Mathematics College

7: 8: 9 = .... : 12 : ....
plz help

Answers

Answer 1

Step-by-step explanation:

7:8:9=10.5:12:13.5.

hope this helps you.

Answer 2
Use mathdude it helps me with my math

Related Questions

Which values are solutions to the inequality below? Check all that apply.
a > 16



Someone I need help!!

Answers

Answer:

1000 and 3000

Step-by-step explanation:

how do i know my answer is reasonable

Answers

You may know your answer is reasonable if you can fact check it and get your answer or something very similar or in math, by checking your work.

Newton uses two properties ti rewrite the expression (4x23)x25 identify the properties he used why would Newton use these properties

Answers

The two properties newton used to rewrite the expression are;

- Associative Property; Because it involves change of grouping of numbers in the expression.

- Distributive Property; Because it involves distribution of a number outside a bracket to numbers inside that same bracket.

This involves algebraic properties. There are 3 major types that work on only addition and multiplication namely;

- Associative Property

- Commutative Property

- Distributive Property

Let us define each of them;

1) Associative Property; This property in algebra is one that means that no

matter how we group the numbers, we will still get the same result. e.g.

x + (y + z) = (x + y) + z.

2) Commutative Property; This property means that we can change the

order of operation and still get the same answer. For example;

p × q × r = p × r × q

3) Distributive Property; This property means that multiplying the sum of

two or more which are in a bracket by a number outside the will be equal to

the answer gotten when we multiply each number in the bracket

individually by the number outside and then adding their respective

products together. For example; p(q + r) = (p * q) + (p * r)

Newton has the expression; (4 × 23) × 25

Since it is multiplication, he can use any of the three properties above but let us use the associative and distributive properties as they are most suited to this expression.

For the associative property as shown above, he will arrive at;

(4 × 23) × 25 = 4 × (23 × 25)

For the distributive property as shown above, he will arrive at;

(4 × 23) × 25 = (25 × 4) + (25 × 23)

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Mr. Thompson asked 50 students were about their
favorite ice cream.
1/5 of the students chose Vanilla
1/2 of the students chose Chocolate The remaining chose Strawberry
How many students chose Strawberry as their favorite flavor?
What decimal represents the students who
prefer cookie dough?

Answers

Answer:

0.12 chose strawberry as their favorite

please answer both thank you

Answers

Answer: 3/4 are eqivelent to 6/8

Step-by-step explanation:

please help with #2 and #4

Answers

Answer:

Problem 2: k = 3

Problem 4: NO SOLUTION

Step-by-step explanation:

Problem 2 work:

-4/3(12k + 27) = -57 - 9k

-16k - 36 = -57 - 9k    -ADD THE -9k TO ITSELF AND TO -16k-

-7k - 36 = -57     -ADD THE -36 TO ITSELF AND -57-

-7k = -21

k = 3

Problem 4 work:

5/2(6w - 16) = 18w -(3w + 40)

15w - 40 = 18w - 3w - 40    -ADD THE -3w TO THE 18w-

15w - 40 = 15w - 40

NO SOLUTION BECAUSE BOTH SIDES ARE THE SAME

Answer:

5;:':;;gighifighfutfdyfuhufgfyhxfkcy

The slope of Consider the line whose equation is 3x + y - 3 = 0. The slope of any line that is parallel to this line is any line that is perpendicular to this line is​

Answers

Answer:

parallel : y = -3x + 3

perpendicular : y = 1/3x + 3

Step-by-step explanation:

rewrite 3x + y - 3 = 0

y = -3x + 3

parallel has the same slope

so

parallel : y = -3x + 3

perpendicular is negative reciprocal of the slope

so

-3x becomes 1/3x

so

perpendicular : y = 1/3x + 3

f(x)=3x²-4x+2, what is f(-5), show work​

Answers

Given f (x) = 3x^2 - 4x + 2; What is f (-5)

f (-5) = 3x^2 - 4x + 2

f (-5) = 3(-5)^2 - 4(-5) + 2

f (-5) = 3(25) - 4(-5) + 2

f (-5) = 75 + 20 + 2

f (-5) = 97

or

( -5 , 97 )

-3x-2y-3z=5

x+2y-z=-19

-2x+y-2z=1

Answers

9514 1404 393

Answer:

  (x, y, z) = (-9, -1, 8)

Step-by-step explanation:

My calculator tells me the reduced row-echelon form of ...

