Mathematics Middle School

i need help
I hate math guys​

I Need HelpI Hate Math Guys

Answers

Answer 1

Answer:

4 * 2y + 4 * 1

4(2y + 1)

Distributive property

Step-by-step explanation:

8y + 4

We can factor out a 4 out of both as both are divisible by 4

8y / 4 = 2y

4 / 4 = 1

So 8y + 4 is the same as saying 4 * 2y + 4 * 1

This can be written as 4(2y + 1) which is written using the distributive property

Related Questions

how much water should be added to 5 gallons of 50% acid solution to get a 20% solution?

Answers

Answer:

7.5 gallons

Step-by-step explanation:

2.5/5+x=0.2

This question is based on the concept of solving an  equation. Therefore, 7.5 gallons of water would be added to 5 gallons of 50% acid solution to get a 20% solution.

Given:

5 gallons of 50% acid solution to get a 20% solution.

According to question,

Let  it be x gallons of water should be added to 5 gallons of 50% acid solution to get a 20% solution.

Now, forming the equation, we get,

 0.50 ( 5 )  =  0.20  ( x + 5 )

Simplifying the equation.

We get,

2.5 = 0.2x + 1

1.5 = 0.2 x

x = 7.5

Therefore, 7.5 gallons of water would be added to 5 gallons of 50% acid solution to get a 20% solution.

For more details, please prefer this link:

https://brainly.com/question/21105092

Marissa is biking with friends. Their distance traveled can be determined by the equation D = 13h, where D is the distance, in miles, and h is the number of hours spent biking. Identify the constant of proportionality.

Answers

Answer:

The 13 would be the constant.

Step-by-step explanation:

When mom is doing cleaning on her own it takes 2 hours. When dad does cleaning, it takes 4 hours. How long will it take if both of them work together?

Answers

2 hours because mom will just kick dad out since he’s not helping much
It will take them 8 hours

What is the distance between the points? Round to the nearest tenth if necessary.

A. 6.7

B. 7.1

C. 3.0

D. 9.0

Answers

Answer:

Step-by-step explanation:

Translate the word phrase into a math expression.

1 less than a number.


A. n + 1

B. n−1

C. 1−n

D. 15 ÷ n

Answers

B is the answer because we don’t know what it is so n less than 1

Who is in the game show?

Answers

Answer:

i Am bro

Step-by-step explanation:

What are you talking about

SImplify:

(2m)^5

Please help if possible :)

Answers

Your answer should be 32m^5
(2m)(2m)
4m^2(2m)
8m^3(2m)
16m^4(2m)
32^5

2m x 2m
4m^2 x 2m
8m^3 x 2m
16m^4 x 2m
32^5

HELPPPPPP ASAP PLSPLSPLSPLSPLSPLSPLSPLSPLS

As a tornado approaches, the air temperature changes −8.2°F every hour.

Which value represents the change in air temperature over 1.6 hours?


−5.125°F

−6.6°F

−9.8°F

−13.12°F

Answers

I believe the answer is -13.12

Explanation: I multiplied -8.2 by 1.6 to get -13.12
-13.12 correct me if i’m wrong anyone please

99 + 81 = 9(11 help eeeeeeeeeeeeeeee

Answers

Answer:

180?

Step-by-step explanation:

99+81=180 I hope that’s what you’re asking good luck i hope you get it got a good grade (;

What is the probability of choosing a burrito with cheese and a taco or wrap with salsa??

Answers

Step-by-step explanation:

50/50 chance of choosing one or the other because there is only two options

A population of caribou in a forest grows at a rate of 3% every year. If there are currently 208 caribou, which function represents the number of caribou in the forest in t years?

Answers

Answer:

f(x)=208^0.3x

Step-by-step explanation:

Think of this as a graph. You start out with 208 caribou, which is your y intercept, as it is there when the growth is 0.

The generic formula fr an exponential equation is a^x.

A represents your initial value. In this case, its 208

x represents the growth. In this case, it's 0.3%.

Your equation should be f(x)=208^0.3x

It wasn't all that bad. The snowmobile only needed towing out. From that incident, she owes them $42. How much is her total debt to her parents?

Answers

42 dollars
dnsbsjanshsbaushsgs
I got you!
Answer is: 42$ to her parents!

What is 125 ÷ (2×7) = ???

Answers

Answer:

8.93

Step-by-step explanation:

Answer:

the answer is 8 and 13/14, or 8.93

Step-by-step explanation:

because of PEMDAS, we solve the numbers in the parenthesis first.

2 x 7 = 14.

next, we divide 125 by 14.     125 / 14 =     8 and 13/14

in decimal form, that is 8.93 (rounded up)

hope this helps :D

55x + 10 = 230
What is x?

Answers

Answer:

x = 4

Step-by-step explanation:

55x + 10 = 230

=> 55x = 230 - 10

=> 55x = 220

=> x = 4

Therefore, x = 4.

Hoped this helped.

Answer:

x= 4

Step-by-step explanation:

solving equation step-by-step.

55x + 10 = 230

Subtract 10 from both sides.

55x + 10 − 10 = 230 − 10

55x = 220

Divide both sides by 55.

