Mathematics High School

solve

12 - y = 5

could you explain how to do it :]

Answers

Answer 1

Answer:

this is

12-y=5

12-y =5

y=5- 12

then y=7

could you see this this correct

Answer 2

Answer:

7

Step-by-step explanation:

do 12-5 which is 7

that is the answer

you need to find which number needs to be subtracted from 12 to make 5!

Related Questions

A rectangular book measures 4 x 7. What is the length of its
diagonal?

Answers

pythagorean theorem tells us a^2 plus b^2 is c^2, in this case a would be 4, b is 7, and c is the diagonal. 16+49 is the c^2, so the diagonal is about 8

A rectangular book measures 4 x 7, the length of its diagonal is √65.

Pythagorean theorem states that in a right triangle, the square of the length of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the lengths of the other two sides.

In mathematical terms, if a and b represent the lengths of the two shorter sides (also known as legs) of a right triangle, and c represents the length of the hypotenuse, then the Pythagorean theorem can be expressed as:

a² + b² = c²

Given:

Base = 4

Length = 7.

To determine the length of diagonal by using  Pythagorean  theorem.

Diagonal² = Base² + Length²

Plugging the values in Pythagorean  theorem.

Diagonal² = 4² + 7²

Diagonal = √(16 + 49) =√65.

Therefore, the length of diagonal of book is √65.

Learn more about Pythagorean  theorem here:

https://brainly.com/question/14930619

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A jar contains 21 marbles: 8 white, 3 green, and 10 red. Write the described ratio in simplest form.

A. number of white marbles to number of green marbles.

Answers

Answer:

The question you posted was a bit confusing for me, but I'm assuming that you want the simplified ratio of the number of white marbles to the number of green marbles.

The answer would be 8:3.

Step-by-step explanation:

There are 8 white marbles and 3 green marbles, so you get 8:3. And since 8 and 3 are relatively prime, no simplifying is needed.

The answer is 8:3.

Convet: 200m into cm
and km​

Answers

Answer:

200m = 20,000 cm

200m = 0.2 km

Step-by-step explanation:

Will Mark Brainliest

Solve each system by elimination. Show your work

3х – 10 y = 14
3х – 9y = 15

Answers

Answer:

subtracting both equations

3x-10y=14

3x-9y=15

- - =-

_________

0-y=-1

y=1

then putting the value of y in first eqn

3x-10×1=14

3x=24

x=8

so x is 8and y is 1

Evaluate the expression 12 - 3y +420-4) for y = 3.
2

Answers

Answer:

56

Step-by-step explanation:

What is the value of a? ​

Answers

Answer:

9

Step-by-step explanation:

Translate the following into an algebraic expression: "five less than the product of 7 and
the square root of a number" can be written as:
05-713
o 5 - 70
O TX-15
073-5

Answers

Answer:

7√x - 5

Step-by-step explanation:

Let the number be x

The product of 7 and  the square root of a number is expressed as;

7 * √x

= 7√x

five less than the product of 7 and  the square root of a number will be expressed as;

7√x - 5

Hence the required expression is 7√x - 5

Which of the following would be in the solution set to the system of inequalities given below?

(-4,0)
Both (-4,0) and (0,2)
No solution
(0,2)

Answers

Answer:

(-4,0)

Step-by-step explanation:

plzz follow me

(-4,0) is the solution of the set to the system of inequalities

What is Inequality?

a relationship between two expressions or values that are not equal to each other is called 'inequality.

The given two inequalities are

y<-3x-6 and 4x-2y<-8

Let us check for (-4, 0)

0<-3(-4)-6

0<6

4x-2y<-8

4(-4)-2(0)<-8

-16<-8

So (-4, 0) is the solution of the inequalities.

Now let us check for (0, 2)

replace y value as 2 and x as 0.

2<-3(0)-6

2<-6

Which is not true.

Hence, (-4,0) is the solution of the set to the system of inequalities.

To learn more on Inequality click:

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Look at the data points on the graph

Is this relationship a function?

Answers

It issssssssssssssssss 1,1
No, usint the vertical line test, the dots on 2A and 2B will line up with each other, proving it isnt a function.

please help me asap !!​

Answers

Answer:

obtuse is the anwer

obtuse i think, should be did you get it right :)

Solve for the missing variable plzz

Answers

Answer:

3

Step-by-step explanation:

simplify m^12/m^3 pleaseeeee help meeeee

Answers

Answer:

m^12-3

m^9 is the answer

Step-by-step explanation:

Answer

M^9

Step by step

The coach of a track team is standing on
the outside of a circular track. What is the
maximum distance he can be from one of
his track teammates if the distance from the
coach to the center of the track is 52.4
· feet? Explain how you know your answer is
correct.

