Mathematics Middle School

Which number line correctly shows –0.8 + 0.6?



A number line going from negative 1.6 to positive 1.6. An arrow goes from negative 0.8 to negative 0.2, and then backwards from 0 to negative 0.8.
A number line going from negative 1.6 to positive 1.6. An arrow goes from 0 to negative 0.8 and then from negative 0.8 to negative 1.4.
A number line going from negative 1.6 to positive 1.6. An arrow goes from 0 to 0.8 and then from 0.8 to 1.4.
A number line going from negative 1.6 to positive 1.6. An arrow goes from negative 0.6 to 0.2 and then from 0 to negative 0.6.
Mark this and return

Answers

Answer 1

Answer:

Step-by-step explanation:

Since -0.8 is located to the left of origin so when adding any value it will cause it to shift to the right. For example, add 0.1 to 0.8, we get a value of 0.7 shifting the arrow to the right, same goes for 0.2

-0.8 + 0.1 = -0.7

-0.8 + 0.2 = -0.6

-0.8 + 0.4 = -0.4

-0.8 + 0.6 = -0.2

In this way it ends at -0.2

Step-by-step explanation: I hope this helps:)

Related Questions

A middle school has an oval track with the dimensions shown. What is the distance around the track? use 3.14 for π. show your work.

Answers

I think the asnwear is 10859.94
I’m sorry if I’m wrong :{

The distance around the oval track would be 556.9 m which is the sum of the perimeter of the square and the circumference of the semi-circles.

What is the Circumference of a circle?

The Circumference of a circle is defined as the product of the diameter of the circle and pi.

C = πd

where 'd' is the diameter of the circle

We have to determine the distance around the track

The required distance is equal to the sum of the perimeter of the square and the circumference of the semi-circles.

A middle school has an oval track with the dimensions shown.

Here the length of a side of the square = 78 m

And the diameter of the circle = 78 m

the distance around the track = perimeter of  square + circumference of the circle

the distance around the track = 4 × 78 + π × 78 / 2 + π × 78 / 2

the distance around the track = 4 × 78 + π × 78

the distance around the track = (4 + π) × 78

the distance around the track = (4 + 3.14) × 78

the distance around the track = 7.14 × 78

the distance around the track = 556.9 m

Therefore, the distance around the oval track would be 556.9 m.

Learn more about the Circumference of the circle here:

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If you know this you are an honor roll kid


Your fingernails grow at an average rate of 2.25 inches per year. If they grow at an average rate, you never cut them, and they did not break, how much would your fingernails grow in 4.5 years?
BRAINLIEST*

GIVE ME BRANILST PLZ!

Answers

10.12 inches long.

It’s basic math alright?

Find the GCF of 24 and 108.

Answers

Answer:

12 is the greatest number that 24 and 180 divides into

Here is the question...

1/3n<-9

Answers

Answer:

" all numbers less than -27 "

Step-by-step explanation:

The instructions for this problem most likely go like this:  "solve the following identity."  In other words, find an inequality for n.

Start by multiplying both sides of the given inequality by 3, to eliminate the fraction 1/3:

n < -27

The solution:  " all numbers less than -27 "

All numbers are less of -27 so the person that answered before me is correct

HELP QUICKKK
Car A is traveling east at a steady speed of 60 miles per hour. After 2 hours, it is 130 miles east of Johnstown. Car B is traveling east on the same road. Its distance east of Johnstown is represented by the graph. Where were the two cars in relation to each other when they began traveling? A. Car A was 10 miles east of car B. B. Car A was 60 miles east of car B. C. Car B was 20 miles east of car A. D. Car B was 10 miles east of car A

Answers

Answer:

D. Car B was 10 miles east of car A

Step-by-step explanation:

→ Work out how many miles car A travelled

130

→ Work out how many miles car B travelled in 2 hrs

120

→ Find the difference

Car A is bigger by 10 miles

Answer:

Car A was 10 miles east of car B

3/4c-7/12+7/24c+2/3-1/6c
simplify the expression

Answers

Answer: 7/8c + 1/12

Explanation: separate the c terms and the non-c terms. 3/4c + 7/24c - 1/6c = 7/8c

-7/12 + 2/3= 1/12

therefore, it’s 7/8c + 1/12

The simplification of the given expression (3/4)c - 7/12 + (7/24)c + 2/3 - (1/6)c is (21/12)c + 1/12.

