Mathematics High School

solve for x please i need help

Answers

Answer 1

Answer:

x = 4

Step-by-step explanation:

By exterior angle theorem:

(9x + 1)° + (11x - 2)° = (19x + 3)°

(9x + 1 + 11x - 2)° = (19x + 3)°

(20x - 1)° = (19x + 3)°

20x - 1 = 19x + 3

20x - 19x = 3 +1

x = 4

Related Questions

Which answer choice do I pick?

Answers

Answer:

D. f(x) = 8x

Step-by-step explanation:

At each increasing x point, the y point increases by 8, this means that for each x increasing by 1, y increases by 8, which means y = 8x

Answer:

Fourth choice, f(x) = 8x

Step-by-step explanation:

y is going up or down and x is left or right, u riht the slope like y/x

so it's going up 8 units every 1 unit it goes to the right so it's 8/1 which is 8 so 8 is ur slope

Evaluate the expression below if x = 3 and y= -4.
X - Y - 3+ (-57)

Answers

Answer:

-53

Step-by-step explanation:

If x=3 and y=-4

Plug the numbers into the equation

3 - (-4) - 3 + (-57)

Now solve the equation right to left

3 - (-4) = 7

7 - 3 = 4

4 - 57 = -53

So the answer is -53

The answer to this equation is - 61

Tyler's mom purchased a savings bond for Tyler. One year after it was purchased, the value of the savings bond was $156. If the value of the savings bond increases by 4% after one year, what was the value of the bond when Tyler's mom purchased it?]

Answers

Answer:

$149.76

Step-by-step explanation:

A 220-inch pipe is cut into two pieces. One piece is four times the length of the other. Find the length of the shorter piece.
The shorter piece is
inches long

Answers

Answer:

let x be the length of the shorter piece.

4x + x= 210

x= 42.

4x= 168

The shorter piece is 42in and the long piece is 168 in.

The length of the shorter piece will be;

⇒ x = 44 inch

What is linear expression?

A linear expression is an algebraic statement where each term is either a constant or a variable raised to the first power.

Given that;

A 220-inch pipe is cut into two pieces.

And, One piece is four times the length of the other.

Now,

Since, One piece is four times the length of the other.

Let height of shorter piece = x

Then, The height of longer piece = 4x

Hence, We can formulate;

⇒ x + 4x = 220

Solve for x as;

⇒ 5x = 220

⇒ x = 220 / 5

⇒ x = 44

Thus, The length of the shorter piece will be;

⇒ x = 44 inch

Learn more about the linear expression visit:

https://brainly.com/question/14053278

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The graph represents f(x) = x +3

On a coordinate plane, a step graph has horizontal segments that are each 1 unit long. The left end of each segment is an open circle. The right end of each segment is a closed circle. The left-most segment goes from (negative 5, negative 1) to (negative 4, negative 1). Each segment is 1 unit higher and 1 unit farther to the right than the previous segment. The right-most segment goes from (1, 5) to (2, 5).

What is f(−2.2)?

-2
0
1
2

Answers

Answer:

c. 1

Step-by-step explanation:

edge 2020 :) have a nice day

The required value of f(-2.2) is 1 for the given function f(x)=x+3. The correct answer is an option (C).

The given function is f(x)=x+3.

To find f(-2.2) on the given graph of f(x) = x + 3, we need to locate the corresponding point on the step graph.

From the information provided, we know that the left-most segment starts at (-5, -1) and ends at (-4, -1), and each segment is 1 unit higher and 1 unit farther to the right than the previous segment.

To determine the value of f (-2.2), we need to find the segment that includes the x-coordinate of -2.2.

Since the x-coordinate -2.2 falls between -4 and -3 (1 unit to the right of the left-most segment), the corresponding y-coordinate is 2 units higher than the starting y-coordinate of -1.

So, f(-2.2) = −1 + 2

f(-2.2) = 1.

Thus, the required value of f(-2.2) is 1.

Learn more about the functions here:

brainly.com/question/12431044

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If 3 sodas cost $6 then what is the cost per soda??

Answers

The cost is 2 dollars per soda

Answer:

$2 per soda

Step-by-step explanation:

6/3= 2

i need help. thank you

Answers

Answer:

x = 2

Step-by-step explanation:

x/6 + 1 = 2x - 8/3 (first you want to multiply by 6 on both sides to get rid of x/6)

x + 6 = 12x - 16 (add 16 on both sides)

x + 22 = 12x (subtract x on both sides)

22 = 11x (divide by 11 on both sides)

2 = x

Answer:

$9.98

Step-by-step explanation:

The first step is to calculate the total fabric that Calista has

= 2 1/2 + 1 3/4

= 5/2 + 7/4

= 17/4

The next step is to calculate the fabric that she needs

= 17/4-3

= 5/4

If each yard of fabric costs $7.98 then the amount needed can be calculated as follows

= 7.98 × 5/4

= 7.98 × 1.25

= 9.975

= $9.98

Hence Kalista needs $9.98

Collin is collecting rocks for a science project. So far, he has collected 36 rocks, which is 90% of the total he needs. How many total rocks does Collin need for his science project?

