Mathematics Middle School

Can anyone please help with this for brainliest?

Answers

Answer 1

The answer is c
Explanation I’m smart

Answer 2

Answer:

The first one

Step-by-step explanation:

Related Questions

Brainliest, 10 Points, + 5 Stars if correct! Drag each tile to the correct box. Not all tiles will be used.

Arrange the systems of equations that have a single solution in increasing order of the x-values in their solutions.

Thanks everyone!

Answers

1:a 2:d 3:c basically do that

Ahmad’s goal is to exercise for a mean of 45 minutes per day for one week. For the first six days of the week, he exercised 35, 40, 37, 42, 45, and 50 minutes. What is the number of minutes Ahmad must exercise on the 7th day to meet his goal for the week?

Answers

Answer:

41.5

Step-by-step explanation:

To find the mean, your supposed to add all the numbers you have and divide by how many numbers there are. In this question your numbers are 35, 40,37,42,45, and 50.

If you add them all up you get 249. Your next step is to divide by how many numbers there are. Since there are 6, your equation will now be 249 divided by 6. Your answer is now 41.5

So on the 7th day Ahmad exercised for 41.5 minutes. If you need to round then maybe 41 minutes.

Answer:

41.5

Step-by-step explanation:

On the 7th day Ahmad exercised for 41.5 minutes and if you want to put it simply its 41 minutes.

If I have a 67 F in a class and I get an 85 B on a project, what will my grade be now?

A - 93-100

B - 85-92

C - 75-84

D - 70-74

F - Below 70

Here are all my grades at the moment, if they are even important. (I have really fallen off in the last quarter, which is just great.)

Answers

Answer:75-84

Step-by-step explanation:

The perimeter of a square is represented by 20n-8. Write an expression that will represent each side of the square.

Answers

Answer:

n=3

Step-by-step explanation:

20+20+20 length +width+ height

20×3

(20n-8) / 4
5n-2 is the answer

A coffee grinder uses a current of 1.20 A and has a resistance of 100 ohms. Calculate the voltage explain

Answers

Answer:

Step-by-step explanation:

I = V / R

Current = (voltage) / (resistance)

Current = (500 V) / (250 ohms)

Current = (500/250) Amperes

Current = 2 Amperes

120V

VOLTAGE = CURRENT * RESISTANCE

1.20A * 100ohms

Using inverse operations is a direct way to solving equations

What is the Golden Rule for solving equations?

Answers

Answer:

Do unto one side of the equation, what you do to the other!

Step-by-step explanation:

An equation is like a balance scale. If we put something on, or take something off of one side, the scale (or equation) is unbalanced. When solving math equations, we must always keep the 'scale' (or equation) balanced so that both sides are ALWAYS equal.

Answer:

Keeping the equation balanced.

Step-by-step explanation:

You need to keep the equation balanced on both sides of the equal sign, like when you need to get rid of the number 4 on one side you have to do the same thing on the other side.

I need to get aleks done on june 3oth

Answers

Answer:

3.2

Step-by-step explanation:

Since it is similar, we know that the sides are gonna be directly proportional so

QR (6.4) / BC (4) = scale factor of 1.6

1.6 x 2 = 3.2

Answer is 3.2 to your aleks

Joe has 1/2 of a bag of peanuts. He wants to share them equally among himself and 3 friends. How much of the bag of peanuts would each person get?
A. 6
B. 1/6
C. 3/2
D. 1 1/2

Thank you!!!!!

Answers

Hi there! So joe had 1/2 of a bag of peanuts and he wants to share them equally, it would be 1/6! Answer B

The answer is B because you need to do

PLS help me :)))) thx

Answers

Answer:

7) 96in²

8)292yd²

Step-by-step explanation:

6×2=12

14×6=84

84+12=96

26×7=182

22×5=110

182+110=292

Answer for the first one (7):

A = 96 square inches

Step-by-step explanation:

to find the unknown sides: 6+6=12

and: 14-12=2

then split into rectangles and find the area for each of them by multiplying the two sides and then add the two rectangles' areas together

Answer for the second image (6):

A= 229 square yards

Step-by-step explanation:

to find the unknown sides: 29-22=7

and: 26-21=5

split into rectangles find area for each of them then add the areas to get the answer

A storage box has a height of 8 inches, length of 4 inches, and a width of 4 inches. I use cubes with an edge length of 12 inch. If the box is completely full, how many cubes will fit in the storage box?

Answers

Answer:

Step-by-step explanation:

8×4=32×4=128

12×3=36

128÷36= 3.5

but u need to put full cubes which would be 3

The answer is 3 I don’t really know how to explain it

Mr. Zeeman received a tax refund. He spent $40 on take-out food for a family dinner and used one-third of the remaining money to buy a new vacuum cleaner. After he deposited half of what was left in his checking account, he still had $80. How much was his tax refund?

