Mathematics Middle School

## Answers

**Answer 1**

**Answer:**

The answer is A 5(5x-2y)

**Step-by-step explanation:**

5(5x-2y)= 25x-10y

5x5=25 2x5=10

**Answer 2**

**Answer:**

A

**Step-by-step explanation:**

Group them together, also known as distributive property.

5(5x) - 5(2y) =

25x - 10y

Hope this helps! :)

## Related Questions

Can someone help me with this? (Functions)

### Answers

**Answer:**

can u show me questions

**Step-by-step explanation:**

i m not seeing the questions

Please answer this question

### Answers

**Answer:**

-2 degrees Celsius

**Step-by-step explanation:**

Graph at 3 degrees Celsius as your starting point, then go down by 5 degrees Celsius on the number line.

3 - 5 = -2

-2 should be the Temperature at late in the afternoon.

The answer would be -2 be cause 3-5 = -2

i’ll mark as brainliest if correct!

### Answers

**Answer:**

x+x+x+x and x^4

**Step-by-step explanation:**

can someone pls i will give brainliest :)

### Answers

**Answer:**

149 degrees

**Step-by-step explanation:**

Higher value:

114

Lower value:

-35

Finding the difference:

114 - (-35)

114 + 35

149

Yea the answer is 149 degrees

What does a closed circle on a number line mean?

### Answers

**Answer:**

**Step-by-step explanation:A closed circle indicates "greater than or equal to" or "less than or equal to," while and open circle indicates "greater than" or "less than".**

**Answer: They are numbers that are less than or equal to and greater than or equal to. **

**Step-by-step explanation: I hope this helps! **

If a student likes hotdogs, what is the probability that student also likes burgers?

93.8%

50.7%

42.1%

39.5%

### Answers

**Answer:**

42.1%

**Step-by-step explanation: helped by the flower dude**

**Answer:**

I will say b

**Step-by-step explanation:**

Why I think it is b is because people half a 50 50 chance

brainliest please I beg I just need 1 more please till I rank up then I’ll do anything for you please I beg of you

The sum of a number and ten is eighteen. What is the number?

Which statements are true? Check all that apply.

The words “a number” are represented by the variable, n, as the unknown value.

The unknown number and 10 together make 18.

9 + 9 = 18

8 + 10 = 18

n = 8

### Answers

**Answer:**

9 + 9 = 18, 8 + 10 = 18, n = 8 are all correct, but if you want the value of n its 8.

**Step-by-step explanation:**

8 + 10 = 18

Hope this helps! Please leave any questions or concerns in the comments byeee <3

The **solution** is, 9 + 9 = 18, 8 + 10 = 18, n = 8 are all correct,

but if you want the **value **of n its 8.

What is addition?

**Addition** is a way of combining things and **counting** them together as one large group. ... **Addition** in math is a process of **combining** two or more **numbers**.

here, we have,

The** sum** of a** number **and ten is **eighteen**,

i.e. if the **number** is n , then,

we get,

sum of n & 10

i.e. n+ 10

ATQ,** sum** of a number and ten is **eighteen**

so, n+ 10 = 18

i.e. n = 8

so, we get,

n= 8

this gives ,

8 + 10 = 18

Hence, The **solution** is, 9 + 9 = 18, 8 + 10 = 18, n = 8 are all correct,

but if you want the **value **of n its 8.

To earn more on **addition** click:

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pls help me i'll give the brainlist or whatever it is to the first correct answer. pls NO LINKS.

### Answers

Answer:

628 hope it helps

Step-by-step explanation:

628 hope it right

ite

so who said i was not good at math???? me i did lol

### Answers

**Answer:**

I got 10 grade on my 7th iready test

**Step-by-step explanation:**

Just try your best ;-;

**Answer:**

-4 5/12

**Step-by-step explanation:**

Easy question!(exponents) Plz help!