55x/55 = 220/55

x= 4

Our Answer: x= 4

Glad to help :)

HELPPPPPP ASAP PLSPLSPLSPLSPLSPLSPLS

Half of the sum of a number n and 14 equals 5. What is the number n ?
n = 24
n = 12
n=−2
n=−4

Answers

Answer:

n = -4

Step-by-step explanation:

n+14/2 = 5

x2           x2

n + 14  = 10

    -14     -14

        n = -4

N=-4

Explaination
N+ 14/2= 5

-4+14=10
10/2=5

Therefore n= -4

The eighth-grade class is planning a trip to Washington, D.C. this spring. They need a minimum of 75 people to attend in order to reserve buses. If one-third of the 8th-grade class plus 17 parent chaperones have signed up and this is enough to satisfy the requirement, how many students must be in the 8th-grade class?
X - how many students must be in the 8th-grade class

Answers

Answer:

There needs to be 174 Students in the 8th grade class.

Step-by-step explanation:

173(1/3) is 58

58+17=75

helpppppppppppppppppppppppppppppppppppppppppppp

Answers

Answer:

I think it should be [tex]24x^{2}[/tex]

Step-by-step explanation:

When the question said area of the cube, I think it was supposed to be surface area, which would [tex]6a^{2}[/tex] where a is the length of one edge. Given that the length of one edge is 2x, we would plug in 2x to the equation to get[tex]6*(2x)^{2}[/tex] which would become [tex]24x^{2}[/tex].

Which expression is equivalent to this expression? 3/4(4h – 6) A. 3h – 9/2 B. 4h + 9/2 C. 3h – 6 D. 4h + 6

Answers

Answer:

A. 3h – 9/2 B.

Step-by-step explanation:

Solve this please
⎯.+/⎯.+/

Answers

Whattttttttt?????????

i suck with this so can some one help

Answers

Step-by-step explanation:

[tex]sa = 2\pi(r)(h) + 2\pi{(r) }^{2} [/tex]

[tex]sa = 2\pi(5)(2) + 2\pi{(5) }^{2} [/tex]

[tex]sa = 20\pi + 50\pi[/tex]

[tex]sa = 70\pi[/tex]

Grant mows lawns for extra money. He mows 9 lawns in 9 hours on Wednesday and 6 lawns In 6 hours on Saturday.
What is the constant of proportionality that relates the total number of lawns mowed, y, to the number of hours mowing lawns, x?

Answers

Answer:

the constant is 1. 9/9 is the same as 1. so 9hours over 9 lawns is 1.

Someone help me with this please, I really need help and its due tmrw...PLEASE

Answers

Answer:

The number of hours a student should spend on their homework to expect a 94 on the quiz.

It’s 94 because it’s says

Which of the following is true? (1 point)

|−4| < 3
|−4| < |3|
|−3| < −4
|−3| < |−4|

whoever is smart enough gets brainliest >:))

Answers

It’s A because |-4| = 4 and 4>3
It’s A and D


explaintion
|-4| = 4
and |-3| = 3
and 3<4

a house can be painted in 5 days by ৪ workers. how long will it take for 12 workers to paint the same house

Answers

2 days maybe hope it helps.

Answer: 5 days I think. :)

Step-by-step explanation:

Ben earns $18 per hour. His job offers a 6.3% raise. After the raise, how much will Ben earn per hour?

Answers

look it up im sure someone will know

The answer would be $19.13

help quick please!!
if
JK=9x+3
KL=5x+2
JL=75
find KL.

Answers

KL= 27
Work:
If JL is the whole (75), you add JK (9x+3) and KL (5x+2). 9x+3+5x+2=75. Add like terms first. 14x+5=75. Subtract 5 from both sides. 14x=70. Divide by 14 from both sides. X=5. Now plug X=5 into your equation (KL: 5x+2). 5(5)+2= 27
Kl=27 because that’s what the other guy said and Yh

Rafi had a board that was 15 1/2 feet long. He cut three pieces off the board that are each 3 7/8 feet long. How much of the board is left?

Answers

Answer:

Step-by-step explanation:

To answer this question, first we need to figure out how much of the board Rafi cut off.

To do this, we need to multiply the length of each piece by the number of pieces he cut off.

3 7/8 = 3.875

3.875 * 3 = 11.625

Now, because we knew Rafi cut off 11.625 feet off of the board, we just need to subtract this length from the length of the entire board to find the remaining length.

15 1/2 = 15.5

15.5 - 11.625 = 3.875

There is 3.875 feet or 3 7/8 of the board left.

What is the range of possible sizes for side x?

Answers

Answer:

dunno hahhhaha

Step-by-step explanation:

Morgan has an 8 1/2 foot board that must be cut into boards that are feet long. How many of the smaller boards can he get from the 8 1/2 foot board?

Which of the following equations could you use to solve the problem?
x * 8 1/2 = 5/6
8 1/2 * x = 5/6
5/6 * 8 1/2 = x
8 1/2 / 5/6 = x

Answers

Answer:

8 1/2 / 5/6 = x

Step-by-step explanation:

8 1/2 foot board to be cut into 5/6 feet boards.

Number of smaller boards is:

8 1/2 ÷ 5/6 = 17/2 ÷ 5/6 = 17/2 × 6/5 = 51 / 5 = 10 (the whole part)

Correct equation is D

Consider the table, equation, and graph. Which of them represents a proportional relationship?

Answers

Answer:

A line that represents a proportional relationship passes through the origin, so these data are directly proportional.

Step-by-step explanation:

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