Mathematics Middle School

i will mark u brainlest

I Will Mark U Brainlest

Answers

Answer 1

Answer:

48/25

Step-by-step explanation:

\(-1\frac{3}{5} / \frac{5}{-6} \)

-\(\frac{-8}{5} / \frac{5}{-6} \)

\(\frac{-8}{5} * \frac{-6}{5} \)

\(\frac{-8 * -6}{5 * 5} \)

48/25

Answer 2

Answer:

48/25

Step-by-step explanation:

Change -1 3/5 into an improper fraction.
-8/5 ÷ 5/-6 = - 8/5 ÷ - 5/6

Keep Change Flip (KCF)

- 8/5 × - 6/5

Negative × Negative = Positive

8/5 × 6/5

Multiply the numerators to get 48.

Multiply the denominators to get 25.

Answer = 48/25


I hope this helped and please mark me as brainliest!

Related Questions

-2x+8=14?
X=-3 but I need an explanation!

Answers

X = 3 because 2 times 3 equals 6 and 6 plus 8 equals 14.
-2x+8=14
-2x=6
X= - 2.3/2
X= -3

How are exponents and powers different?
(DON'T GOOGLE IT!)

Answers

Answer:

The power is larger than the exponet

Step-by-step explanation:

A power is the product of multiplying a number by itself. A power is represented with a base number and an exponent. The base number tells what number is being multiplied. The exponent, a small number written above and to the right of the base number, tells how many times the base number is being multiplied.

Why is the ratio of two integers always a rational number?

Answers

Answer: Rational numbers are numbers that can be written as a ratio of two integers.

Step-by-step explanation:

Answer: By definition, that is why they are called rational. They usually look like fractions: an integer in the numerator and an integer in the denominator.

Step-by-step explanation: Decimal equivalents of fractions are also rational numbers. Some decimal equivalents are not actually rational because the values they represent are not rational. For example: Pi. and the square roots of most integers 2,3,5,6...

what is the equation of this line

what is the equation of this line

Answers

Answer:

y=4x-6

Step-by-step explanation:

The equation of the line is y=mx+c where m is the slope and c is the intercept.

To find the slope, take two points \((x_{1},y_{1})\) and \((x_{2},y_{2})\) and use the equation \(m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}}\). Let's take (1,-2) and (2,2) as our two points:

\(m=\frac{2-(-2)}{2-1}=\frac{4}{1}=4\)

The y-intercept is where the line crosses the y-axis. We can see from the graph that the line crosses the y-axis at -6, therefore c= -6.

Now we can write the equation of this line: y=4x-6

Answer:

The answer is y=4x-6

Some students recorded how many minutes they spent on the phone in one day. They put the results in a Stem-and-Leaf Plot.



What is the mean number of minutes spent on the phone?

Some students recorded how many minutes they spent on the phone in one day. They put the results in a

Answers

Answer:   31

Explanation:

The data from the stem-and-leaf plot is:

10,

24,25,26,

30,30,32,33,

40,45,46

Add up those values

10+24+25+26+30+30+32+33+40+45+46 = 341

Then divide over n = 11 which is the sample size.

341/11 = 31 is the arithmetic mean.

Answer:

341/11 = 31 is the arithmetic mean.

Step-by-step explanation:

Find the measure of the exterior angle. (I'm assuming it's easy I'm just bad at math.)

Find the measure of the exterior angle. (I'm assuming it's easy I'm just bad at math.)

Answers

you will do area for a triangle . when multiplying with the (x+9) you will just multiply the number infront of the parentheses by both the x and the 9. for example the 60 would be 60(x+9) which would be 60x+540
60+x+9=2x then solve for x. x=69
plug in 69 to the exterior angle which is 2x. 2(69)=138°

brainliest and 18 points

Simultaneous equation 3x+2y=16, 2x-3y=2​

Answers

Solve for the first variable in one of the equations, then substitute the result into the other equation. (4,2) or x=4 y=2

Help me please! Bookwork code:k90

Help me please! Bookwork code:k90

Answers

Answer:

Step-by-step explanation:

Let’s mark the Triangle Points as Point A, Point B, Point C.

