Mathematics Middle School

(I really need help!!!)
x + 14 + (-x)

Answers

Answer 1
If you simplify the expression, it comes out to just 14.

Related Questions

Best Answer Gets Brainliest

The double box-and-whisker plot represents the runs scored per game by two softball teams during a 32-game season. a. Which team is more consistent at scoring runs? Explain. b. In how many games did Team 2 score 6 runs or less? c. Team 1 played Team 2 once during the season. Which team do you think won? Explain. d. Which team do you think has the greater mean? Explain

Answers

A. Team 2 because the data is spread across the line and has a higher end point.
B. 4 games
C. Team 2 because they have the higher batting average.
D. Team 1 has the greater mean because team 1 has a mean of 9 and team 2 has a mean of 5.

Answer its,    C and standard deviation,  lowest  

Step-by-step explanation:

After 4 months of living in her dorm room, Molly had 5 fish. Eight months later, Molly still had 5 fish. Which of the graphs below models Molly's fish population?

Answers

i dont know need graph examples to find out 

A box of 21 holiday cards sells for $3.99. What is the unit price per card?

Answers

The unit price is about $0.19 per card.
It would be .19 Each card.

3x - 13 = 7(x+2) - 4(x-7)

Answers

7x+14-4x+28. 3x+42. 3x-13=3x+42. Not equal x is 0

21/99 simplified in fraction

Answers

To simplify 21/99, divide both sides by 3, to get 7/33.

Gavin bought 4 packages of cheese. Each package weighed 1.08 kilograms. How many kilograms of cheese did Gavin buy?

Answers

4*1.08
=4.32kg

Gavin bought 4.32kg of cheese.

Hope this helps! A thanks/brainiest answer would be appreciated :)
4.32 kilograms of cheese, work below

4*1.08=4.32

ken had a number of colored marbles in a bag. 1/4 of the marbles were red, 2/3 of the marbles were blue, and the rest were yellow. Given that there were 120 red and yellow marbles all together, how many marbles were there in the bag

Answers

567                                                                                                                                 your answer is 567                                                                                                                                              
Red = 1/4
Blue = 2/3
Yellow= ?

First you will need to find how much of the fraction is yellow so:
RED= 1/4 = 3/12
BLUE= 2/3 = 8/12
YELLOW= add 3/12 with 8/12= 11/12
12/12 - 11/12= 1/12

so the yellow marbles are 1/12

yellow + red = 120
1/12    + 3/12= 120
4/12= 120

so 4/12 of the marbles are 120

how much is 8/12?
120 x 2= 240

now: 
red + yellow = 120
blue= 240

how many are in the bag? 120 + 240 = 360

answer: 360



I don't know if this is correct. but I tried. hope this helped:)


Factor 4x^2+8x-21 completely

Answers

4x^2 + 8x - 21 =
(2x - 3)(2x + 7) <==
4x^2+8x-21

4x^2-6x+14x-21

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

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


i need help with this one!

Answers

The answer is B! Your welcome if you need anymore help message me for more questions!

A company manufactures 295 toy cars each day how many toy cars does the company manufacture and 34 days

Answers

That company manufactures 10,030 toy cars. You just multiply the two numbers.

Simplify this expression

Answers

Hello there!

Let's put these into simpler terms:
-7s + 3s + 2s 
10 - 8 - 7

-7s + 3s = -4s
-4s + 2s = 2s

10 - 8 = 2
2 - 7 = -5

We are now left with:
2s - 5, which is your simplified expression.

I hope this helps!

the lengths of the sides of a triangle are three consecutive odd integers. The perimeter of the triangle is 45in. What is the length of the shortest side of the triangle?

Answers

The middle integer is the average of them, their total divided by 3. The shortest side is 1 less, so is
.. 45/3 -1 = 14

What is the slope of the line represented by the equation y = – 2/3- 5x?

A. -5
B. -2/3
C.2/3
D. 5


PLS HELP TY

Answers

Answer:

Option A The slope of the line is [tex]-5[/tex]

Step-by-step explanation:

we know that

The equation of the line into slope intercept form is equal to

[tex]y=mx+b[/tex]

where

m is the slope

b is the y-intercept

we have

[tex]y=-\frac{2}{3}-5x[/tex]

Rewrite

[tex]y=-5x-\frac{2}{3}[/tex]

therefore

[tex]b=-\frac{2}{3}[/tex] -----> the y-intercept

[tex]m=-5[/tex] ------> slope


what does coplanar mean

Answers

Salutations!

