Mathematics Middle School

Sasha wants to know her average grade on her math tests. She earned a score of 70 on two tests, an 80 on one test, and a 90 on two tests. What is Sasha’s mean score?
A.70
B.75
C.80
D.90

Sasha Wants To Know Her Average Grade On Her Math Tests. She Earned A Score Of 70 On Two Tests, An 80

Answers

Answer 1

Answer: c. 80

Step-by-step explanation:

Answer 2

Answer:

80

Step-by-step explanation:

First add all of the the test results 70+70+80+90+90=400 then you divided by how many test their were so 400/5=80

Related Questions

What is the slope of the line, y=5−4x?

Answers

Answer:

(m) =  

ΔY

ΔX

= 0

Step-by-step explanation:

Answer:

the slope is -4

Step-by-step explanation:

You are given the equation y=5-4x. You can put that into slope intercept form.  Slope intercept form is y=mx+b where b is the y intercept and m is the slope. In this equation the slope is -4 and the y intercept is 5. You can  rearrange this equation into slope intercept form. If you do this you will get y=-4x+5.

Hope this helps :)

Please give brainiest

Hellppp meeeeeee PLEASEEEEE can y’all help

Answers

Answer:

90

Step-by-step explanation:

11 + 34=45

45+45=90 your welcome

90 is going to be your answer

Sue earns $1,200 per week as a computer operator. Her husband Jim earns $2,000 per week working as a teacher. What are Sue’s monthly earnings?

Answers

Answer:

4800

Step-by-step explanation:

Her monthly earnings are $4,800

[tex]1200 \times 4 = 4800[/tex]

Since she earns $1,200 per week, and there are 4 weeks in a month, you multiply both of the numbers and get the answer.

Hope that helped:)

HELP PLEASE I CAN'T UNDERSTAND I WILL GIVE YOU BRAINLIEST PLEASE HELP

Answers

Answer:

a. 1/27 b.3 1/2

Step-by-step explanation:

a.1/3*1/3*1/3=1/(3^3)=1/27

b.2 1/3*1 1/2*1= 3 1/2

Answer:

a.1/3*1/3*1/3=1/(3^3)=1/27b.2 1/3*1 1/2*1= 3 1/2

Step-by-step explanation:

PLEASE HELP ILL GIVE BRAINLY THIS IS TIMED!

Answers

Answer:

For the first one 6x+7=6x+7 there are infinte solutions while 3(2x+10)=6x−2

there are none

Step-by-step explanation:

Hope i helped ;)

Answer:

#1: infinite

#2: none

Step-by-step explanation:

The sum of the interior angles of any triangle is equal to:
A. 90°
B.120°
C. 180°
D.240°
E. 360°
PLEASE give me the answer im really stuck and tried so many times this is for a grade!! Thanks :)

Answers

The answer is c. 180

C sinc eeach angle is 60 degrees so 60x3=180

Using subsitution, which value of x makes this equation true? x+1/6=1

x=13


x=23


x=56


x=76

Answers

Answer:

5/6

Step-by-step explanation:

ive had this question

5/6
Had same question

HELP PLS ASAPP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:- 11/32

Step-by-step explanation:

4 /18 divided by 12 is 0.34375. If you make that a fraction it's -11/32.

Answer:

-33/8

Step-by-step explanation:

You make 4 1/8 a mixed number and it becomes 33/8 and you add a negative.

Answer 3-12 please, thank you!

Answers

The answer is nine, 9 + 3 = ( equals ) 12 so weather subtract, or adding, you will get the same answer <3

Michelle's cookie recipe calls for 3/4 cup of brown sugar to make 3 dozen cookies. Which of the following shows an amount of brown sugar that would make the corresponding amount of cookies? Choose all that apply.

Answers

Answer:1/2 cup of sugar makes 1 dozen cookies

1 cup if sugar makes 4 dozen cookies

Step-by-step explanation:

Answer:

1/2 cup of sugar makes 1 dozen cookies so, 1 cup of sugar makes 4 dozen cookies

Select the slope-intercept form of an equation for a line with y-intercept =−5and slope =2.

Answers

Answer:

Y= -5x+2

I plugged all of the equations in to a coordinate plane

The answer is the second one y=2x-5 because of the straight line equation y=mx+c

Please help I need thiss done right noww

Answers

Answer:

-14 is one

sorry i don't have anything eles

Answer:

-14 or [tex]\frac{140}{-10}[/tex] or [tex]\frac{70}{5-10} }[/tex]

Step-by-step explanation:

I hope this helps!!!