Answers

$280
$80•2=160+80=240+40=280
Hope this helps :)

280

40+1/3=40.3
80+80=160
200+80=280

Evaluate : 1/2 ( 4x - 12) when x = 9

Answers

Answer: 12
Explanation:
Replace the X with nine then solve it in your parentheses first then multiply your parentheses by 1/2

Answer:

Step-by-step explanation:

plug in 9 for x in the equation

1/2 (4(9)-12)

Question:
A running club keeps track of the number of hours each person has trained for a race and the length of time it takes the person to run the race. A scatter plot is graphed with the x-axis indicating the number of hours a runner has trained and the y-axis indicating the time, in minutes, it took to run the race. The equation y = 60 - 0.5x is used as the line of best fit of the data. What does the slope of the equation represent?

options:

a
Runners will decrease their race time by 2 minutes for every 1 hour they have trained.
b
Runners will increase their race time by 2 minutes for every 1 hour they have trained.
c
Runners will increase their race time by 1 minute for every 2 hours they have trained.
d
Runners will decrease their race time by 1 minute for every 2 hours they have traine

Answers

The solution is, 60 minutes is a good prediction of how long it will take Tom to run the 6 mile race.

What is scatter plot?

A scatter plot is a type of plot or mathematical diagram using Cartesian coordinates to display values for typically two variables for a set of data. If the points are coded, one additional variable can be displayed.

Here, we have,

We are given the scatter plot which shows the distance he has run and the time it took for each run.

We are asked to determine a good prediction of how long it will take Tom to run the 6 mile race?

One way to predict the time is by drawing a line that best fits the given data.

As you can see, from the line of best fit, the time corresponding to the 6 miles is around 60 minutes.

Therefore, 60 minutes is a good prediction of how long it will take Tom to run the 6 mile race.

Answers

Answer:

Step 2: 47

Step 3: 84

Step 4: 114

Step-by-step explanation:

Step 2: The width is 21, and the length is 36.

Sum is addition, so it would be 21 + 36.

21 + 36 = 47

Step 3: 47 x 2 = 84

Step 4: Perimeter is all around, whilst area is on the inside. The length is 21, so it is 21 + 21. 21 + 21 is 42. The width is 36, so it is 36 + 36, which is 72. 72 + 42 = 114.

Step 2:47
Step3: 84
Strp4: 114

HELPPPPP!!!!!!!!!!!!!!!!!!!

Answers

Answer:

I think $10 is the answer

Just to confirm the last answer it is 10 dollars I think

Select all the expressions that are equal to 3/4

Answers

Answer:

A and B

Step-by-step explanation:

7/20 + 2/5 = 3/4

19/20 - 1/5 = 3/4

3 4/7 - 9/10 = 2 47/70

The answer is definitely A and B

PLEASE HELP ASAP

Describe, in great detail, how you would graph a line that is in slope-intercept form.

Use y=-3x+ 5 as your example.

Answers

Hi there!

»»————-　★　————-««

Please see the explanation below.

»»————-　★　————-««

Explanation:

Recall the meanings of the variables in the slope-intercept equation.

⸻⸻⸻⸻

[tex]\boxed{\text{\underline{Slope Intercept Form:}}}\\\\y=mx+b\\---------------\\\boxed{\text{Key:}}\\\\\rightarrow \text{m - slope}\\\rightarrow \text{b - y - intercept}[/tex]

⸻⸻⸻⸻

We already have one point given, the y-intercept. The y-intercept of a line when given a slope intercept form equation is: [tex](0, b)[/tex]Using the example, we would graph the point (0,5) as our first point.

⸻⸻⸻⸻

To graph the second point, we need to understand the meaning of slope. The slope of a line can be remembered as 'rise over run'.The slope for the given equation is -3. This means we would have to go three units down and then one unit right from the y-intercept. Our new point would be (1,2).

⸻⸻⸻⸻

The result should be the graph attached.

»»————-　★　————-««

Hope this helps you. I apologize if it’s incorrect.

Thanks it’s really helpful

HEY CAN SOMEONE HELP ME FAST I GIBE BRAINLIST

Answers

Answer:

Step-by-step explanation:

Add all the "x" 's up.

1(2)=2

2(1)=2

3(1)=3

4(1)=4

5(4)=20

6(1)=6

7(1)=7

you add those up to get 44.

Now add all the individual "x" 's which equal 11.

44/11=4

Should be 4 because there is three on the left side and three on the right

A regulation baseball diamond is a square with 90 feet between bases. How far is the second base from the home plate to the nearest foot? Please include work for brainliest.