Point A = 1x°

Point B = 2x°

Point C = 3x°

We know that the Angle Sum of a Triangle is equal to 180°.

So, Point A + Point B +Point C = 180°

   = 1x° + 2x° + 3x° = 180°

   = (1 + 2 + 3)x° = 180°

   = 6x° = 180°

   = x° = (180/6)°

   = x° = 30°

|  —                                 —  |

|   Point A = 1 * 30° = 30°    |         ⇒

|   Point B = 2 * 30° = 60°   |         ⇒          Only Extra Information

|    Point C = 3 * 30° = 90°  |         ⇒

|  —                                 —  |


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Mark BRAINLIEST

Let
Point A- 1x
Point B- 2x
Point C- 3x

We know that Angle sum property of a triangle states that the sum of angles of a triangle is 180•
So 1x+ 2x+ 3x = 180
Take X out as common
(1+2+3)x = 180
6x= 180
x=180/6
x= 30•
Which is your answer

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A tree is 55 inches tall and grows 4 inches each week. Write an equation that represents the tree’s height (h) over time (t). How tall will the tree be in 5 weeks?

Answers

h=55+4t
The tree will be 75 inches in 5 weeks.

Answer:

75

Step-by-step explanation:

55+(HxT)= a

55+(4x5) = ?

4x5 = 20

55+20= 75

Which Structure is the control center of both plant and animals cell?

A. Nucles

B. Cytoplasm

C. Cell Membrane

D. Vacuole.

Answers

Answer:

A) Nucleus

Step-by-step explanation:

By housing the cell's genome, the nucleus serves both as the repository of genetic information and as the cell's control center. DNA replication, transcription, and RNA processing all take place within the nucleus, with only the final stage of gene expression (translation) localized to the cytoplasm.

The answer should be cytoplasm

Hey you! Want to help me out here?

Hey you! Want to help me out here?

Answers

B would be the correct answer, 300 is how much you have and 59.48 is how much you’ve spent. You cannot go over 300 and you also have x so the equation is b. 59.48 + x <= 300

What is the value of x and the measure of ∠DBC, respectively?

A. x = 3; ∠DBC = 9
B. x = 36; ∠DBC = 108
C. x = 18; ∠DBC = 36
D. x = 18; ∠DBC = 54

What is the value of x and the measure of DBC, respectively?A. x = 3; DBC = 9B. x = 36; DBC = 108C. x

Answers

Answer:

Hmm i don't know is A B C D

CBA should be hmm 90 degrees I think

Then you should be able to calculate

it's so easy

Step-by-step explanation:

Answer:

D. x = 18; ∠DBC = 54

Step-by-step explanation:

m∠ABD + m∠CBD = 90°

2x + 3x = 90°

5x = 90°

x = 18°

m∠DBC = 3x

m∠DBC = 3(18°)

m∠DMC = 54°

5 1/4, 90 cm ,6 cm find the height of this prism

Answers

Answer: I think it is 13 cm

Step-by-step explanation:

I think the answer is 13cm

Wat is the product of 8/9 and 2/7

Answers

Answer:

16/63

Step-by-step explanation:

Given problem,

→ (8/9) × (2/7)

Let's solve the problem,

→ (8/9) × (2/7)

→ (8 × 2)/(9 × 7)

→ 16/63

Hence, answer is 16/63.

Please answer the question

Please answer the question

Answers

The height of the dead tree is 16 feet

The direction in which the tree should fall is Northeast, Northwest, Southeast, Southwest.

How to solve

From the given question, since the ray is straight, AC is parallel to DF

Meanwhile triangles ABC and DEF are right angles,

AB/DE =BC/EF

AB/6 = 8/3

AB= 16 feet.