Answers

Answer:

40 total rocks

Step-by-step explanation:

100 * 36 / 90 = 40

Answer:

he needs 4 more

Step-by-step explanation:

Ten more than half a number is 9

Answers

I guess the number is being taken of by 1

Matthew has 219 pens to put into packages. Each package must hold 8 pens.
How many packages of pens can Matthew make? How many pens will be left over?
Enter your answers in the boxes.

Answer:

formulla of perimeter of rectangle

Step-by-step explanation:

perimeter of rectangle=2(l+b)

= 2(7.5+3.25)

=2(11.25)= 22.5

Step-by-step explanation:

l = 7.5cm

b = 3.75cm

perimeter of rectangle = 2(l+b)

= 2(7.5+3.75)

= 2(11.25)

=22.5cm

I NEED HELP, BRAILIST WILL BE AWARDED FOR BIGGEST BRAIN

Answers

Answer:

C. Any number in Set T is a rational number and not an irrational number

Answer:

c jjbnnbnnnbbjnnbbjj

HELP, I NEED HALP ASAP
180=x+(3x-8)

Answers

Answer:

x=47

Step-by-step explanation:

Let's solve your equation step-by-step.

180=x+3x−8

Step 1: Simplify both sides of the equation.

180=x+3x−8

180=x+3x+−8

180=(x+3x)+(−8)(Combine Like Terms)

180=4x+−8

180=4x−8

Step 2: Flip the equation.

4x−8=180

Step 3: Add 8 to both sides.

4x−8+8=180+8

4x=188

Step 4: Divide both sides by 4.

4x4=1884

x=47

Which of the following list of sides would make a right triangle?

Answers

Answer:

(3,4,5) is the answer

Step-by-step explanation:

What’s the meaning of life

A system of equations and its solution are given below. System A Complete the sentences to explain what steps were followed to obtain the system of equations below. System B To get system B, the equation in system A was replaced by the sum of that equation and times the equation. The solution to system B the same as the solution to system A.

Answers

Answer:

To get to system B the second equation in system A was replaced by the sum of that equation and the first equation multiplied by 4. The solution to system B is the same as the solution to system A.

Step-by-step explanation:

A system of equations and it’s solution are given below.

System A.

x-y=3

-2x+4y=-2

Solution: (5,2)

Complete the sentences to explain what steps were followed to option the system of equations below.

System B

x-y=3

2x=10

To get to system B the (first/second) equation in system A was replaced by the sum of that equation and the (first/second) equation multiplied by (4....2.....-3) . The solution to system B (is/ is not) the same as the solution to system A.

Solution:

To get system B:

First write the first equation in system A. x - y = 3

Multiply the second equation in system A by 4 and add to the first equation in system A to get:

2x = 10

x = 10/2 = 5

Put x = 5 in x - y = 3

5 - y = 3

y = 5 - 3 =2

The solution to system B is the sam as that of system A

This question makes exactly no sense.

However, if yall want the answer to

Question:
System A
x-y= 7 -3x+9y = -39 Solutions (4,-3)

Complete the sentences to explain what steps were followed to obtain the system of equations below

x-y= 7 6y= -18

Solution:

To get system B, the second equation in system A was replaced by the sum of that equation and 3 times the first equation. The solution to system B is the same as the solution to system A.

PLEASE HELP .!!! ILL GIVE BRAINLIEST.. *EXRTA POINTS* .. DONT SKIP :(( !
ILL GIVE 30 POINTS .

Answers

Answer:

a200

Step-by-step explanation:

answer fast and correctly for brainliest

Answers

Answer:

60 years

Step-by-step explanation:

I’ll mark you brilliant!!!!!!!Iftheequationofalineis2x+y=6,whatistheslope?
2. Iftheequationofalineis4x-y=8,whatistheslope?
3. What is the slope of a line containing the points (2,9) and (3,12)?
4. What is the slope of a line containing the points (2,- 4) and (3, 10)?
5. The following table shows the number of pages Adriano read in x hours. Find the slope of the line that is the graph of the relation and write what does (2,100) represent.
Time(h) 1 2 3 4
Number
of pages 50 100 150 200
Slope:
(2,100) represents:

Answers

Answer:

answer below

Step-by-step explanation:

2. The slope is 4

3. The slope is 3.

4. the slope is 14.

I took the Test

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