Mathematics Middle School

I shall assist you with a question if you help me.

Answers

Answer 1

[tex]2x^2-3x-1 -(3x^2 +5x)\\\\=2x^2 -3x -1 -3x^2-5x\\\\=-x^2-8x-1[/tex]

Answer 2

Answer: B (-x^2-8x-1)

You don’t need to help me, by the way. :)

Hope this helped!!

Related Questions

I NEED HELP TMR IS THE LAST DAY TO TURN THIS IN

Answers

Answer:

9. the yellow bag

Step-by-step explanation:

Green bag=2.59/7=0.37Blue bag=4.56/12=0.38Yellow bag=6.30/18=0.35

0.35<0.37<0.38

I am only gonna help with this one cus I also have homework~sorry!!

For #9 the 18 ounce packet has the lowest cost per ounce
I know this because for the 7 ounce packet it is $0.37 per ounce, for the 12 ounce packet it is $0.38 per ounce and for the 18 ounce packet it is $0.35 ounce a packet. So the lowest is the 18 ounce packet.
I hope this helped.

Usually, when Landon makes bird food, he mixes 9 cups of seed with 6 tablespoons of maple syrup. However, today, he is short on ingredients. Describe a recipe that would make a SMALLER batch of bird food but still taste exactly the same.

Answers

Answer:

3 cups of seeds and 2 tablespoons of maple syrup

-OR-

6 cups of seeds and 4 tablespoons of maple syrup

Step-by-step explanation:

As this is a ratio of 9:6: "for every 9 cups of seeds, there is 6 tablespoons of maple syrup"

The original ratio is 3:2 "for every 3 cups of seeds, there is 2 tablespoons of maple syrup"

Using this ratio, we can infer that 3:2 or 6:4 would be a simpler answer for this problem. If there is doubt, it would be better to use 3:2 as it is the smallest ratio.

The ratio of cups of seed to tablespoons of maple syrup is 3:2 therefore these are an example to your question:
6 seed and 4 maple
pls make me brainliest

what is 78x85x99x1 i need helppp

Answers

Answer:

656370

Step-by-step explanation:

pa brainliest

Answer:

65630

Step-by-step explanation:

calculator

use fraction strips to find the sum. Write your answer in simplest form.

1/3 + 1/4

Answers

Answer:

7/12

Step-by-step explanation:

1/3 + 1/4

~Find common denominators

4/12 + 3/12

~Add

7/12

Best of Luck!

Answer:

7/12

Step-by-step explanation:

1/3 -> 4/12

1/4 -> 3/12

4/12 + 3/12 =7/12

Drag each bar to the correct location on the graph. Each bar can be used more than once. Not all bars will be used.

Ella surveyed a group of boys in her grade to find their heights in inches. The heights are below.
have a grate day and thx for helping

67, 63, 69, 72, 77, 74, 62, 73, 64, 71, 78, 67, 61, 74, 79, 57, 66, 63, 62, 71 ,73, 68, 64, 67, 56, 76, 62, 74

Create a histogram that correctly represents the data.

Reset Next

Answers

Answer:

Here is what I got...

Step-by-step explanation:

If you had taken the PSAT test can you tell me if it is hard, what topic is on it (especially math) and what happens basically?
I got an email saying it was for 8/9 grade and I'm in 8th. It is free for me and I'm wondering what I have to do. Do I need to make an account on psat.org or will my teacher send me a link to the test?

Answers

Answer:

Its relly hard trust me!

Step-by-step explanation:

i need help pls i’m not sure if it’s A or C

Answers

Answer:

its a

Step-by-step explanation:

Yea the answer has got to be A

what is the value of the expression ((9-5)2 - 1 ) divided by 3?

Answers

Answer:

Step-by-step explanation:

=(4^2-1):3=15:3=5

Answer:

Option C

Step-by-step explanation:

[{9 - 5}² - 1] ÷ 3

=> [{4}² - 1] ÷ 3

=> [16 - 1] ÷ 3

=> 15 ÷ 3

=> 5

Therefore, 5 is our answer.

The solution to 3(x – 8) + 4x = 8x + 4 is *
1. 12
2. 28
3. -12
4. -28

Answers

Answer:

-28

Step-by-step explanation:

Step by step

-28 is the solution of the equation 3(x – 8) + 4x = 8x + 4.

What is Equation?

Two or more expressions with an Equal sign is called as Equation.

