Mathematics Middle School

If the answer to a maths question is 4,
John says the answer is -- 4x + 4 + 7x = 48
Mike says the answer is -- 2x + 3 = 11
Henry says the answer is 8x + 7 = 71

Then who is/are correct? Is anyone wrong? Show workout.

Answers

Answer 1

Answer:

John and Mike are correct.

Step-by-step explanation:

If The Answer To A Maths Question Is 4,John Says The Answer Is -- 4x + 4 + 7x = 48Mike Says The Answer

Related Questions

What is the RANGE of this data set? (3, 6, 3)

Answers

Answer:

Range = 3

Step-by-step explanation:

The range is the difference between the largest and smallest value in the data set. So, 6 - 3 = 3 is your answer.

The range is 3, I ended up looking it up

I need help on this I'm not good at math

Answers

Answer:umm thats

Step-by-step explanation:

just go the line that goes across thats x and the line that goes down thats ur y

Help plzzzzzzzzzzzzzz

Answers

Answer:

Part A:

Answer B)

Part B: maybe acute, not totally sure, sorry :(

Step-by-step explanation:

Help me please! First answer and correct gets brainlist!
4. Carlos rolls a number cube twice.
(a) What are all the possible combinations for the two rolls? Use an organized list.
(b) What is the probability of rolling a 1 and a 2 when order does not matter? What is the probability of rolling a 1 on the first roll and a 2 on the second roll?

Answers

Answer:

1,2

2,4

1,3

1,4

2,3

3,4

4,5

1,5

2,5

3,5

1,6

2,6

3,6

4,6

1/6 chance if rolling a one

1/6

There are two students Mark and John.
If John scored 1050 in his test and received 70% and John received Mark received twice as less as John, then what is?
a) The total marks
b) the marks obtained by John and Mark.

Answers

Answer:

a

Step-by-step explanation:

calculate the sum and enter it below

Answers

Answer:

2

Step-by-step explanation:

Answer:

2

Step-by-step explanation:

Instead of adding just subtract since its a negative

Find the slope of the line​

Answers

Answer:

-2/3x

Step-by-step explanation:

To find the slope, you would do rise/run.

To get to one point to the other, you move 2 units down and 3 to the right.

Hope this helps!

2/-3 because rise(going up) Over run(going horizontally) it goes up 2 and over to the left 3 making it negative because it goes left.

A store bought 200 toys at a cost of ​$20 each. The store sold all the toys at a percent markup of 30%. Find the total selling price.

Answers

Answer:

5200

Step-by-step explanation:

200x20=4000

30% of 4000 is 1200

4000+1200

Answer:

5200  

Step-by-step explanation:  

200×20=4000  

30% of 4000 is 1200

4000+1200=5200

Arthur brought $32 to the carnival. He bought a hotdog, a t-shirt, and a ticket. The hotdog was 1/2 as much as the t-shirt. The t-shirt was 1/2 the cost of the ticket. Arthur had $2.25 leftover. What is the cost of each of the 3 things?


please no link

Answers

Answer:

$8.50,$17,32

Step-by-step explanation:

Answer:

Hotdog: $4.25

T-shirt: $8.50

Ticket: $17

Step-by-step explanation:

It finally let me post as an answer :)

If we call the price of a hotdog x, the cost of a t-shirt is 2x, because 1/2 of 2x is x, right?

So a hotdog is x, a t-shirt is 2x, and a ticket is twice that again, so 4x.

x + 2x + 4x + 2.25 = 32

He bought a hot dog, a t-shirt, and a ticket, had 2.25 left over, with a total of $32

x + 2x + 4x + 2.25 = 32

subtract 2.25 from both sides, combine like terms:

7x = 29.75

divide both sides by 7,

x = 4.25

hotdog = 4.25

T-shirt is 2x, so $8.50

ticket is 4x, so $17

4.25 + 8.50 + 17 + 2.25 = 32

Help please and thank you. :-)

Answers

Answer:

3/4 * 10 = 7 1/2

Step-by-step explanation:

To find the answer you just have to multiply the 3/4 yards needed per pillow by the number of pillows, which in this situation is 10.