### Answers

x=-2/5

Steps:

6^x/3 +2 = 6^-14x/3

x/3+2 = -14x/3.

x +6 = -14x (multiply both sides by 3)

x = -14x - 6 (Substract 6 from both sides)

x + 14x = -6 (add 14x to both sides)

15x = -6 (collect like terms)

x = -2/5 (divide both sides by 15)

During a three-month period, four trees in the Perillo's backyard grew in height. The rates at which the trees grew are listed below.

### Answers

**Answer:**

D

**Step-by-step explanation:**

The answer would be D

If 90 females and 120 males out of 504 total students get to school by car, what is the relative frequency of females who get to school by car in relation to the total students at the school?

### Answers

**Answer:**

0.1786 = 17.86%

**Step-by-step explanation:**

120 + 90 = 210/504 journey by car

Relative frequency of 90/ 504

= 90/504 =0.178571429

0.1786 = 17.86%

The requried **relative frequency **of females who get to school by car in relation to the total students at the school is approximately 0.1786 or 17.86%.

What is the relative frequency?

Relative frequency is a measure that indicates the proportion or percentage of times an event occurs in **relation **to the total number of events. It is calculated by **dividing **the frequency of an event by the total number of events. The result is a **decimal **or a **percentage**.

Here,

The total number of students who get to school by car is 90 + 120 = 210.

The relative frequency of females who get to school by car is the number of females who get to school by car divided by the total number of students at the school, which is 504:

90/504 = 0.1786

Therefore, the **relative frequency **of females who get to school by car in relation to the total number of students at the school is approximately 0.1786 or 17.86%.

Learn more about **relative frequency **here:

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can yall help me???......./

### Answers

**Answer:**

25 + 25 + 25

25 • 3

**Step-by-step explanation:**

I did this iready and got it right :)

It’s the second one

25+25+25

PLEASE HELP! Will give brainliest! No jokes or links please.

Peter, Dan, Harold, and Randy each have a nickel. All four of them flip their nickels at the same time.

What is the probability that Dan and Randy will each flip the same thing. (Either they will both flip ‘heads’ or they will both flip ‘tails’.)

### Answers

**Answer:**

probability: 50%

**Step-by-step explanation:**

either they will both flip it, or they wont (its 50 percent)

It is 50 percent possible

NOOOOOOOO LINNNKKKKSSSSSSSS!!!!!!

47-(2x4) Nooooo Liinnkkkkkksssssssssss

Heeellllpppppp

### Answers

39 ………………………………………………………………

**Answer:**

47-(2×4)= 47-8 = 39 the right answer

help meeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee

### Answers

The answer is 20 because if you put the t in the exponent you have to multiply 2(2) and you get 4 and 5(4) is 20.

According to the line plot, how much more is the total weight of the 1/2 of a pound dog toys than the weight of the 5/8 of a pound dog toys?

### Answers

You didn’t attach the line plot but I’ll do my best.

1 pound = 16 ounces

It says of a pound dog toys, meaning that we will have to do multiplication:

1/2 * 1 pound

= 1/2 * 16 ounces

= 8 ounces

5/8 * 16 ounces

= 10

Next, find the difference:

10 - 8 = 2

The total weight of 5/8 of a pound of dog toys is 2 ounces greater than 1/2 of a pound of dog toys.

Also, the last bit of the question is worded incorrectly. 5/8 > 1/2 right off the bat. I’m not sure who designed the question but I think you should let them know since it would likely confuse individuals who encounter this question. Hope this helps!

**Answer: You didn’t attach the line plot but I’ll do my best.**

**1 pound = 16 ounces**

**It says of a pound dog toys, meaning that we will have to do multiplication:**

**1/2 * 1 pound**

**= 1/2 * 16 ounces**

**= 8 ounces**

**5/8 * 16 ounces**

**= 10**

**Next, find the difference:**

**10 - 8 = 2**

**The total weight of 5/8 of a pound of dog toys is 2 ounces greater than 1/2 of a pound of dog toys.**

**Step-by-step explanation:**

The temperature of a cup of coffee changes -0.8 degrees for every minute it sits on the counter. If the overall temperature change of the coffee is -4.8 degrees, how many minutes has it been sitting on the counter?