What is an expression?

A mixture of variables, numbers, addition, subtraction, multiplication, and division are called expressions.

A statement expressing the equality of two mathematical expressions is known as an equation.

As per the given expression,

(3/4)c - 7/12 + (7/24)c + 2/3 - (1/6)c

Combined likely terms,

⇒ (3/4)c + (7/24)c - (1/6)c - 7/12 + 2/3

⇒ (3/4 + 7/24 - 1/6)c + 2/3 - 7/12

⇒ [(18 + 28 - 4)/24]c+ (8 - 7)/12

⇒ (42/24)c + 1/12

⇒ (21/12)c + 1/12

Hence "The simplification of the given is (21/12)c + 1/12".

To learn more about expression,

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A school assembly had 600 students in attendance, and 35% of them were first-graders. How many first-graders were at the assembly?

can u also list the formula on how to do this while ur at it pls and ty

Answers

Answer:

210 Were First Graders

Step-by-step explanation:

35 percent of 600 is the same as 35 per hundred of 600. We can therefore make the following equation:

35/100 = X/600

To solve the equation above for X, you first switch the sides to get the X on the left side, then you multiply each side by 600, and then finally divide the numerator by the denominator on the right side to get the answer. Here is the work to illustrate:

35/100 = X/600

X/600 = 35/100

X*600/600 = 35*600/100

X = 21000/100

X = 210

The work above shows the long way to explain how to calculate 35 percent of 600 in order to give you a foundation and better understanding of how to calculate percentage. In the future, you could use this simplified formula:

(Y * P)/100

In our problem "What is 35 percent of 600?", Y is 600 and P is 35:

(600 * 35)/100 = 210

And once again you see that the answer is 210.

Answer:

210 kids

Step-by-step explanation:

So the formula is basically part over whole is equal to x/100%

So for here it would be x/600 = 35/100

Solve that and you will get 210

What is the equation of the line that passes through the point (8,-4) and has a slope of 3?

Answers

In order to solve it you insert the point in slope from

the equation is
Y=Mx+b

Plug it in as

-4=3(8)+b


-4=24+b

Then subtract 24

B=-28

So

The answer is

Y=3x-28
y-y1=m(x-x1)

(8, -4) 8 is x1 and -4 is y1
so y- (-4) = 3 (x -8)
make 4 a positive then y + 4 = 3x - 24
subtract 4 from 24 then y=3x-20

select the correct expression.

Answers

Answer:

D

Step-by-step explanation:

All we need to know is that there are 2 PASTRIES, this makes it to where we can exclude any equation multiplying against two tea cups. Thus making D the only answer correct.

D

because she wants to buy 2 pastries and one costs $2.75, so you’ll need to multiply by two. the tea is not needing to be multiplied. this expression is a y = mx + b.

Question about finding intercepts from a table. Hope someone can answer!

Answers

Basically you have to use the table to find the equation of the line, then plug in a point into x and y and the b you will get is your y-intercept.

Now if you are familiar with the equation of a line in slope intercept form, it will look like this: y=mx+b. Here the ‘m’ is the slope and the ‘b’ is your y-intercept. What you need to do is use any two points given from the table and find the slope. To do that follow the steps below:

1. Pick two points. Let’s take the first two.
(-28, -54) And (-21, -40)

2. Subtract the two y values, -40 - (-54) = 14
3. Subtract the two x values, -21 - (-28) = 7
4. Now take your answer from step 2 and divide it by your answer in step 3. This will be 14/7, which will be 2.

Your answer from step 4 is your slope, or ‘m’.
(That series of steps was basically change in y over change in x, you can look that up if you are still confused)

Now that you know m, your incomplete equation will be this:
y=2x+b.