  [tex]\left[\begin{array}{ccc|c}-3&-2&-3&5\\1&2&-1&-19\\-2&1&-2&1\end{array}\right][/tex]

is ...

  [tex]\left[\begin{array}{ccc|c}1&0&0&-9\\0&1&0&-1\\0&0&1&8\end{array}\right][/tex]

This means the solution is (x, y, z) = (-9, -1, 8).

_____

Additional comment

In case you haven't learned how to use your graphing calculator to solve matrix equations, you can solve this system easily as follows:

Subtract 2 times the first equation from 3 times the third equation. This eliminates the x and z terms and gives you the value of y. (y=-1)

Substitute that value into the first and second equations. This gives you two equations in the sum and difference of x and z. (You may need to divide the coefficients by the common factor.) Add these sum and difference equations to find one of the variables, then substitute to find the other.

I really need this so please hurryy for a test btw ppppp

Answers

Should be the square root of 34 or about 5.8


For v = -3(r - 3) when r= -1, what does v equal

Answers

Answer: 12

Step-by-step explanation:

v = -3(-1-3)

v= -3(-4)

v= 12

WILL MARK BRAINLIEST REAL ANSWERS ONLY

Mark can read 20 pages of a book in 1 hour. His school assignment is to da 260 page book. Track how many hours he has left to read. Number of Pages left hours to read. What is the unit rate? And write an equation for the line. (also please help me graph it)​

Answers

Answer:

for the table

x y

0 260

1 240

2 220

3 200

Unit Rate is -20

we know this because the question tells us, he reads 20 pages per hour

the equation would be

y = -20x + 260

What is 12*12 in active numbers?

Answers

12 times 12 is 144 :)

Answer:

144

Step-by-step explanation:

12x12= 144

1. A rectangular canvas picture measures 12 inches by 28 inches. The canvas is mounted inside a frame of uniform width, increasing the total area covered by both canvas and frame to 612 square inches. Find the uniform width of the frame.​

Answers

The uniform width of the frame is 16.61 inches.

Since a rectangular canvas picture measures 12 inches by 28 inches, and the canvas is mounted inside a frame of uniform width, increasing the total area covered by both canvas and frame to 612 square inches, to find the uniform width of the frame you must perform the following calculation:

√ (612 - (28 x 12)) = X √ (612 - 336) = X √276 = X 16.61 = X

Therefore, the uniform width of the frame is 16.61 inches.

Learn more in https://brainly.com/question/15218328

Someone please help on this problem

Answers

Answer:

b

Step-by-step explanation:

Select the best answer for the question.
11. Which of the following is a mixed number?
O A.25
O B.5/2
C. 2.3
O D.2/ 1/2

Answers

Answer:

c

Step-by-step explanation:

What is the domain and range of the function
graphed below?

Answers

A
this is because it is not infinite since there are not arrows and domain is all the possible c values while range is all the possible y values. Therefore when analyzing the graph we can see it starts at x=2 and ends at x=10 which is the domain. we can also see the lowest y value is 1 while the highest is 3 which is the range :)

John's phone bills for the last five months are $24.71, $22.13, $19.87, $27.33, and $26.76.
Find John's mean phone bill over this period.

Answers

Answer:

$24.16

Step-by-step explanation:

Which data set has the same standard deviation as the data set {2,2,5,6,8}?

A. {3,4,4,7,7}
B.{5,6,5,6,5}
C.{3,3,6,7,9}
D.{4,4,5,5,5}

Answers

Answer:

C

Step-by-step explanation:

Answer:

c

Step-by-step explanation:

Joshua delivered 30 hives to the local fruit farm. If the farmer has paid to use 5% of the total number of Joshua’s hives, how many hives does Joshua have in all?