The given equation is 3(x – 8) + 4x = 8x + 4

Three times of x minus eight plus four times of x equal to eight times of x plus four.

In the equation x is the variable, plus and minus are the operators.

Apply the distributive property

3x-24+4x=8x+4

Add the like terms

7x-24=8x+4

-28=x

Hence, -28 is the solution of the equation 3(x – 8) + 4x = 8x + 4.

To learn more on Equation:

https://brainly.com/question/10413253

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what is 16,524 rounded down to the preceding thousand

Answers

Rounded DOWN to the nearest thousand is 16000

so this is for khan academy and I would really like some help with it :)

Answers

Its slope so itll be 4/2 and thats 2

y/x=2

Step-by-step explanation:

Because y=2 and x=4, we would do 4 divided by 2 (2/4=y/x) To get 2

pllz answer Masterson Wood Products pays Patricia Griffin a $640 monthly salary plus a 11% commission on merchandise she sells each month. Assume Patricia's sales were $72,900 for last month.

Answers

Answer:

$8659

Step-by-step explanation:

Patricia's sales = $ 72,900

Her commission = 11% of $72,900

= 11/100 * 72,900 [ % means out of 100 and of means to multiply ]

= 11 * 729

= $ 8019

Her monthly salary = $640

Her monthly salary along with commission = $640 + $8019

= $8659

[tex]\rule[225]{225}{2}[/tex]

Hope this helped!

~AH1807

Answer:

1307 is the commission plus the monthly salary so it would be

$640+$1307=2247

Step-by-step explanation:

Answer is $2247

Graded Assignment Unit Test, Part 2:

Unit 5 Answer the questions below. When you are finished, submit this assignment to your teacher by the due date for full credit.

Be sure to include your work and WRITTEN Explanation

Juan wants to buy a video game for $63. He saves $12 every Friday.

How many Fridays will it take for Juan to save up enough money for the video game?

Answer: Show your work and explain!

Answers

Answer:

Step-by-step explanation:

if you divide the 63 by the 12 it would be 5.25 so it would take 6 fridays to save up!

Juan needs $63. He gets 12 every Friday.

1) divide 63 by 12 = 5.25

Answer :6

2x - 8x + 1 = 49
this seriously makes no sense

Answers

Answer:

x = -8

Step-by-step explanation:

2x - 8x + 1 = 49

⇒ 2x - 8x = 49 - 1

⇒ -6x = 48

⇒ x = [tex]\frac{48}{-6}[/tex]

= -8

Answer:

X = -8

Step-by-step explanation:

Add similar elements: 2x-8=6x

-6x+1=49

Subtract 1 from both sides:

-6x+1 -1 =49 - 1

Simplify:

-6x=48

Divide both sides by -6

-6x /-6= 48 /6

Which then gets you the answer up top!

Rewrite the phrase "two less than a number" as a variable expression. Explain how to evaluate it when n=5.

Answers

Answer:

n-2

Step-by-step explanation:

n=5 so the new equation is 5-2=3

Answer: N = 2 explanation: 5-2=3

How do I do this pls help

Answers

Answer:

Might be wrong, but, Stephan bought the bike and helmet for 115.2$

Step-by-step explanation:

(might be wrong)

$307 and 2 cent i think

Find the greatest number such that x172y is divisible by 45

Answers

Answer:

Step-by-step explanation:

Its 46 dusb dijdudusbs.

Chicago, Illinois, has an elevation of 600 feet above sea level (zero feet). The elevation of Desert Shores, California, is 800 feet less than the elevation of Chicago.

Which statement is true about Desert Shores?

the elevation is -200 feet

the elevation is 200 feet

the elevation is at 1400 feet

the elevation is at -1400 feet

Answers

Answer:

The elevation is -200 feet.

Step-by-step explanation:

600 - 800 = -200

-200, since you start off with 600 ft and your taking away 800 it would become negative so, 600-800= -200

how can you represent rational numbers on a number line, as decimals, and in real-world situations?

Answers

Step-by-step explanation:

very good question let's think of a satellite can see if there is a hurricane and do math and use rational numbers all the time the world is made out of math

there are many examples of rational numbers in real life such as a ruler, measuring cup, scales...

Does a proportional relationship occur for addition and subtraction or only for multiplication and division?

Answers

Follow lyricalcosplays on TikTok!! X

Answer:

I am pretty sure it is with all of them

Step-by-step explanation:

Is -0.25 repeating, rational or irrational?