Thus, the height of the tree is 16 feet.

Since 16 ft> 15ft> 14ft> 13ft> 12ft

Therefore, the direction which the tree is falling is Northeast, Northwest, Southeast, Southwest.

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Please answer the question

I need help fast!!!! 20 points and brainliest to whoever gets it right

I need help fast!!!! 20 points and brainliest to whoever gets it right

Answers

Answer:

rational numbers - 5.01212121212..., -5/250, √400

irrational numbers - √1000, ∛30, 0.01562138411...

Explanation:

rational numbers are any numbers that can be expressed as a ratio. whole numbers and integers are also counted as rational numbers.

5.01212121212... is a recurring number, which means that it can be written as a fraction. therefore, it is a rational number.

√1000 cannot be expressed as a fraction, which makes it an irrational number.

∛30 cannot be expressed as a fraction, so it is irrational.

-5/250 is a fraction, making it a rational number.

0.01562138411..., also cannot be expressed as a fraction since it is a non-terminating number. it is irrational.

√400 = 20, which is a whole number, thus it is rational.

i hope this helps! :D feel free to comment if you need to ask me anything.

Answer:

Imma just tell you

Step-by-step explanation:

The one above is so precise and right! There is no way of me beating that explanation, so Imma tell ya'll- THE ONE ABOVE THIS ONE IS ABSOLUTELY CORRECT! ~ Thank you

Which of the following expressions is equivalent to 75-105n ​?

Which of the following expressions is equivalent to 75-105n ?

Answers

Answer:

A. 15( 5 - 7n)

Step-by-step explanation:

\(15 \times 5 + 15 \times - 7n\)

\(75 - 105n\)

Answer:

It is A and E

Step-by-step explanation:

It is A and E because if you use the distributive property, mailman which is outside the parentheses multiplies the two numbers inside. And you do that to check every problem.

15 POINTS IF SOMEONE ANSWERS QUICK

15 POINTS IF SOMEONE ANSWERS QUICK

Answers

Answer:

The 16 cases will fit the box as shown.

Step-by-step explanation:

One disk case has the dimensions 14.2 cm by 19.3 cm, with thickness 1.6 cm.

Temporarily ignoring the 14.2 cm and 19.3 cm measurements, we multiply this 1.6 cm thickness by 16, obtaining a total thickness for the stack of cases of 25.6 cm.  

1) The 16 cases, arranged as shown, and measuring 25.6 cm from left to right in this diagram, will fit within the 26 cm horizontal distance shown.

2) The horizontal length of each case is 14.2 cm.  Stacked as shown, the 16 cases will fit within the 15 cm depth of the box.

3) The vertical measurement of each case is 19.3 cm.  The 20 cm vertical measurement of the box can accommodate this 19.3 height within 20 cm.

All indications are that the 16 cases will fit comfortably inside the box.

Answer:

16 discs capacity of the cuboid.

Step-by-step explanation:.

for simplicity...

i would just divide 26cm to 1.6cm = 16 .25

therefore,  16 discs capacity of the cuboid.

Solve by graphing

Y=5x-1
Y=5x+10

Answers

Can you try putting these on a graph and then show your work and I can help
Your first graph:
points:
(0,-1) (1,4) (2,9)

Should look something like the green line, you put a point at (0,-1) for your Y intercept, then you do your slope which is the 5 in 5x. 5 is the same thing as 5/1 so you rise 5 up and run 1 to the right which will bring you up to (1,4) then you rise and run again to get at point (2,9).

Second graph:
points:
(0,10) (1,15) (2,20)

Should look something like the blue line, you put a point at (0,10) for the y intercept, then you do your slope of 5, just like the last one. You would go up 5 and over 1 (rise over run) to get (1,15) and again to get (2,20)
Solve by graphing Y=5x-1Y=5x+10

WILL GIVE BRAINLIEST!!