Next you will pick any point from the table again, and replace it with x and y in the equation. Let’s pick the second point, (-21,-40)

Plug this in: -40 = 2(-21) + b
Solve for b and you will get your answer.
-40 = -42 + b
b=2
Your answer is 2, that is the y intercept.
(The full equation of the line from that table would be y=2x+2)

Hope this helps!

the equation of the line, then plug in a
point into x and y and the b you will get is
your y-intercept.
Now if you are familiar with the equation of
a line in slope intercept form, it will look
like this: y=mx+b. Here the 'm' is the slope
and the 'b' is your y-intercept. What you
need to do is use any two points given
from the table and find the slope. To do
that follow the steps below:
1. Pick two points. Let's take the first two.
(-28, -54) And (-21, -40)
2. Subtract the two y values, -40 - (-54)
14
3. Subtract the two x values, -21 - (-28) :
7
4. Now take your answer from step 2 and
divide it by your answer in step 3. This will
be 14/7. which will be 2.
Your answer from step 4 is your slope, or

PLS HELPPP ME!!!! URGENT

Answers

Answer:

i think 2²¹ is answer

Step-by-step explanation:

=2³×2¹⁸

=2^3+18

=2^21

Answer:

[tex] {2}^{21} [/tex]

Step-by-step explanation:

Expression:-[tex] {2}^{3} \times {2}^{18} [/tex]Question :-To simplify

Solution:-

[tex] = {2}^{3} \times {2}^{18} [/tex]

[As we know, a^x × a^y = a^(x+y)]

[tex] = {2}^{3 + 18} [/tex]

[On Simplification]

[tex] = {2}^{21} [/tex]

Result:-

Hence,

[tex] {2}^{21} [/tex]

Is the required answer.

(−4)+(−6)+(−3)+(−1)+0+2+(−1)+(−3)8

Answers

Answer:

-15

Step-by-step explanation:

Multiply: (-3)8= -24

Add: -4+6+3+1+0+2+1= 9

Subtract: 9-24= -15

Answer:

-37

Step-by-step explanation:

The diameter of each wheel of the car is 80 cm. How many complete rounds does each wheel rotate in 10 minutes when the car is moving at 60 km / h?

Answers

Answer:

The answer is 140cm

Mathematically, why am i so uneducated?

Answers

I getchu the education system is a mess!!

Answer:

I know this is most likely a joke but I'll answer anyways :)

"Mathematically" you might have poor education whether it's bad teachers, bad school, or maybe you're just not working hard enough. Maybe you are educated and you're just comparing yourself against smarter people which might make you seem not very educated. Or maybe you're secretly a super genius prodigy and you're just too lazy too show it. Who knows...

I need help with this question

Answers

Answer:

c

Step-by-step explanation:

Sa: 712ft^2

V: 1248ft^3

b. Surface area
c. Volume

Sam has saved 140 sand dollars and wants to give them away equally to n friends. Write an expression to show how many sand dollars each of Sam's friends will receive.

Answers

You would divide 140 by the number of friends. So it would be B. 140/n

Answer:

The answer is B. Equal distribution of the dollars would be to divide by how many friends there are.

Marcus can choose between a monthly salary of $1,500 plus 5.5% of sales or $2,400 plus 3% of sales. He expects sales to be $7,500 a month. Which salary option should he choose? Explain.

Answers

Answer:

Salary option #2($2400+3.3%)

Step-by-step explanation:

Salary option #1=1500+(5.5% of 7500)

=$1912.50

Salary option #2=2400+(3% of 7500)

=$2625

Answer:

Using the mean sales value $2400 basic + 3% commision is the better deal

Step-by-step explanation:

As the sales figures are not fixed to a single value lets use the mean (average) value:

In statistics the notation use for this is as follows:

Let the sales value be  

x

Then the mean sales value is:  

7500

mark as brainliest? :)

PLEASE HELP ME IM GIVING BRAINLIEST

Answers

Answer:

The one you chose is the correct answer.

Step-by-step explanation:

Adding all the [tex]x's[/tex] up, you will get [tex]3.38x[/tex]. Adding up all the non-variable numbers, you get 20.22. Your answer is C.

hope this helped.

your answer is C
explanation:

please answer!!!
( 10 points)

Answers

Answer:

120 miles/6 gallons = 20 mpg

(20 mpg)(g gallons) = 480 miles

g = 24 gallons

What is the standard form for the speed of light
299 792 458

Answers

Answer:

Here U Go

Step-by-step explanation:

Its exact value is defined as 299792458 meters per second (approximately 300000 km/s, or 186000 mi/s).

