by equations given below:


Line A: y = x − 4

Line B: y = 3x + 4


Which of the following shows the solution to the system of equations and explains why?

Answers

Answer 1

Answer:

X=-4, y=-8

Step-by-step explanation:

x − 4 = 3x + 4

x - 4 - 3x = 3x - 3x + 4

-2x - 4 = 4

-2x - 4 + 4 = 4 + 4

-2x = 8

-2x/-2 = 8/-2

x = -4

then insert -4 for x then solve the equations.

Related Questions

An air hockey table that normally sells for $158.99 is on sale for 75% of the regular price. What would be a reasonable amount for the sale price?

Answers

Answer: $119.24

Step-by-step explanation: 158.99 times 0.75 = 119.24

119.24
(Checked it with a calculator, is correct)

Plz answer these questions. If ur gonna answer answer them all or else i will report and u wont get brainliest.

Answers

Answer:

Step-by-step explanation:

Answer:

1: 1.5, a decrease

2: 5, decreases, 4.1, decreases, 4

3: 694, 708, other, faster

4: A, 45

5: B

Step-by-step explanation:

Surprised that I'm not stealing points?

two hot air balloons are traveling along the same path away from a town, beginning from different locations at the same time. Henry´s balloon begins 30 miles from the town and is 48 miles from the town after 2 hours. The distance of Tasha´s balloon from the town is represented by the function y= 8x +20.

which balloon was farther from the town at the beginning, and which traveled more quickly?

Answers

9514 1404 393

Answer:

  D.  Henry's started farther, went faster

Step-by-step explanation:

Henry's balloon traveled 18 additional miles (from 30 to 48) in 2 hours, so had a speed of 18mi/(2h) = 9 mi/h. The equation for his position could be ...

  y = 9x +30 . . . . . 9 is the rate of change; 30 is the initial value

__

Comparing this to Tasha's position function, we see her balloon started 20 miles from town and traveled 8 miles per hour.

__

Henry started farther from town and traveled faster.

Answer:Its A

Step-by-step explanation:

Jackson and Julie are babysitters.

The equation shows Jackson's hourly rate, and the table shows Julie's hourly rate.

Jackson's Babysitting Rate: y = 25x

Given this data,enter the difference (in dollars) between Jackson and Julie’s hourly rate?

Answers

Answer:

the difference is 70 I believe

Step-by-step explanation:

Little help pls. I don’t know the answer

Answers

Answer - 65.11

First find the area of the rectangle which is 5.5x7.7= 41.35
And then find the area of the small section of the circle using πr^2 and then divide it by 4 because it’s only 1/4 of the circle which will equal 23.768.. and add them together which will equal 65.11
I’m sorry if I’m not correct though I could be wrong
I agree, the answer is 65.11 :)

Is anyone willing to help????

Answers

Answer:1- supplementary 2-100

Step-by-step explanation:

50 POINTS WILL MARK BRAINLIEST

Answers

Answer:

The tower wall 10 meters tall.

It landed at 6 seconds.

The highest it got was 95 meters.

Step-by-step explanation:

Hope it helps.

Answer:

Thanks for the points

Step-by-step explanation:

The tower wall 10 meters tall.

It landed at 6 seconds.

The highest it got was 95 meters.

What are the steps of 5x+1+12x-8=180?

Answers

Answer:

Combine like terms: (5x+12x)+(1+−8)=180

17x- 7 = 180

Add 7 to both sides: 17x = 187

Divide by 17: x=11

Step-by-step explanation:

Answer:

x = 11

Step-by-step explanation:

First put all the number on one side so its easier to add them up.

add the x's then do the regular numbers.

5x + 12x = -1 + 8 + 180

17x = 187

Then simplify it. so 17 can go into 187 11 times.

X = 11

Hope this helps, have a great day! :)

what is question 3???????????

Answers

The answer would be 9

I need help with this math homework pls

Answers

-1/3, -1/5, 0, 1/8
u put the negative numbers to the left and positive ones to the right then since -1/3 is more negative than -1/5, -1/3 goes to the left and-1/5 goes next to it and then 0 and since 1/8 is the biggest it goes to the right
Since it’s negative the negative is the least but there two of them so you have to convert them to decimales
1/3 = .333333 and 1/5 is .2
So 1/3 goes first then 1/5
1/8 is .125 it’s larger than 0
So your answer is
1/8 0 1/3 1/5

The expression 5 1/2x + 6 represents the perimeter of

the rectangle shown. Write an expression that

represents the length of the rectangle

Answers

L=bxh|2 :) give me brainliest pls
Length=[ 5 1/2x + 6 - 2( 1/4x+2 ) ]*1/2
=[ 11/2x + 6 - 1/2x - 4 )*1/2
=( 5x + 2 )*1/2
=5x/2 + 1

Paul is 1/6 as old as his mother Mary now. In 20 years Paul will be half of Mary’s age then. How old is Mary now?

Answers

Answer:

40

Step-by-step explanation:

He is half so you multiply by 2

40
(Paul’s age)20*2=40

raj estimates that the length of his bicycle is 66 inches. is this reasonable? why or why not

Answers

U S E M A T H W A Y T R U S T

Solve the question below

Answers

Answer:

she earns 7 you this bye multiplying 5 bye 140 and get 700. the divide 700 by 100. and she earn 7 dollers in commision and that gets added to her paycheck i think

Answer:

she sold for $140

she earned 5% commission

5% = 0.05

140 * 0.05 = 7

Answer: she earned $7 by commissions on her sale

Hope i could help :D

Dont be scared to ask questions if you dont uderstand.