Answers

Answer:

600 hives

Step-by-step explanation:

If 30 is 5% of the total number of hives Joshua has, then 5%x20=100%

So, 30x20=100%

      30x20=600

hope it helped :)

81 is what percent of 90?​

Answers

Answer:

72.9

Step-by-step explanation:

hope it helps you out

please mark brainiest

Answer:

81 Out of 90 is 90%.

Step-by-step explanation:

Follow the below steps to calculate what percent is 81 out of 90 or how to write 81/90 as a percentage.

Step 1: Percentage Formula = Number1/Number2 x 100

Step 2: plugin the 81 and 90 to the percentage formula and we get 81/90 x 100 = 90%

hope this helps!

(can u mark brainliest)

What is the value of x? 3/4x−4−5/8x=−3

Answers

Answer:

here.

3/4x−4−5/8x=−3

or, 3/4x−5/8x=−3+4

or, 3/4x−5/8x=1

or, 3*2/2*(4x)-5/8x=1

or,6/8x-5/8x=1

or,(6-5)/8x=1

or,1/8x=1

or,1=8x

or,x=1/8

A water hose had filled up of 1/2 a pool after 1/2 of an hour. At this rate, how
many hours would it take to fill the pool?

Answers

Answer:

1 hour

Step-by-step explanation:

1/2 hour:1/2 pool

1/2x2 hour:1/2x2 pool

1 hour: 1pool

2+31×1/10+14×1/100 is greater smaller or equal to 2.324 and 14+72×1/10+4×1/1000 is greater than smaller than or equal to 21.24 and 0.3×10 to the second power +0.007×10 to the third power is bigger than small that are equal to 0.3×10+0.7×10 to the second power

Answers

Answer:

3457

Step-by-step explanation:670

Anybody a expert or really good at social studies cuz I really need that help answer ASAP

Answers

bbc because its super big like super big

Step-by-step explanation:

Hey ! Can anyone help me with this question please ? Thank you

Answers

Answer:

x = 102°

Step-by-step explanation:

a straight line = 180°

180 - 78° = 102°

Answer:

x°+78°=180°[supplementry angle]

x°=180°-78°

x°=102°

answer

Suppose that Paul's checking account shows a balance of $725.35 at the beginning of the month. During this month,
he makes deposits of $472.25, $175.35, $194.50, and $317.85, and he writes checks for $150.30, $237.60,
$45.75, and $257.85. Find the end-of-the-month balance in his account.

Answers

Answer:

$ 1,193.80

Step-by-step explanation:

Balance + deposits =

725.35+472.25+175.35+194.50+317.85 = $ 1,885.30

$1,885.30 - withdrawals =

1885.30 - 150.30-237.60-45.75-257.85 = $ 1,193.80

ANSWER QUICK PLEASE!!
combine like terms. 8x + 3 - 5x + 9
A. -13x - 12
B. 13x + 12
C. 3x - 6
D. 3x + 12
NO LINKS OR WEBSITES!!

Answers

Answer:

D

Step-by-step explanation:

8x-5x+3+9=3x+12

combine like terms

So in algebra you always add letter separately and number separately

8x-5x=3x
3+9=12
So the answer would be:
3x+12
So D

write an addition equation or subtraction equation your choice to describe the diagram. I'll Mark brainest​

Answers

Answer:

[tex]0+2-4=-2[/tex]

Step-by-step explanation:

We start at 0 and move 2 to the right to get to 2. Then, we move 4 to the left to get to -2.

So, our equation is [tex]0+2-4=-2[/tex], the 0 being our starting point, the +2 coming from moving to the right 2, the -4 coming from moving to the right 4, and the -2 being our end point.

Use the drop-down menus to choose steps in order to correctly solve
4k−6=−2k−16−2 for k.

Answers

Answer:

down menus to choose steps in order to correctly solve

down menus to choose steps in order to correctly solve4k−6=−2k−16−2 for k.

Anw.

-2

ep.

4k - 6 = -2k - 16 -2

4k - 6 = -2k - 18

4k - 6 + 2k = -18

4k - 2k = -18 + 6

6k = -18 + 6

6k = -12

k = -2

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