Answers

Answer:

180

Step-by-step explanation: first base is 90 feet away so 90 x 2 = 180

the answer is 180…
hope this helps

What is the area of the figure below?

Answers

answer: 88in^2
explanation: by separating the figure into easier pieces, simple triangles and rectangles, this problem becomes much easier.
by looking the overall length of the figure, we get 7, if you cut off the big rectangle in the middle from that seven, you end up with a diamond with a height of 10 and a length of 4. multiply those together to get the area of the points on either side.
10 x 4 = 40
now looking back at the rectangle, by adding up the heights, you get a height of 16. multiply this with the length of 3 and you get 48.
add the two and you get the total area.
40 + 48 = 88

Answer:

68 in

Step-by-step explanation:

Because the area of the squares is 3 x 3 = 9 and because there are two squares it is 18. The area of the central figure is 50 because i divided it into 4 triangles and 2 rectangles, each rectangle is 15 in and each triangle is 5 in so 15 x 2 = 30, 5 x 4 = 20 and 30 + 20 + 18 = 68

Consider the following 8 numbers, where one labelled x is unknown.
50, 22, 42, x, 30, 42, 9, 23
Given that the range of the numbers is 66
work out 2 values of x

Answers

Answer:

x=75 or x=-16

Step-by-step explanation:

these are the two answers

maybe x=16 big maybe

What is the distance between the following points?

Answers

Answer:

Step-by-step explanation:

it's c, the square root of 36

The ratio of dye to pounds of clothing is constant. A worker develops the chart below to show the amount of dye needed for different amounts of clothing.

For which weight of clothing is the ratio of weight to dye different from the other ratios?
21 pounds
42 pounds
84 pounds
105 pounds

Answers

Answer:

Step-by-step explanation:

The answer is B, 42

The answer will be 42 pounds

Need help with math quarterly please

Answers

Answer:

should be D

Step-by-step explanation:

man I'm in geometry I just know this stuff

i neeed helppppp plssssssssssssssss

Answers

Well since there are 8 total possible outcomes you would take 8 and divide it by the total of green parts which would be 2 so you would do 8 divided by 2 which would give you 4 so your answer would be 4

Hope this helps

Answer

2/8

I’m not positive

answer in the image, PLs answer

Answers

The answer for the first question would be 3

a. 3

b. Vertical angles

c. 124 degrees

d. Supplementary (angles that add up to 180 degrees aka a straight line)

50 points! Answer AS much as you can, I give Brainliest!

Answers

Answer:

9. y = 8

10. n = 21

11. 44 = v

12. c = 35

Step-by-step explanation:

9. 9y = 72

Divide each side by 9

9y/9 = 72/9

y = 8

10. 3n = 63

Divide each side by 3

3n/3 = 63/3

n = 21

11. 4 = v/11

Multiply each side by 11

4*11 = v/11*11

44 = v

12. c/7 = 5

Multiply each side by 7

c/7*7 = 5*7

c = 35

y=8
n=21
v=44
c=35

hope that helps

How many millimeters are equal to one kilometer?

Metric
1 kilometer = 1,000 meters
1 meter = 100 centimeters
1 meter = 1000 millimeters
1 centimeter = 10 millimeters

Answers

Answer: The answer would be 1,000,000, or one million.

Step-by-step explanation:

There are 1000 millimeters in a meter, and there is the same number of meters in one kilometer. So to solve for how many millimeters are in one kilometer, just multiply 1000 by 1000 to get 1,000,000. Hope this helps!

It will equal 1,000,000 kilometres

find the missing side lengths pls help and thanks

Answers

Answer:

missing side =12 cm

Step-by-step explanation:

let missing side be x

take these ratios

15/10=18/x

do cross multiplication

10*18=15*x

180=15x

180/15=x

12=x

Answer:

(a) = 12 :)

Step-by-step explanation:

The display at an aquarium has sea stars and eels in a ratio of 4:5. It also has 5/8 as many rockfish as sea stars. There are 40 more wolf eels than rockfish. How many Sea stars are there?

Answers

4.8 sea stars were there

64 sea stars in the aquarium.

What is Ratio?

Ratio is defined as a relationship between two quantities, it is expressed one divided by the other.

Ratio of see stars to eels = S : E = 4:5

E = 5/4(S)

Ratio of rockfish to sea strars = R : S = 5:8

R = 5/8(S)

E = R + 40

5/4(S) = 5/8(S) + 40

Multiply by 8 both the sides

10S = 5S + 320

5S = 320

S = 320/5

S = 64

Hence, 64 sea stars in the aquarium

Learn more about Ratio here:

brainly.com/question/1504221

#SPJ2

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