Brandon buys a radio for $48.81 in a state where the sales tax is 7%.
can someone pls help?

Answers

Answer:

$48.81 x 0.07 = 3.4167

$48.81 + $3.4167 = $52.2267

$52.23

Step-by-step explanation:

The shirt cost $48.81, and the sales tax is 7%. First convert the 7% into a decimal and you get 0.07, and then multiply that to the $48.81. You get left with $3.4167 and then add that to the $48.81 to get $52.2267. But, you have to shorten the numbers to make it look like money by simplifing. So the total is $52.23.

Answer:52.17

Step-by-step explanation: You go to your calculator and type 7% × 48.81

Select the locations on the number line to plot the points 2, 1, and −4 .

Answers

Answer:

-5-4-3-2-1 0 1 2 3 4 5

Step-by-step explanation:

Step-by-step explanation:

look at the picture

hope it helps you.

Answer 2,4,6 please!!!

Answers

EEEEEEEEEEEEEEEEEEEEEEEEEEEEE

Max needs to subtract 75.8 – 12.431. He notices that the larger number does not have any digits in the hundredths or thousandths places. How can Max solve this problem? Use what you know about subtracting decimals to tell Max the steps he should take to solve this problem, and help him solve it.

Answers

Answer:

63.369

Step-by-step explanation:

Answer:

63.369

Step-by-step explanation:

you just add two zero's to 75.8 which is 75.800 and then 12.431 stays the same. so therefore, it'll be 75.800 - 12.431 = 63.369. YOU'RE WELCOME :) HOPE I HELPED !!!!

evaluate 13+ab,when a= 2.5 and b=3.

Answers

13
+
a
b
=
a
b
+
13
13
+
a
b
=
a
b
+
13
a
=
2.5
=
=
2.5
a
=
2.5
=
=
2.5
b
=
3
=
=
3
b
=
3
=
=
3

Answer= 20.5

how do I do 6,413-764 show your work, I will give brainliest
(I'm in middle school but i have long term memory and I forget how to do subtraction please help me)

Answers

First you multiply 6 times 413 which is 2478. Then you add -764.

The answer is 1714

Answer:

the answer is 5649

Step-by-step explanation:

PLEASE PLEASE HELP PLEASE LOOK AT THE QUESTION PLZZZZZZZZ

Answers

Answer:

212 °C

Step-by-step explanation:

divide 9 by 5, then multiply that by 100, then add 32 to that.

9 divided by 5 is 1.8 x 10 = 180 + 32 = 212

Hope this helped!!

I NEED HELP PLZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ I WILL MARK BRAINLEST

Answers

Answer:

EQUAL TO

Step-by-step explanation:

Equal to would be the answer

Explanation: When plugging in numbers and matching the graph with an equation you get that answer therefor the equation is equal to it

Hope I helped! (Would appreciate Brainliest) :)

Someone please help. I will give brainliest.

Answers

2. -56

1. 35x

3. 60mph

5. 10.33

4. 13.05$

6.5

7. 34

8.14.09

9.1200

10.53

12. 67.0

13. 6.21

14. 32

Hope it helps you!!! :D

Answer:

Step-by-step explanation:

I need help ill give brainliest (Only if answer is correct)
8,121 ÷ 8 =
R

Answers

Answer:

1015.125

............................

Answer: 1015.125

Step-by-step explanation:

Which equation has a solution of s = 3/4?

Answers

Answer:

the answer is that you have to follow these rules.

Step-by-step explanation:

1. Simplify each side of the equation by removing parentheses and combining like terms.

2. Use addition or subtraction to isolate the variable term on one side of the equation.

last but not least

3. Use multiplication or division to solve for the variable.

(4,-3) hope it helps

HELP PLEASE WILL BE MARKED BRAINLIEST

Invent a new term for "dwarf planets" and explain why the term is appropriate.

Answers

Answer:

Eris

Step-by-step explanation:

The new term for dwarf planets will be called Eris, after the Greek goddess of discord. Eris's moon is named Dysnomia, the demon goddess of lawlessness and the daughter of Eris.  It is appropriate because the object had been an planet for so long, it deserved a name from Greek or Roman mythology, like other planets.

Answer:

Mini Planets

Step-by-step explanation:

If dwarf planets are small so are mini stuff thats why the term is appropriate.

