MATHEMATICS HIGH SCHOOL

Simplify:

-5x - 2(3x - 7) + 4(3x - 5) - (6x -9)

Answers

Answer 1
Answer:

Answer:

7x+3

Step-by-step explanation:

-5x+6x+14+12x-20-6x+9

combine like terms

7x+3

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At a carnival, food tickets cost $2 each and ride tickets cost $3 each. A total of $1,240 was collected at the carnival. The number of food tickets sold was 10 less than twice the number of ride tickets sold.The system of equations represents x, the number of food tickets sold, and y, the number of ride tickets sold. 2x + 3y = 1240 x = 2y – 10 How many of each type of ticket were sold?

Solve for x. x² + 6x + 9 = 12 ​​ ​ x=−9±4 √3 ​ ​​ ​ x=−3±4 √3 ​ ​ ​ x=−9±2 √3 ​ x=−3±2 √3

Answers

Answer:

9

Step-by-step explanation:

x2+3x+3x+9=12

(x+3)(x+3)=12

x+3=12

x=9

The slope of a line is represented by the variable _____. X y m b

Answers

Answer:

Option (c) is correct.

The slope of a line is represented by the variable 'm'

Step-by-step explanation:

Given : The slope a line

We have to choose which variable is used to represent the slope of a line.

Since, the general equation of line is represented by the equation

y = mx + c ,

where m is slope

and c is y intercept.

So , we represent the slope of line by the variable 'm'

Thus, The slope of a line is represented by the variable 'm'
M is the slope.-X is an independent variable.Y is a dependent variable.B is the where the line crosses the Y-axis.

Of the 600 people at a music festival, 420 had attended the previous year. How many people out of 100 had attended the previous year?A: 60
B: 42
C: 70
D: 80

I think it is 60

Answers

There are 70 people out of 100 who had attended the previous year.

Given

Total number of people at a music festival = 600

The number of people attending the festival = 420

What is the ratio?

The quantitative relation between two amounts shows the number of times onevalue contains or is contained within the other:

Let, The number of people out of 100 who had attended the previous year be x.

Then,

The number of people out of 100 who had attended the previous year is;

\rm (Number \ of \ people \ at \ festival)/(Number \ of \ people \ attend \ festival)= ( People\ out \of\ 100 \ had\ attended \ festival)/(x)\n\n(600)/(420)}=(100)/(x)\n\nx * 600 = 420 * 100\n\n600x = 42000\n\nx = (42000)/(600)\n\nx = 70

Hence, there are 70 people out of 100 had attended the previous year.

To know more about Ratio click the link given below.

brainly.com/question/10270436
100 * 420 / 600 = 70

answer: 70 people out of 100 had attended the previous year

Keiko is mixing 4 cups of concrete to make a stepping stone. She needs 1.5 cups of sand and 2.5 cups of cement mix. Which statement best describes how much of each ingredient Keiko needs to measure? A. Keiko should make it easy and just measure about 1 cup of sand and 3 cups of cement mix since she needs a total of 4 cups. B. Keiko should measure exactly 1.5 cups of sand and 2.5 cups of cement mix to be sure the concrete will set properly. C. Keiko should make it easy and just measure about 2 cups of each since she needs a total of 4 cups.

Answers

the answer is C and your welcome

Which of the following represents "10 less than n"? 10 - n n - 10 -10n

Answers

The statement can be written in the mathematical form will be 10 - n. Then the correct option is A.

What is Algebra?

The analysis of mathematical representations is algebra, and the handling of those symbols is logic.

It simply implies subtracting something from an entity, group, location, etc. Subtracting from a collection or a list of ways is known as subtraction.

The statement is given as "10 less than n".

The statement can be written in mathematical form and will be

⇒ 10 - n

The statement can be written in the mathematical form will be 10 - n.

Then the correct option is A.

More about the Algebra link is given below.

brainly.com/question/953809

#SPJ5
10 less then 'n' is a way of saying take ten away from 'n'.

it represents subtraction

basically n - 10

Draw a set of objects where you can find a fractional part of the group using the total number of objects by using subgroups

Answers

Answer:

Draw 20 equilateral triangles such that 5 triangles having sides measure 4 cm , 7 triangles have sides measure 7 cm , 3 triangles have side 10 cm and rest of the triangles have side of measure 5 cm.

This will become a set of equilateral triangles .

Let consider a subgroup set of the original set of having equilateral triangle with side-length of 5 cm.

Then the number of triangle having side-length 5 cm= 20-5-7-3=5

Now, the fraction of the group having triangle with side- length 5 cm is given  by:-

\frac{\text{triangle having side-length 5 cm}}{\text{total triangle}}=(5)/(20)=(1)/(4)
We divide the total set into several sub-sets (subgroups) that contain the exact same number of members. This way we know the number of total members by adding the number of total subsets.
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