HELPPPPSSSSSS MEEE
(15 POINTS)

Answers

Step by step

I hope it helps

Answer:

B 216

Step-by-step explanation:

you need to mulimply and then do some I have no idea what I’m talking abou:)

Here is my question! first gets brainliest!!!! the question is in the picture,

Answers

Answer:

8 dimes, 15 quarters

Explanation:

The number of dimes=x

The number of quarters=x+7

So the value of each dime and quarter is 0.10 and 0.25

0.1x+0.25(x+7)=4.55

0.1x+0.25x+1.75=4.55

0.35x+1.75=4.55

0.35x+1.75–1.75=4.55–1.75

0.35x=2.8

0.35x/0.35=2.8/0.35

x=8

So the number of dimes there are is 8.

The number of quarters:

x+7

=8+7

=15

So, the number of dimes and quarters in this order are: 8 and 15.

11 quarters and 18 dimes!

which values from the set {1,2,3,4,5} make the inequality true?

Answers

Answer:

The answer is probably (1,2,3)

Step-by-step explanation:

If you add 1, 2, and 3 together you get 6 yes?

Then you would subtract 2, then you get the answer.

ARE YOU TAKING AN IREADY DIAGNOSTIC PLSSSS

A triangle has a base of 3 and 2/5 inches and an area of 5 and 1/10 square inches. Find the height of the triangle

Answers

Answer:

3.33 is the height of the triangle

anyone know how to complete this table need helpp asapp please

Answers

Answer:

Step-by-step explanation:

Ytigr

The y side of the table should be:

-4, 3, 10, 17, 24

Hope this helps:)

SMART PEOPLE, I NEED HELP PLEASE IM STRUGGLING !!!! EXPLAIN HOW YOU GOT YOUR ANSWER PLEASE!!

Answers

Answer:

Lets think about this We have 12 meters total Diego: 9 pieces × 0.4 meters= 3.6 metersSo diego used up 3.6 meters of ribbonPart A: 9-3.6=5.4 meters left To calculate the amount of whole number wreaths we do Part B: 5.4/0.6= 9 total wreaths I do exams and quizzes lmk if your interested!

What equation matches the table?

Answers

g = f + 10

The table is increasing by 10. Therefore the equation that represents this is
g = f + 10
Ok answer :88818288282828

The table below shows the amount a jacket would cost with various discounts.

What is the original cost of the jacket?

Answers

Answer:

somewhere near $100

Step-by-step explanation:

Jennifer has 12 pineapples in her lunchbox. For every pineapple she has 6 strawberries. How many pieces of fruit does Jennifer have in her lunchbox in total? ​

Answers

Answer:

84 pieces of fruit.

Step-by-step explanation:

I got this answer by doing 12*6 = 72, but this is not our final answer because we still have to add the pineapples which gives us 84.

Hope this helps!!

Answer:

78 pieces of fruit

Step-by-step explanation:

You have to multiply 6 and 12 to get the number of strawberries

12x6= 72

Then add the six pinnapples to 72 and you get 78

how many solutions does this have

Answers

Answer:

Infinitely many solutions

Answer:

Step-by-step explanation:

no solution ( sorry if its incorrect)

Is this relation a function?

Answers

Answer:

Yessssssss

Step-by-step explanation:

A function cannot be assigned more than one output for each input. Since each input has one output it is a function

SMARTIES PLEASE HELP!!!!!!!!!!!!!

Answers

Answer:

Your answer is 5.4 million km^2

I do quizzes and exams if your interested

Answer:

5.4 million km2

Step-by-step explanation:

I believe this is the correct answer

The length of a rectangle is 3 1/6 cm longer than the width. The perimeter of the rectangle is 15 1/3 cm. What are the width and length of this rectangle?
PLS HELP ASAP!!!!!!!!!!!!!!!!!

Answers

Answer:

12 1/6

Step-by-step explanation:

Help is needed thank

Answers

Answer:

the answer for this question is C because if it says greater or equal to -5 then it would be D or it it says it is smaller or equals to -5 to it would be B or if it says it is smaller than -5 then it would be A

Answer: C

Step-by-step explanation: If the dot is filled in that means it is equal to. and it is telling you where it is starting at.

What is the total surface area of this square pyramid?

A square pyramid. The square base has side lengths of 9 millimeters. The triangular sides have a height of 12 millimeters.

_____________ mm2
189
216
297
378

Answers

Answer: The correct answer is 297 (C)

Step-by-step explanation: I got it correct!!. Hope this helps :)

The area of a 2D form is the amount of space within its perimeter. The total surface area of the square base pyramid is 297mm².

What is an area?

The area of a 2D form is the amount of space within its perimeter. It is measured in square units such as cm2, m2, and so on. To find the area of a square formula or another quadrilateral, multiply its length by its width.

The total surface area of the square pyramid is the sum of the area of the triangles and the area of the base. Therefore, the total surface area is equal to,

Total surface area = Area of square base + 4(Area of a triangular face)

                               = (9mm)² + 4(0.5×9×12)mm²

                               = 81mm² + 216mm²

                               = 297mm²

Hence, the total surface area of the square base pyramid is 297mm².

Learn more about the Area:

https://brainly.com/question/1631786

#SPJ2

Can someone plz help me with this one problem!!!

Answers

Answer:

no

Step-by-step explanation:

No because -2 times -5 is 10 not 1.
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