PLease help middle school math 40 points

PLease Help Middle School Math 40 Points

Answers

Answer 1

Answer:

b

Step-by-step explanation:

2/5 * 2x = 4/5

2/5 * 3 = 6/5 = 1 1/5

Answer 2

Answer:

B.

Step-by-step explanation:

Using the distributive property (multiplying 2/5 to both 2x and 3) we can get the answer 4/5x + 1 1/5.

I hope this helps :)


Related Questions

let f be the function given by f(x)=sin x + e^-x +3x. which of the following statements is true for y=f(x).

Answers

Applying derivatives, it is found that the correct options are:

A. [tex]y^{\prime\prime}(x) = -\sin{x} + e^{-x}[/tex]

D. [tex]y - y^{\prime\prime\prime\prime}(x) = 3x[/tex]

The function given is:

[tex]f(x) = \sin{x} + e^{-x} + 3x[/tex]

It's first four derivatives are:

[tex]y^{\prime}(x) = \cos{x} - e^{-x} + 3[/tex]

[tex]y^{\prime\prime}(x) = -\sin{x} + e^{-x}[/tex]

Hence, option A is correct.

[tex]y^{\prime\prime\prime}(x) = -cos{x} - e^{-x}[/tex]

[tex]y^{\prime\prime\prime}(x) \neq y^{\prime}(x)[/tex], hence, option B is incorrect.

[tex]y^{\prime\prime\prime\prime}(x) = sin{x} + e^{-x}[/tex]

It is not the multiplication of the first and of the third derivative, hence option C is incorrect.

[tex]y - y^{\prime\prime\prime\prime}(x) = 3x[/tex]

[tex]\sin{x} + e^{-x} + 3x - \sin{x} - e^{-x} = 3x[/tex]

[tex]3x = 3x[/tex]

Hence, option D is correct.

A similar problem is given at https://brainly.com/question/17042788

A shirt that normally cost $30 is on sale for $21.75 what percent of the regular price is the sale price

Answers

Answer: 72.5%

Step-by-step explanation:

I used trial and error to figure this out.

I first found a quarter of 30 which is 7.5, so the percentage is near 75% since when 7.5 is times by 3 it becomes 22.5 which is close. Then I found what one is by dividing 30 by 100 and guessed the percentages getting closer to the answer basing on whether my last answer was to low or high and found 72.5% of 30 is 21.75 so the answer is 72.5%.

Evaluate.

2 1/4 + 2/5 / (-1/2)-1/4

Enter your answer as a mixed number in simplest form in the box.

Answers

Answer:

[tex]1\frac{1}{5}[/tex]

Step-by-step explanation:

2 1/4 + 2/5 / (-1/2)-1/4

order of operation states you do division before subtraction or addition

2 1/4 -4/5 -1/4....divide 2/5 by -1/2

2 - 4/5.................combine like terms

6/5........................subtract

1 1/5.......................simplify

8 m good wire how long is the wire in millimeters

Answers

Answer:

Converting m to mm

=> 1 m = 1000 mm

=> 8 m = 8000 mm

Therefore,

The wire will be 8000 mm long.

Hope it helps you...

Please mark as brainlliest!!!

Graph the number on the number line.

Answers

Answer:

Step-by-step explanation:

can u take good picture

Ivan was the 31st person in line. His position in line was just behind 5/9 of the total number of people in line. How many people were in line? HELP PLEASE WILL MARK BRAINLIEST

Answers

31=1-(5/9)x

30=-(5/9)x

x=54

The answer is 54 people.

hope this helps :)

Help!!!!! I will give out brainiest to best answer!!!

Answers

Answer:

see below

Step-by-step explanation:

a = 4

b = -2

c = -8

d = -11

Answer:

a=4, b=-2, c=-8, and d=-11

Step-by-step explanation:

its pretty easy

what is the diameter of a circle that has the circumference of 400

Answers

Answer:

400/π

Step-by-step explanation:

Well, we know that the formula for circumference is πd. (d is the diameter) Then, we set up the equation 'πd = 400'. Now, simplifying for d, we get d = 200/π.