10 because it would divide

What is the perimeter of the triangle?
units

Answers

Answer:

36 units

Step-by-step explanation:

there is 12 units at is base and 9 as its height

you have to use the Pythagorean theorem to find the hypotenuse

c= √(a^2+b^2)( be being 12 and a 9)

plug it in and get c=√(81+144)=√225=15

perimeter is a+b+c

now that we have c do 12+15+9

=36

It is 36 I got you:)))

Billy and Sam started with the same number of baseball cards in their collections. Billy collected 3 cards per week and now has 29 cards. Sam collected 2 cards per week and now has 20 cards. Let x represent the number of cards they began with, and let y represnt the number of weeks. Which system of equations represents this situation?

Answers

Answer:

x+3y=29

x+2y=20

Step-by-step explanation:

x+3y=29
x+27=20
These are the two equations for the given problem

PLEASE HELP!! I'M GIVING ALL MY POINTS!! I'LL ALSO GIVE BRAINLIEST IF U DO ALL ANSWERS.

Answers

For shape A, it’s simply length x height.
So, that would be 9.2cm x 11.3cm= 103.96

For shape B, it’s base x height = area.
So, that would be 8 1/2cm x 11cm = 93 1/2

For shape C, you have to multiply the height and by the base and then divide by 2:
8cm x 14.5cm = 116 divided by 2= 58

For shape D, it’s 112cm.
You add the two bases together and then multiply by height. Then divide by 2.

Then simply put all the numbers from greatest to least.

Consider this linear system:
3x − 2y = −2
x + 3y = 14

Which ordered pair is the solution to the system?
A) (2, 4)
B) (2, −4)
C) (−2, 4)
D) (−2, −4)

PLEASE HELP I WILL GIVE BRAINLEST TO WHOEVERS RIGHT

Answers

Answer: A

Step-by-step explanation:

points

answer: A) (2, 4) :))

Which is a reasonable conclusion from the information presented in the bar graph?


A. Illinois had more electoral votes in 2000 than in 1980.
B. Most of the states had more electoral votes in 1980.
C. Most of the states had more electoral votes in 2000.
D. Arizona had the largest increase in electoral votes.

Answers

Answer:D. Arizona had the largest increase in electoral votes.

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

Please do not post inappropriate stuff like pic of your self I have a answer with a girl that has a pic of her self please please do not do that

A bag contains 3 red, 2 blue, 5 yellow, and 2 green marbles. What is the probability of choosing a red marble and then a blue marble

A. 5/23
B. 1/22
C. 5/21
D. 1/24

Answers

Answer: D. 1/24

Step-by-step explanation:

3+2+5+2=12 marbles total

Probability of choosing red marble is 3/12 and probability of choosing blue marble is 2/12

Multiply 3/12 * 2/12 = 6/144

Simplify to get 1/24 by dividing too and bottom by 6.

What is the width of this rectangular prism if the volume is 162 cm cubed?
A. 3 cm.
B. 3 cm. squared
C. 3 cm. cubed
D. 108 cm.

Answers

Answer:

A 3 cm

Step-by-step explanation:

Volume is lxwxh, 6x9= 54, and 54x3=162

Answer: 3

Step-by-step explanation:

The equation for volume of a rectangular prism is lwh. We have the lh and 6 times 9 is 54. Now we just divide 162 and 54 and that's the width which is 3. And to double check 3 times 9 times 6 is 162 :)

All of the following expressions simplify to -5x + 7, except ( x - 2) - (6 x - 9) (5 x + 1) - (-10 x + 6) -4 x + 2 x + 7 - 3 x (4 x + 3) + (-9 x + 4)

Answers

Answer:

(-4x+2)+(7-3x)

Step-by-step explanation:

it would give you -7x+9 I believe the others all equal -5x+7

When 3 subtract from one third of a number n, the result is less than 6. Whitehall inequality and solution represent this situation?

Answers

The answer is:

n > -9

best ne gets brainlyest

Answers

Answer:

Step-by-step explanation:

Answer is 113,04

Step by step exploration

d=12=>r=12/2=6
A= πr^2=3.12*36= 113,04

plz help me plzzzzzzzzzzzzzzzz

Answers

Answer:

6(4 + 5)

Step-by-step explanation:

You are supposed to use reverse distributive proper and pull out the greatest common multiple. Since 6 both multiply's 4 into 24 and 5 into 30 we can pull that out and we are left with this:

6(4 + 5)

Answer should be 6(4+5) hope that helps

Which graph represents all of the solutions of 3n–15≤ -3?

Answers

Answer:

B.