### Answers

**Answer: **6

**Step-by-step explanation: **Divide the -4.8 / -0.8 to find the answer.

The answer is 6 because when you divide -4.8 by -0.8 it’s 6

Many games involve chance and they usually involved either dice or cards. For this activity, we will look at a common game called 7‐11 where two dice are rolled. If the roll adds up to 7 or 11, the player wins. If the roll adds up to 2, 3, or 12, the player loses. If there is any other sum, it is a draw (no winner or loser). Use this two‐dice roll scenario to complete the problems below.

1. Create a list of all the possible outcomes and their sum.

2. What is the probability for each of the sums below?

3. What is the total chance of winning?

4. What is the total chance of losing?

### Answers

**Answer:**

Win: 3+4=7, 6+1=7, 2+5=7, 5+6=11

Loses: 1+1=2, 2+1=3, 6+6=12

Draw: 1+3=4, 2+2=4, 3+2=5, 4+1=5, 3+3=6, 1+5=6, 4+2=6, 3+5=8, 4+4=8, 6+2=8,

3+6=9, 4+5=9, 4+6=10, 5+1=6, 5+2=7, 5+5=10

Just put it into a tree diagram and its good to go

**Step-by-step explanation:**

Beatrice makes a jar of dry soup mix. The ingredients are: 1 ¾ cups of uncooked rice

½ cup of dry lentils

1 ⅔ cup of uncooked pasta

⅓ cup beef bouillon

¼ cup of dried onion flakes

½ cup dried peas

How much soup mix does this recipe make?

Answer the questions to find out.

The sum 7/4 + 1/2 + 5/3 + 1/3 + 1/4 + 1/2 gives the amount of mix.

3. Use these properties to rewrite 7/4 + 1/2 + 5/3 + 1/3 + 1/4 + 1/2 in a way that makes the addition easier. Explain how your changes simplify the addition.

4) Simplify your sum to find the total amount of soup mix. Show your work.

(this is a repost because people put random answers)

### Answers

**Answer:**

1: 5

3: 2.25 + 2.75

not sure about 4 hope this helps

**Step-by-step explanation:**

The math club needs to raise more than $552.50 for a trip to the state competition. The club has raised 12% of the funds. Which inequality shows how much each of the 7 club members needs to raise if each raises the same amount?

### Answers

Answer:

m> $69.46

Step-by-step explanation:

The math club raised 12%, and we know that 12% as a decimal is 0.12 (12/100=0.12).

We must find 12% of 552.50.

0.12 x 552.5=66.3

66.3 was raised.

552.5-66.3= 486.2

There are 7 members, so divide by 7.

486.2 / 7= 69.457 → 69.46

∴Each member must raised at least $69.46

Find x. (Finding an angle measure given extended triangles) Please help

### Answers

50+79=129

180-129=51

X=51

Explanations

Angles on a straight line add up to 180 degrees. So 180-101=79 degrees

50 degrees is an opposite angle so it moves into the internal angle.

Angles in a triangle add up to 180 so (180-50-79=51)

Ans is 51 I think

The answer is x=51.

We know this by first looking at the exterior angle measure 101 degrees. It has a linear pair so it’s adjacent angle measure is 79 degrees. This means that since the interior angle and exterior angle(79 degrees) share a vertex so they have congruent angle measures

This means the first missing interior angle is 79 degrees

Next the other exterior angle measures 50 degrees and like I said before, it shares a vertex with the other interior angle making the second missing angle 50 degrees

This leads to the final step, adding the angle measures together then subtracting them from 180 degrees.

So 79+50+x=180

79+50 is 129,

Then we subtract 129 from 180 to find x

And your answer is 51 :)

(I hope I explained it clear enough!)