Answer:

400/π

Step-by-step explanation:

-7(8) What is it please help me I need help help help help

Answers

The Answer should be 10

What's 9 + 10?


Whoever gets it right get's the crown!

Answers

Answer:

jokes aside it is 19

Step-by-step explanation:

but if it is jokes then 21

Answer:

Step-by-step explanation:

the answer would be 21

What is an equivalent expression for 1.5(37* 4) * 0.25(Qr+8)

Answers

Answer:

-4 I believe is the answer

Step-by-step explanation:

Hope this helps:)

1/8 of a pumpkin pie has 379 calories. How many calories
are in the whole pie?

Answers

Answer:

379*8

Step-by-step explanation:

1. 300*8=2400

2.70*8 = 560

3. 9*8=72

3032

5 lb 6 oz = __________ oz
Explain yourself

Answers

Answer:

86 oz

Step-by-step explanation:

1 lb = 16 oz

5 lb * 16 oz = 80 oz

80 oz + 6 oz = 86 oz

6d + 20b ≤ 150

Solve for D and B

The help is highly appreciated and the best answer will get brainliest
thank you

Answers

Answer:

solving for b is b ≤ 15/2 - 3d/10

solving for d is d ≤ 25 - 10b/3

A random number generator generates numbers from 1 to 10. What is the probability that the number generator generates a 3 ?

Answers

Answer:

1/10

Step-by-step explanation:

the probability is that it will be 1/10

42. A football team is at its own 25-yard line. In the next three plays, it loses an average of 4 Yards per play. Where is the team after the three plays?

Answers

13 yard line!
4 yards per play * 3 plays = 12 total yards lost
25 - 12 = 13

What is the expression 3/8d+3/4 factored using the GCF

Answers

Answer:

[tex]\frac{3}{8}[/tex] ( d + 2)

Step-by-step explanation:

[tex]\frac{3}{8}[/tex] d + [tex]\frac{3}{4}[/tex]

= [tex]\frac{3}{8}[/tex] d + [tex]\frac{6}{8}[/tex] ← factor out [tex]\frac{3}{8}[/tex] from each term

= [tex]\frac{3}{8}[/tex] (d + 2) ← in factored form

Louis is comparing the populations of several nearby cities. The population of Liberty Crossing can be written as 49 people, and the population of Harrisburg can be written as 47 people. The population of Glenview is 43 times the population of Harrisburg. Drag the cities to put them in order from least population (top) to greatest population (bottom).

Answers

Step-by-step explanation:

Louis is comparing the populations of several nearby cities. The population of Liberty Crossing can be written as 49 people, and the population of Harrisburg can be written as 47 people. The population of Glenview is 43 times the population of Harrisburg. Drag the cities to put them in order from least population (top) to greatest population (bottom).

The order of the cities from least population to greatest population:

Harrisburg

Glenview

Liberty Crossing

Given the information provided:

Harrisburg: This city has a population of 47 people. It's the smallest population among the three cities.

Glenview: The population of Glenview is 43 times the population of Harrisburg.

Since Harrisburg has 47 people, the population of Glenview would be 43 x 47 = 2021 people.

So, Glenview has a larger population than Harrisburg but is still smaller than Liberty Crossing.

Liberty Crossing: The population of Liberty Crossing is given as 49 people, which is the largest population among the three cities.

So, the correct order from least population to greatest population is:

Harrisburg

Glenview

Liberty Crossing

Learn more about Ascending order click;

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For the two numbers listed, find two factors of the first number such that their product is the first number and their sum is the second number -12,-1

Answers


-4 x 3 = -12
-4 + 3 = -1

X+y=6 x-y=-2 solve by elimination

Answers

Step-by-step explanation:

x + y = 6

+ x - y = -2

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

2x + 0 = 4

x = 2

2 + y = 6

y = 4

what is the measure of angle x

Answers

Answer:

180

Step-by-step explanation:

Find the value of X in triangles by subtracting known angle measurements from 180 degrees. Since the value of all angles within a triangle must equal 180 degrees, if you know at least two angles, you can subtract them from 180 to find the missing third angle.