Answers

,.....................

solve x for triangle

Answers

Answer:

x = 69

Step-by-step explanation:

By exterior angle theorem:

x° + 43° = 112°

x° = 112° - 43°

x ° = 69°

x = 69

Solve This Proportion Y/23= -3/4 ​

Answers

Answer:

y = -17.25

Step-by-step explanation:

y/23 = -3/4

by cross multiplication ❌ ;;;

4×Y = 23× (-3)

4y = (-69)

y = -69/4

y = -17.25

I hope that this answer helps you

The blue dot is at what value on the number line?
+
+
3
+
9
?

Answers

Answer:

it is answer is -3,

please mark brainlest

Answer:

It's -3

Step-by-step explanation:

You subtract by 3 every time you go down the number line. So if the highlighted line is 2 lines from 3 it is -3.

write an expression for 5 less than x

Answers

Answer:

x-5

Step-by-step explanation:

What is the answer to this?

Answers

Answer:

The answer is (1,-5)! Try using Desmos graphing calculator next time as well :)

Step-by-step explanation:

-6.4 = z/6
what does z =?​

Answers

Answer:

-38.4

Step-by-step explanation:

Multiply both sides by 6 to get rid of the /6 then you would get z alone

Answer:YOUR ANSWER IS.......

35 HOPE U HAVE A GOOD DAY <3

Step-by-step explanation:THANK YOU FOR YOUR TIME!

Write the standard equation of the circle.

I’ll give brainliest!

Answers

The answer is 10 you’re welcome

Select the correct answer.
If the zeros of a quadratic function are 3 and 8, what are the factors of the function?
ΟΑ.
(X + 8) and (x - 3)
OB.
(x - 8) and (x + 3)
O C.
(X + 8) and (x + 3)
OD.
(x - 8) and (x-3)

Answers

Answer:

OD

Step-by-step explanation:

The zero x=8 will make the factor (x-8) = 0 and the zero x=3 will make the factor (x-3) = 0.

so it's (x-8) and (x-3)

7th grade math please help me will give brainliest

Answers

Answer: 67.27

Step-by-step explanation:

7.1 x 7.1 for the square = 50.41

7.1 divided by 2 = 3.55

3.55 x 4.75= 16.86

Normally here you would divide by 2, but you don’t need two because there is 2 triangles that are the same

Add the 50.41 and the 16.86 and you have your answer!

Answer:

16.86 square units

Step-by-step explanation:

I think this is the answer.

I need help with this

Answers

Answer:

the second one, third one

Step-by-step explanation:

you can expand using the distributive property

what is the sum of the 14th square number and the 6th square number?

Answers

14th square number = 196

6th square number = 36

solve for N
3(3n – 4) = -48

Answers

9n - 13 = -48
+13

9n = -35
/9 /9

N= -3.888

Answer:

n=-4

Step-by-step explanation:

3(3n-4)=-48

First use the distributic property and then add and divide from both sides of the equation.

9n-12=-489n=-36n=-4

7th grade math please help

Answers

Answer:

3.8 x 4.5

+

3.8 x 5.1 divided by 2!

Step-by-step explanation:

You can turn it into 2 squares, or follow the hints!

4x³y²/4yx²•y⁴


I need to simplify that ^^

Answers

hopefully this helps

Beth wants to paint the four walls of her rectangular bedroom. Her room is 10 feet wide, 13 feet long, and 8 feet high. She will not paint her
rectangular door, which is 3 feet wide and 7 feet high.
What is the total area of the walls that Beth needs to paint?

Answers

Answer:The answer is 1040

Answer:

Okay so Basically I looked at all the answers people are given and I narrowed it down. Its either 1040 or 1019

Step-by-step explanation:

At her restaurant .Yolanda open 285 cans of tomato sauce .She need to use 4 can of for one pan of lasagna how many pans of lasagna could yolanda make if she uses all if she all the cans what is the answer in a mixed numder

Answers

Answer:

71 1/4 pans of lasagna

Step-by-step explanation:

4 cans of tomato sauce = 1 pan of lasagna

285 cans of tomato sauce = x pan of lasagna

4 = 1

285 = x

Cross product

4*x = 285*1

4x = 285

x = 285/4

x = 71 1/4 pans of lasagna

n + 10 = 8 + 4

find the value of n. ​

Answers

Answer:

n=2

Step-by-step explanation:

8+4=12

12-10=n

n=2

N is equal to 2. 8+4 is 12 which leaves you with n+10=12 so then you subtract 10 from 12 which gives you n=2
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