25 points for this please help with step by step

Answers

a) 20.9

    The mean is calculated by adding up the scores and dividing the total by the number of scores, it is also called the average.

    First, we can count and see there are 11 players (makes sense for a football team). Adding up the ages gives us 19 + 19 + 20 + 20 + 20 + 21 + 22 + 22 + 22 + 22 + 23 = 230. Divide by 11 and we get a mean of of about 20.9!

b) 30

To figure this out, we will set up an equation that looks like this:

[tex]\frac{19 + 19 + 20 + 20 + 20 + 21 + 22 + 22 + 22 + 22 + 23+x}{12} =22[/tex]

And now we will solve:

[multiply both sides by 12] 230 + x = 264

[subtract 130 from both sides] x = 30

So the age of the new player should be 30!

Have a nice day!

    I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)

- Heather

Answer:

For A its 21

Step-by-step explanation:

add all the numbers which is 105, then divide it by 5 because thats how many numbers we have. the answer is 21

Anthony is building a cube-shaped box to store some of his smaller crafting supplies. The formula for the surface area of a cube is SA=6s2, where s is the side length of the cube. If he has a total of 200 in.2 of cardboard, can Anthony build a box where s=6 in.?

No, he needs 16 in.2 more cardboard.

No, he needs 232 in.2 more cardboard.

Yes, he will have 56 in.2 of cardboard left over.

Yes, he will have 128 in.2 of cardboard left over

Answers

Answer:

No, he needs 16 inches^2 more cardboard.

Step-by-step explanation:

Take the formula and substitute values into it. 6 * 6^2

Do the exponent first to get 6 * 36, and then complete that to get 216. Since he has 200 inches of cardboard and he would need 216, that means he would need 16 more square inches to make his cube.

No he needs 16 in 2 more cardboard

What is the value of 3x + 2y – x when x = -1 and y = 5?

Answers

Answer:

8

Step-by-step explanation:

3x + 2y -x

3*-1 + 2*5

-3+10-(-1)

7 +1 = 8

Hello! (:

3(-1)+2(5)-(-1)

-3+10+1

-3+11

8

Hope it helps!

[tex]SparklingFlower[/tex]

i need some help again

Answers

A = small box of oranges

B = large box of oranges

3A + 14B = 203

11A + 11B = 220

Take the second equation and divide it by 11 as both A and B have the same coefficient, which will equal:

[tex]\frac{11A+11B}{11}[/tex] = A + B

220 will also have to be divided by 11, giving you 20

A + B = 20

You can cancel out 3A in the first equation by subtracting 3A + 3B = 60 from it.

11B = 143

143/11 = 13

B (large box of oranges) costs $13.

Substitute 13 for B back into one of our equations, in this case 3A + 3B = 60

3A + 3*13 = 60

3A + 39 = 60

3A = 21

A = 7

Thus:

A small box of oranges costs $7, and a large box of oranges costs $13.

Hope this helped! (please brainliest)

Which graph represents a proportional relationship?

Answers

the only one that has a straight line and is at 0
The one that has a straight line at zero

Omg please help I cannot rn
I did 26 in class, the rest I just can’t
Will reward brainliest for best and complete answer PLEASE!!!!

Answers

I think 24 is 2 I hope this helps

Answer:

17) 1/2b^4

18) x^4/y^2

19) y^3/2x^4

20) 1/9m^2

21) 1/2r

22) 1/4x^5

23) n

24) ½

25) 3/m^7

27) z^3/xy^2

28) 2h^3 k^3/3j^4

29) 4m^2 n/3p

30) 3x^7/yz

Step-by-step explanation:

Other Questions
A process in which cells surround and engulf substances that are too big to passthrough the membrane is known as...membrane pumpendocytosisfacilitated diffusionexocytosis Hi, can someone help me with this. I need to submit this tonight. Help please...Question : Hi Suriana, How are you? I hope you and your family are in the pink of health. I have great news. My friends and I will be climbing Mount Kinabalu next week. I'm really nervous about climbing it. You enjoy climbing mountains too, don't you, Suriana? Could you please give me some advice about it? Hope to hear from you soon. Mei Li.In about 80 words write an email to Mei Li giving some advice. The structure of Disodium edta Check all true statements about nonmetals. Group of answer choices All nonmetals are gaseous at room temperature. Nonmetals have low melting and boiling points. Nonmetals are brittle and have a relatively low density. Nonmetals are good at thermal and electrical conduction. Using the colored periodic table below, match the group or area to its color. alkali metals red alkaline earth metals orange transition metals white halogens purple Nobel gasses teal How many of each subatomic particle are in a neutral atom of Potassium-39? What is its mass number? Potassium is in group 1 and has the symbol "K".protons 19 neutrons 20 electrons 19 mass number 39Match the ion with its charge. 11 protons, 12 neutrons, 10 electrons = +1 Groups 17, period 2 = -1 31 protons, 39 neutrons, 28 electrons = +3 Group 2, period 5 = +2 Which best describes a metal such as Silver (Ag)?Answer: Lustrous, malleable, and forms cations. Determine if the "quoted" word(s) makes each statement True or False. Elements that share the most characteristics are found on the periodic table in the same "horizontal period". False If matter has a higher temperature, that means there will be "more" molecular motion. True If you put a balloon in a freezer, its volume would "increase". False If you put the balloon into a chamber where there is half the pressure, its volume will "double". True If you cool down a propane tank, there will be "less" pressure in it. True The average atomic mass of Aluminum (Al) is "16.00 amu". FalseOxygen's atomic number is "8" therefore it has "8" protons in its nucleus. TrueAn "electron" has the same mass as a neutron. FalseThe nucleus contains "protons and neutrons", virtually all the mass of an atom. Find the slope of line 2, which is parallel to line 1. Line i goes through the points(-13, -6), (7, 15). A group of people living in the same economic condition is called What are the REACTANTS inphotosynthesis?A. Sunlight and WaterB.Glucose and OxygenC.Carbon Dioxide and Water What punctuation belongs between the underlined words? I want to eat some Junior Mints they are my favorite.A. comma B.colon C. semicolon D. no punctuation The gasoline consumption of a bus is 30l/100km and of a car is 9l/100km. To go on a 250 km trip, 30 people can either go by car with 5 people in each car or take one bus for all 30 people. Which method of transportation uses less gasoline, and how much less? Determine the error(s) in the problem below and use mathematical languagefrom module 2 to explain and answer correctly. Larry, Curly, and Moe run the only saloon in town. Larry wants to sell as many drinks as possible without losing money. Curly wants the saloon to bring in as much revenue as possible. Moe wants to make the largest possible profits. Using a single diagram of the saloons demand curve and its cost curves, show the price and quantity combinations favored by each of the three partners. Explain. A leaky pipe drips 2 fluid ounces of water per hour. How many cups of water does it leak in 2 days? Remember that 8 fluid ounces = 1 cup What are the domain and range of f(x) = (one-sixth) Superscript x + 2?domain: Left-brace x vertical-line x greater-than negative one-sixth right-brace; range: {y | y > 0}domain: Left-brace x vertical-line x greater-than one-sixth right-brace; range: {y | y > 2}domain: {x | x is a real number}; range: {y | y > 2}domain: {x | x is a real number}; range: {y | y > 2} Which of the following is the capital of country #5? Political map of Europe with numbers over ten countries. Number one is the farthest east that is north and surrounded by water. It is next to number two that is longer and also surrounded by water. Number three is small and borders Germany on the northwest. Number four is below number three and borders Germany and number five. Number five borders Germany on the southwest and is a large mass of land that is surrounded by water on the western border it shares a border with number six that is the larger mass of land farthest south and west. Number seven is a small country that shares borders with number five, Germany, and number eight. Number eight looks like a boot and stretches south. It is surrounded by water on three sides. Number nine is a land mass that is to the east of the tip of the boot of number eight. It has water and smaller islands on three sides and has an shares a northern border with Bulgaria. Number 10 shares a southern border with number eight and a small part of western border with number seven. It borders Czech on the northeast and Hungary on the southeast. DublinParisLondonMadrid The effect that causes diminished clarity and detail of elements as they recede in the distance is called perspicacious.TrueFalse Thomas wants to buy a new TV for$899. The city tax is 7%. What willhis final price be after tax is added? How to find the equation of a line. A bedroom is in the shape of a square. The length of the room is 6p7q. What is the area of the bedroom in terms of p and q? why do sampson and gregory want to fight with the montagues 1. When a 50,000 kg rocket blasts off there is a large force that acts on the rocket at the momentof take off. In 0.137 seconds, the rocket suddenly has traveled 4.2 meters. What force fromthe rocket engines caused the acceleration? (Hint: first find acceleration.)