WILL GIVE BRAINLIEST!!

Answers

Triangle AEC =Triangle AFC by reason GIVEN

Answer:

AEC=AFC

Step-by-step explanation:

Please give Brainliest.

Since all their sides are equal, the triangles are equal

In 2020, Forest A had an area of about 4000 acres and Forest B had an area of about 3600 acres. Researchers expect deforestation to cause the area of Forest A to decrease at a rate of 105 acres per decade and the area of Forest B to decrease at a rate of 30 acres per decade. In what year do they expect the areas of the forests to be the same?

Answers

Answer:

In about 2073, 3440 acres

Step-by-step explanation:

Determine the equation for each forest.                                                      Forest A: y=-105x+4000                                                                         Forest B: y=-30x+3600There are a number of ways to solve a system of equations, but for this we are first going to solve for x when -105x+4000=-30x+3600. In this case, x=5 1/3.Then, we are going to plug 5 1/3 in as x into one of our equations. To double check you have this right, you may do both. If our equation is y=-30(5 1/3)+3600, then y=3440.Add 5 1/3 decades or about 53 years to 2020.

Therefore, they expect the area of the forests to be the same in about 2073. At this time, both will have an area of about 3440 acres.

In 2073  the areas of the forests to be the same.

What is Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides. LHS = RHS is a common mathematical formula.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given:

Forest A had an area of about 4000 acres and Forest B had an area of about 3600 acres.

If Forest A to decrease at a rate of 105 acres per decade and the area of Forest B to decrease at a rate of 30 acres per decade.

let the number of decades occur be x

So, the equation is

4000 - 105x= 3600 - 30x

400 = 75 x

x= 5.33

x= 53.3 years

Hence, In 2073  the areas of the forests to be the same.

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Which list orders the numbers from least to greatest?

Negative 2.4, negative 1.5, negative 2 and one-fourth, negative 3, negative 1 and one-eighth

A number line going from negative 4 to positive 4.
Negative 1 and one-eighth, negative 1.5, negative 2 and one-fourth, negative 2.4, negative 3
Negative 3, negative 2.4, negative 2 and one-fourth, negative 1.5, negative 1 and one-eighth
Negative 3, negative 2 and one-fourth, negative 2.4, negative 1 and one-eighth, negative 1.5
Negative 1.5, negative 1 and one-eighth, negative 2.4, negative 2 and one-fourth, negative 3

Answers

Negative 3, negative 2.4, negative 1.5, negative 2 and one-fourth, negative 1 and one-eighth


Hope my answer helps you✌️

Negative 3, negative 2 and one-fourth, negative 2.4, negative 1 and one-eighth, negative 1.5 is the list that orders the numbers from least to greatest.

Help pls. Also wdym this is to short yk why so long >:/

Help pls. Also wdym this is to short yk why so long &gt;:/

Answers

Answer:

Y= mx + b

so Y = 1/3x + 2

just substitute

Due to the answer requesting slope intercept form, one shall use the points (3,2) in order to substitute for b. Slope intercept form is formatted in y = mx + b, which m would be your slope, which in this particular problem was given; therefore, y = 1/3x +b.


Now, we shall use points (3,2) as the substitutes for the solution for b, which 3 would be the input and 2 would be y.


Therefore, 2 = 1/3(3) + b
2 = 1 + b, therefore, one would be subtracted from 2 which would give us the answer of b equaling to one. Thus, y = 1/3x + 1

Simplify the expression. Explain each step. 3+(b+8)= 3+(8+b)

Answers

Answer:

you are using the commutative property of addition

It means that you can switch them around

3+(b+8)=3+(8+b) 3b+24=24+3b. Combine like terms like 3b+3b=6b. 6b+48 divide both sides by 6. b=8

About 3.2×10^8 people live in the United States. About 3.9×10^7 people live in Canada. And about 1.1×10^8 people who live in Mexico. About how many people live in all three countries altogether?