Step-by-step explanation:

Jorge baked cookies for his math class's end-of-year party. There are 29 people in Jorge's math class including Jorge and his teacher. Jorge baked enough cookies for everyone to get 2 cookies each. How many cookies did Jorge bake? Use the variable c to represent how many cookies Jorge baked.

Answers

Answer:

Step-by-step explanation:

c=  29*2

why 29*2? because the problem says that jorge baked 2 cookies per person, so we multiply 2 times 29

c= 58

C = 58 hope that helped

Can someone help me with my homework for free it won’t let me put my question?

Answers

Answer:

yes I will help you first tell your class

PLEASE HELP ME! ASAP! Thank you!

Answers

Answer:

He was a bad judge of character (I think, been a while.)

PLEASE ANSWER THE QUESTION BELOW​

Answers

the answer would be B.
y=mx+c

“m” represents the gradient and “c” represents the y intercept

Answer: “A”

Note: Your teacher will grade your response to ensure that you receive proper credit for your answer.
7. The graph below shows the number of new clients brought into Sunnydays Insurance Company. Why is the graph misleading?

Answers

Answer:

It is not starting at 0

Step-by-step explanation:

If it doesn't have a starting point you can't be sure of the pattern unless you check at every point. If it's not starting at 0, no correct answer

Is the following number rational or irrational?
0.3π

Answers

Answer:

Anything that has to do with pie is irrational

Step-by-step explanation:

Any pie number is irrational because pie is a never ending number hope this helps

Answer:

Personally i think it is irrational

Step-by-step explanation:

I think it is because it is a low number

(Middle school math) please help, thank you!

Answers

Answer:

what's is the he question

Step-by-step explanation:

?

What’s the problems?

Realice los siguientes ejercicios de Proporciones
a) 1/16 = 7/x
b) 1/3 = x/9
c) 2/5 = x/15
d) 6/9 = 5/x
e) 78/9 = 39/x
Ayuda por favor :(

Answers

Answer:

ytfdjyuguuc

Step-by-step explanation:

yfullk;ljknlm

Other Questions
jogging burns 21 calories in 10 minutes determine how many calories are burned per hour? Custodian at Movie Theater pay:$9.95 per hours: 15.25 hours per week how much do they make in a-week_month_year_ guyz wart is 1+1? i'm haveing troubal with my hiztorie homwok Which of the following is most likely the next step in the series Stephanie spent $16 on product and supplies for a lemonade stand. She charged $2 for a cup of lemonade. The graph below can be used to represent Stephanie's profit, y, after selling x number of cups of lemonade. Differences found in offspring? 20 POINTS!!!!! Find the corresponding point on the unit circle for the given radian measure.0=7pi/6 the creation of israel in 1948 has had which of the following impacts Describe the mode of formation of metamorphic rocks Jesus deposited $10,000into a savings account.He gets 0.1% in interestover 5 years. What is thetotal amount in interestthat Jesus gets? Answer fast Use the net to determine the total surface area270 in310 in 330 in 350 in What is the volume?????? The Ballantyne area has 200 people over the age of eighty-five living in it of these people, 56 of them have a dog, 24 of them have a cat, and 16 of them have both of a personis chosen at random, find the probability that they have a cat, if it is known they have a dog.a. 1/2b.3/7c.2/7d.2/25 someone please helppp 5/7 2/3=?Is it A?Is it B?Is it C?Or is it D? What would make oppositely charged objects attract each other more?increasing the positive charge of the positively charged object and increasing the negative charge of thenegatively charged objectdecreasing the positive charge of the positively charged object and decreasing the negative charge of thenegatively charged objectincreasing the distance between the positively charged object and the negatively charged objectmaintaining the distance between the positively charged object and the negatively charged object For anyone who has read Chengli chapter 7 PART A: How are the details of the traveler's staff important tothe development of the text's theme?A It resembles a snake which is associated with sin and evil.B It takes on different appearances, showing how deceptiveevil is.C It is intricately decorated, proving the traveler's wealth andpower.D It can be used as a weapon and hints at the danger of thetraveler Your sister, Katia, has recently become pregnant. While you're excited, you are also concerned about Katia's health due to herpoor eating habits. What advice would you give to Katia to help her improve her eating habits and nutrition? Describe specificfoods/nutrients that she should add into her diet and why. A 1x3 matrix times a 3x2 matrix, gives a product that is a (I need both 7 and 8)