Answers

Answer:

its a rational number

Step-by-step explanation:

since its not repeating and its not an unsolvable root or pie

pls help !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

The answer is 14 because -2 x -7 = 14. If you didn’t already know a sum is the value given when two or more numbers are multiplied together and the reason -2 and -7 multiply to get 14 is because the negatives cancel each other out to create a positive.

it’s just -9 since 2 + 7 is 9, but they’re opposite signs so it’ll be (-2) + (-7) = -9. The signs don’t change since both numbers are negative

Write an equation, in slope-intercept form(y = mx + b) that models the total cost of the rental over time.

Answers

y = 50/2 + 50

i think it’s the answer because rise over run it’s rises 50 and goes right by 2 and the 50 is the b where it started.

It should be y= 25x + 50

The gasoline consumption of a bus is 30l/100km and of a car is 9l/100km. To go on a 250 km trip, 30 people can either go by car with 5 people in each car or take one bus for all 30 people. Which method of transportation uses less gasoline, and how much less?

Answers

Answer:

The bus will take less consumption and by 60 litre

Bus uses less gasoline by 601.

What is Unitary Method?

The unitary technique involves first determining the value of a single unit, followed by the value of the necessary number of units.

For example, Let's say Ram spends 36 Rs. for a dozen (12) bananas.

12 bananas will set you back 36 Rs. 1 banana costs 36 x 12 = 3 Rupees.

As a result, one banana costs three rupees. Let's say we need to calculate the price of 15 bananas.

This may be done as follows: 15 bananas cost 3 rupees each; 15 units cost 45 rupees.

Given:

Case 1: Bus

Consumption/ 100Km= 301

and, for 250 Km= 301 /100 x 250

= 751

Case 2: Car

Total = 80 people

Total cars= 30/5 = 6

Consumption/ 100Km= 91

and, for 250 Km= 91 /100 x 250

= 22.51

Consumption by 6 cars = 6 x 22.51 = 1351

Difference between Gasoline Consumption = 1351-751 = 601

Learn more about Unitary Method here:

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What is the |-9|? Type your answer as a single integer only.

Answers

9, its 9, trust me, its 9.

Answer:

Step-by-step explanation:

how can you simplify integer expressions that contain more than one operation?
answer quick pls

Answers

Evaluate in the order of operations! PEMDAS

Parentheses

Exponents

Multiply/Divide (left to right)

Addition/Subtraction (left to right)

Example: 5 x 2 / 5 + (6 x 3)

1. Evaluate parentheses: 6 x 3 = 18

2. Multiply and divide: 5 x 2 = 10, 10 / 5 = 2

3. Add and subtract: 2 + 18 = 20

4. We're done: 20

how do you solve 33 + 27.2 – (6.8 + 24) – 3.1 i need it for an paper im doing and need to show my work

it is 6th grade work

Answers

PEMDAS (parenthesis, exponents, multiplication, division, addition and substraction)

33 + 27.2 - (6.8 + 24) - 3.1
33 + 27.2 - 30.8 - 3.1 --> 60.2
60.2 - 30.8 - 3.1 --> 26.3 <-- final answer

Decide which story can be represented by the system of equations below.

y=x+6.5y=x+6.5

x+y=19.5x+y=19.5

a. Rosa has 6.5 times more blue fabric than red fabric. She has a total of 19.5 yards of fabric.

b. Ryan's shoe size is 6.5 sizes larger than his little brother, Harrison. Ryan and his sister, Sasha's, shoe sizes add up to 19.5.

c. Yandel has 6.5 more pieces of pizza than his dad. Together, he and his dad have 19.5 pieces of pizza.

Answers

Answer:

Step-by-step explanation:

am i dum or is this super confusing

This looks very confusing how do you deal with this

The area of the triangle is less than 18 square inches. Select an inequality that represents a

Answers

Answer:

(1/2)(6)(a) < 18

Step-by-step explanation:

We know the formula for the area of a triangle is 1/2 b x h

The base is 6in and the height is a, so the equation is 1/2 6 x a.

The area is less than 18 sq in, so 1/2 x 6 x a < 18

Now, let's solve the inequality.

1/2 6 x a < 18

3 x a < 18

a < 6

Hope this helps :)

PLEASE HELP!

Write a variable expression that has a decreasing value as the value of the variable increases.

Answers

Y=-X
This is because as the value of x goes up, the value of y goes down

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