Answers

Answer:

469000000

Step-by-step explanation:

4.9*10^(8)

Answer would be:

469000000

A shipping box is shaped like a rectangular prism. What is the volume of the box? Write your answer as a mixed number in simplest form.

A shipping box is shaped like a rectangular prism. What is the volume of the box? Write your answer as

Answers

Answer: 976 1/2 IN 3

Step-by-step explanation:

the figure is a rectangle the formale forcalculating the volume of a rectangle bady is the product of the length, width and height. so v=10 1/2 x 7 3/4 x12 = 21/2 x 31/4 x12 = 1953/2 = 976 1/2 IN 3.

hope this helps!

You do length times width times height equals your volume
10/1/2x12x7/3/4= 976.5
V=976.5 or 1953/2 in fraction

James buys 4 pens for $3. Which three points lie on the line that best represents the total cost, y, of x pens?
Which order pair is NOT on the line that best represents this relationship?
Responses (8,6) (4,3) (0,0) (6,8)

Answers

James buys 4 pens for $3, so each pen costs $3/4. The total cost of x pens is $3x/4.

The points (0,0), (4,3), and (8,6) all lie on the line y = $3x/4. The point (6,8) does not lie on this line.

Therefore, the answer is (6,8).

Kara and Nathan are each painting a poster for the school dance. Their posters have the dimensions shown in the table.

Student Poster Length (ft) Poster Width (ft)
Nathan L112 W112
Kara L334 W334

How many times greater is the area of Kara’s poster than Nathan’s? Write in simplest fraction form.

Answers

It’s 8.89317 times greater. Normally u find an area of a rect thru lw so j do that but make it a proportion. (334x334)/(112x112)=8.9317

Kara's poster is 8.89 times greater than Nathan's poster.

What is the area of the square?

The square is defined as a quadrilateral having all the sides equal to each other. The angle suspended by all the sides of the square is 360 degrees.

Given that the dimensions of Nathan's painting are L112 W112 and the dimensions of Kara's painting are L334 W334.

The areas will be calculated as below:-

Nathan  = 112 x 112 = 12544

Kara = 334 x 334 = 111,556

To calculate how many times greater the area of Kara’s poster than Nathan’s divide Kara's area by Nathan's area.

Kara / Nathan  = 111556 / 12544 = 8.89

Kara = 8.89 x Nathan  

Therefore, Kara's poster is 8.89 times greater than Nathan's poster.

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Change 80% to a fraction. 4/5 4/10 4/100 4/50

Answers

Answer:4/5

Step-by-step explanation:

80% means 80/100 in fraction. We have to simplify the fraction by 80÷20 and 100÷20 = 4/5

So the answer is 4/5.

Answer:

Step-by-step 80 percent is 80\100 so

For the first one (4\5) 5x20=100 and 4x20=80 which is 80\100

so it should be 4\5

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The snail moved 6 inches in 120 minutes. What was the average speed of the snail in inches per minute?​

The snail moved 6 inches in 120 minutes. What was the average speed of the snail in inches per minute?

Answers

Answer:

Option A) Speed = 1/20 of an inch per minute

Step-by-step explanation:

Given:

Distance = 6 inches

Time = 120 mins

Required:

Average Speed = ?

Formula:

Average Speed = Total Distance Covered / Total Time Taken

Solution:

Speed = 6/120

Speed = 1/20 of an inch per minute

Answer:

\(\frac{1}{20}\) of an Inch per minute

Step-by-step explanation:

Speed = Distance ÷ Time

So....

6 ÷ 120 = 0.05 or \(\frac{1}{20}\)

Also by process of elimination

\(\frac{1}{2}\) of an inch per min would complete 6 inches in 12 min.

2 inches per min would complete 6 inches in 3 min

20 inches per minute would complete 6 inches in a few seconds.

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