10. Between which two consecutive integers does √31 lie?

### Answers

**Answer:**

5<square root of 31<6

**Step-by-step explanation:**

**Square root of 31 equals 5.57 so the answer would be between 5 and 6.**

What is the scale factor of this dilation?

A.) One-half

B.) Two-thirds

C.) Three-fourths

D.) Three-halves

### Answers

**Answer: C) Three-fourths **

I.e., the fraction **3/4**

======================================================

Explanation:

Let's pick on the horizontal sides. Divide the image length Y'Z' = 9 over the corresponding preimage length YZ = 12 to get

(Y'Z')/(YZ) = 9/12 = **3/4 which is the scale factor**

The scale factor is less than 1, meaning the image's lengths are shorter compared to the preimage's corresponding lengths.

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

Alternative Paths:

You can pick any other pair of corresponding sides to get the same result:

(X'Y')/(XY) = (7.5)/(10) = 75/100 = **3/4**(Z'X')/(ZX) = 6/8 = **3/4**

**Answer:**

[tex]scale ~factor= Z'Y'/ZY[/tex]

[tex]=9/12[/tex]

[tex]=3/4=0.75[/tex]

[tex]So ~your~ answer ~will~ be ,~C.) Three-fourths[/tex]

**-------------------------------**

**hope it helps... **

**have a great day**

PLS HELP, WILL REWARD BRAINLIEST ASAP !!!

### Answers

**Answer:**

the median lap or both runners

I’ll say The median

Your teacher decides to determine groups in your class by pulling names out of a hat and not replacing them. What type of even is this?

### Answers

**Answer:**

Social Loafing

**Step-by-step explanation:**

In social psychology, social loafing is the phenomenon of a person exerting less effort to achieve a goal when they work in a group than when working alone. It is seen as one of the main reasons groups are sometimes less productive than the combined performance of their members working as individuals.

The **event** is an example of a **combination**.

What is a combination?

It is an arrangement of a set of numbers from a total set where the order of the set is not relevant.

We have,

This **event** is an example of a non-replacement or non-independent event.

In **probability** **theory**, an event is said to be non-replacement or non-independent if the outcome of a previous event affects the outcome of the current event.

In this case,

Once a name is pulled out of the hat, it is not replaced, meaning that the probability of pulling out a certain name changes with each draw.

For example, if a name is pulled out of the hat, the **probability** of pulling out that same name again decreases because it is no longer in the hat.

Therefore,

This **event** is non-replacement or non-independent.

Learn more about **combination** here:

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Find the total value of the investment after the time given

### Answers

**Answer:mm**

13)30187.802

14)1837.565

15)1446.336

16)74008

17)33297.293

18)34972.978

19)13817.6

20)155.589

**Step-by-step explanation:**

13)18000*1.09to the power of 6

14)1500*1.07³

15)1240*1.08²

16)55000*1.16²

17)28600*1.079²

18)21000*1.136to the power of 4

19)12700*1.088

20)130*1.094²

; hi! sorry for asking another question and not helping! :(

### Answers

**these answers should be easy to look up**

It is ok to ask questions in fact I ask them a lot

27. Starting with x=1.666666, express x as a fraction in simplest form.

### Answers

The answer:

X=5/3

Explanation:

.6666 is 2/3 + the 1 which is 3/3 so it’s 5/3

Lynn's laptop computer is sitting on top of her desk and is creating an angle. What is a good estimate for the measurement of this angle?

A. 110°

B. 95°

C. 80°

D. 70°

### Answers

B : 95! I’m pretty sure cause 90 is a straight angle and that’s near a computers angle is you look at it from the side .

Answer: The most reasonable answer would be B because the Laptop would be facing towards her.

Step-by-step explanation: It couldn't be A because it would be leaning too far, It couldn't be C because the Computer would be facing too low, and it couldn't be D because that would be too low also.