What does coplanar mean?

Coplaner is a term used in geometry referring as points which rest on the very same plane; typically orbiting the same way. The point can be rested as 3 or several points in the same plane.

Hope I helped :D

PLEASE HELP!!! I WILL RATE BRAINLIEST TO THE FASTEST AND CORRECT ANSWER!!!

Answers

Not easy:

- 4 < x^4 + 4x^2 ---> 0 < x^4+4x^2+4 = (x^2+2)^2, so it is always positive. Always satisfied. Curious ...

Now the other one:

x^4+4x^2<21 --> x^4+4x^2-21 < 0 --> (x^2+2)^2 - 25 < 0

(x^2+2)^2<25 ->>> x^2+2 < 5 ---> x^2 <3,

So -sqrt(3)<x<sqrt(3) is the answer! Brainliest?

SOMEONE, PLEASE HELP URGENTLY <3
What shape is generated when rectangle ABCD is rotated around the horizontal line through D and A?
A. Prism
B. Pyramid
C. Cone
D. Cylinder

Answers

The answer I came up with is D a cylinder
I came up with...
D. cylinder.

a set of data can have no mode true or false

Answers

If there is NO data value or data values that occur most frequently, we say that the set of data values has no mode.

True, A set of data can indeed have no mode. In statistics, the mode represents the value(s) that appear most frequently in a dataset.

However, there are scenarios where no value occurs more frequently than others, resulting in a lack of a mode. This can happen in several situations. For example, in a uniform distribution where all values occur with equal frequency, or in a dataset with no repetition of values (each value occurs only once). Additionally, if the data is continuous and does not have distinct categories or intervals, it may not have a mode. In summary, while a mode is a common descriptive statistic, it's not a requirement for every dataset, and some datasets do indeed have no mode.

What is a complex fraction?

Answers

A complex fraction is a fraction with a mixed number, or in it's numerator(Top number) or denominator(Bottom number) or both.
A complex fraction is a fraction that includes another fraction for example, 1/2
-------
6

Find 3 consecutive integers whose sum is 180

Answers

60. 60 + 60 + 60 = 180.
x + (x+1) + (x+2) + (x+3) = 180
4x + 6 = 180
4x = 174
x = cannot be an even integer
If they were consecutive even integers,
x + (x+2) + (x+4) + (x+6) = 180
4x + 12 = 180
4x = 168
x = 42, 44, 46, 48

Ryan has a shelf that is 64 over 3 inches wide. How many magazines can Ryan arrange on the shelf if each magazine is 4 over 3 inches thick?

Answers

He can fit 16 magazines on each shelf
16 since each 4/3 is the width of each book you can do 64 divided by 4 in which you get 16

7 indian and 4 chinese finish a job in 5 days. 7 japanese and 3 chinese finish the same job in 7 days. given that the efficiency of each person of a particular nationality is same but different from others.one chinese,one indian and one japanese will complete the work in

Answers

the answer is
20 7/12

The question is about work and efficiency and requires solving a system of equations to find the individual work rates of people from different nationalities. However, because we have insufficent data (two equations but three unknowns), we cannot find a unique solution and thus can't determine how long it would take for one Chinese, one Indian, and one Japanese to complete the work together.

The student's schoolwork question involves solving a problem related to work and efficiency, which is a part of mathematics, specifically related to rate and work problems.

First, let's find the rate of work done by individuals from each nationality. We can set up the equations based on the given information:

Let's denote the efficiency of one Indian as I, one Chinese as C, and one Japanese as J.According to the given information:
7I + 4C = 1/5 (since 7 Indians and 4 Chinese finish the job in 5 days)7J + 3C = 1/7 (since 7 Japanese and 3 Chinese finish the job in 7 days)

We will need to solve this system of equations to find the individual efficiencies I, C, and J. However, we have two equations and three unknowns, so we cannot find unique solutions for I, C, and J unless we have one more equation or information.
Since we cannot determine the individual efficiencies with the given information, we cannot determine how long it would take one Chinese, one Indian, and one Japanese to complete the work.

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