Hope it help

plz mark me as brainlist

299792458 metres per second

5. There are 450 students attending High Desert Middle School. This year 34% of the students walk to school. Explain how you can use proportional reasoning to calculate the number of students that walk to school.​

Answers

Ok so look get a piece of paper write down the percent is it going up or down we don’t know that but since it’s nothing like clothes you use that but think. Of your problem as like if you went to a store and so clothes were 34 percent off you going to get the original percent and then your doing 450\x ok now I go over 34%\100 it’s always going to be one hundred but since we’re talking about something else here’s your answer your just gonna say the ratio in this problem and your going to use that calculator call Dezmos use the scientific one and it will give you the answer if put 450 then 34%
If you put 34% over 100 multiply 34 and 450 then you will have 15,300. Then divide 15,300 and 100.

ANSWER: 153

i really need help someone answer pls

Answers

Answer:

(4)The lowest common denominator of 3 and 8 is 24.

(5) The lowest common denominator of 5 and 10 is 10.

(6) The lowest common denominator of 7 and 3 is 21.

(7) The lowest common denominator of 4 and 5 is 20.

(8) The lowest common denominator of 2 and 12 is 12.

(9) The lowest common denominator of 15 and 5 is 15.

Hope this helped! :)

Look at this picture and answer plz

Answers

Answer: First top box is 2400, 2nd top box is 120

423x6 = 2400 + 120 +18 = 2538

Step-by-step explanation:

423 x 6=2400+120+18=2538

plz helppp!!!!! I NEED IT NOWW !!!!!!!!!!!!!!!!

Answers

Answer:

A

Step-by-step explanation:

HELP ME PLEASE ASAP!!!!!!!!!!!!!!!!

Answers

[tex]\dfrac{x}{4} < -1.5\\\\\implies \dfrac x4 < -\dfrac 32\\\\\implies x < -\dfrac{3}2 \times 4\\\\\implies x< -\dfrac{12}2}\\\\\implies x<-6[/tex]

Gotta get x by itself so u multiply 4 on each side it gets rid of the fraction on the left then to the right side looks like u gotta change the fraction to a decimal so it would be x = -3/2 •4

1. A parking meter that is 1.6 meters (m) tall casts a shadow 3.6 m long. At the same time, a tree casts a shadow 9 m long.
1.6 m
3.6 m
9 m
What is the height, in meters, of the tree?
A - 20.24
B - 4.0
C - 32.40
D - 3.8

Answers

Answer: B - 4.0

Step-by-step explanation:

[tex]\frac{1.6}{3.6} =\frac{x}{9}[/tex]

(Cross multiply) [tex]3.6x=14.4[/tex]

[tex]\frac{3.6x}{3.6}=\frac{14.4}{3.6}[/tex]

[tex]x=4[/tex]

B.. have a great day hun

What is the perimeter of a square with a side length of 14 m?


A. 46 m
B. 56 m
C. 70m
D. 196 m

Answers

Answer:

56m..................

Last time a bot answered but the question is below.

Answers

Answer:

True, true ,true, true?, false

True true true true False

please answer!!!!!!
( 10 points)

Answers

Answer:

B

Step-by-step explanation: trust me

Answer:

the answer would be 20/b

Step-by-step explanation:

if 3 was 5 dollars

6 was 10 dollars

and 9 was 15 dollars you are counting by 5

5, 10 ,15, 20 ,25 ,30 etc.

3   6   9   12    15   18 etc.

please give brianlist.!!

1. Find the percent markup.

Markup ($) = percent markup (%) x original cost ($)


A computer store buys a laptop for $635 directly from the manufacturer (Dell). The markup is $570. What is the percent markup on the computer?

The percent markup is: _________%

Answers

[tex] \mathbb{ \ \underline{ \: \: ANSWER : }}[/tex]

1. Find the percent markup.

Markup ($) = percent markup (%) x original cost ($)

A computer store buys a laptop for $635 directly from the manufacturer (Dell). The markup is $570. What is the percent markup on the computer?

The percent markup is: 90 %

[tex] \mathbb{ \ \underline{ \: \: SOLUTION : }}[/tex]

FORMULA: Percent of Markup = Markup/Cost x 100

= $570/$635 x 100= 0.90 x 100= 90%

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