Find the 20 th term of the given sequence 2, 5, 8, 11,..

Answers

Answer:

14,17, 20

Step-by-step explanation:

Kindly see the picture I have solved it as required

Write the equation of the line in fully simplified slope-intercept form.

Answers

Answer:

Where is the problem?

Step-by-step explanation:

6+7+8+...+(n+5) find the sum.

Answers

Answer:

n + 26

Step-by-step explanation:

first you have to simplify

6 + 7  +8 + n + 5

then combine the like terms

6 + 7 + 8 + n + 5

(n) + ( 6 + 7 + 8 + 5)

= n + 26

hope this helps

The points (-1, 4) and (2, 9) lie on a line.
What is the slope of the line?

Answers

Answer:

[tex]\displaystyle m = \frac{5}{3}[/tex]

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Algebra I

Coordinate Planes

Coordinates (x, y)Slope Formula: [tex]\displaystyle m = \frac{y_2 - y_1}{x_2 - x_1}[/tex]

Step-by-step explanation:

Step 1: Define

Identify

Point (-1, 4)

Point (2, 9)

Step 2: Find slope m

Simply plug in the 2 coordinates into the slope formula to find slope m.

Substitute in points [Slope Formula]:                                                              [tex]\displaystyle m = \frac{9 - 4}{2 + 1}[/tex][Order of Operations] Simplify:                                                                        [tex]\displaystyle m = \frac{5}{3}[/tex]

PLZ HELP
What question should you ask yourself first when factoring polynomials?

A: Can I divide all terms by a GCF?

B: What is the exponent of the first term?

C: What is the degree of the polynomial?

D: Are there four terms?

Answers

C. Answer correct I think.

Answer:

The correct answer is A: Can I divide all terms by a GCF?

explanation:

I took the quiz

If Esteban continues at the same rate, how many miles will he have traveled in 6 hours?



A. 36
B. 300
C. 360
D. 420

Answers

Answer360

Step-by-step explanation:

If u=log(x3+y3+z3-3xyz)show that d2u/dx2+d2u/dy2+d2u/dz2=-3/(X+y+z)^2​

Answers

Points matter H16/z=d33752

find the degree of the polynomial 5ab^3-7a^5c^2-5

Answers

Answer:

7

Step-by-step explanation:

as -7a^5c^2 term has two cofficient a and b and each have power.by adding power of one term we get 7

Complete the sentences to make true statements

6 is 100 times ____.
0.06 is 10 times ____.
60 is 1/100 of ____.

Answers

Answer:

6 is 100 times 0.06  

0.06 is 10 times 0.006  

60 is 1/100 of 6,000

Step-by-step explanation:

Since 6/100 is equal to 0.06, we can say that 6 is the result of multiplying 0.06 by one hundred (0.06 x 100 = 6).  

On the other hand, since 0.06 / 10 is equal to 0.006, it is correct to say that 0.006 x 10 is equal to 0.06 (0.006 x 10 = 0.06).  

Finally, 60 is one hundredth of 6000, since multiplying 60 x 100 the result is 6,000 (6,000 / 100 = 60).

hope this really helped!!

mark me brainliest :D

The complete sentences are:

6 is 100 times 0.06 .

0.06 is 10 times 0.006.

60 is 1/100 of 6,000.

"6 is 100 times greater than 0.06":

This means that if you multiply 0.06 by 100, you get 6.

So, 6 is indeed 100 times larger than 0.06.

"0.06 is 10 times greater than 0.006":

In this case, if you multiply 0.006 by 10, you get 0.06.

Thus, 0.06 is 10 times larger than 0.006.

"60 is 1/100 of 6,000":

This means that if you divide 6,000 by 100, you get 60.

So, 60 is a hundredth (1/100) of 6,000.

Hence, 6 is 100 times 0.06  

0.06 is 10 times 0.006  

60 is 1/100 of 6,000

To learn more on Number system click:

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