Solve each system by elimination.
1) 6x - y=-14
-2x + y = 6

Answers

Answer 1

Answer:

(-2, 2)

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Equality Properties

Algebra I

Solving systems of equations using substitution/elimination

Step-by-step explanation:

Step 1: Define Systems

6x - y = -14

-2x + y = 6

Step 2: Solve for x

Elimination

Combine 2 equations:                    4x = -8Divide 4 on both sides:                   x = -2

Step 3: Solve for y

Define equation:                    -2x + y = 6Substitute in x:                       -2(-2) + y = 6Multiply:                                  4 + y = 6Isolate y:                                 y = 2

Related Questions

Multiple Choice
1. Which of the following is the correct form of the distance formula? (1 point)
d=(33 – x;) +(12 – Y;)
mm 2 m ( 20 COO
a = √(x - 2)² + (x2 - y2)
= V(x2 – xz)-(-y)
a = √(x2-x;)²-(32-33)
d =
2. Use the distance formula to find the distance between the points (-3.8) and (-4. -
the nearest hundredth, if necessary.

Answers

Answer:

1. The formula used to the find distance formula is: [tex]Distance\:Formula=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]

2. The distance between the points (-3,8) and (-4, -2) is 10.04

Step-by-step explanation:

1. Which of the following is the correct form of the distance formula?

The formula used to the find distance formula is: [tex]Distance\:Formula=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]

2. Use the distance formula to find the distance between the points (-3.8) and (-4. -?)

Note: Since the y-term in (-4,-) is missing So, I am using -2 to solve the question and find distance. You can use the term given in question and replace it with -2 and use this solution as reference to solve and find the correct answer.

We have points (-3,8) and (-4,-2)

Putting values in distance formula and finding result:

[tex]Distance\:Formula=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]

We have x_1=-3, y_1=8, x_2=-4, y_2=-2

[tex]Distance=\sqrt{(-2-(-3))^2+(-2-8)^2}\\Distance=\sqrt{(-2+3)^2+(-2-8)^2}\\Distance=\sqrt{(1)^2+(-10)^2}\\Distance=\sqrt{1+100}\\Distance=\sqrt{101}\\Distance=10.04[/tex]

So, the distance between the points (-3,8) and (-4, -2) is 10.04

Here is a list of numbers:
14, 52, 100, 21, 83, 75, 13,39,86,52
Calculate the range.

Answers

Answer:

87

Step-by-step explanation:

Range= biggest value-smallest value

R=100-13

R=87

Answer:

87

Step-by-step explanation:

Hope this helped have an amazing day!

What is the solution to this equation?

X/5 = 25

A. x = 20
B. x= 125
C. x = 5
D. x= 30

Answers

Answer:

A. x=20

Step-by-step explanation:

The seventh grade band has 15 drummers and 12 trumpet players. The eighth grade band band has 10 drummers and 8 trumpet players. Do the ratios form a proportion

Answers

Yes 7 has fifty percent more

Please help!!
Each pair of polygons is similar. Find the value of x.

Answers

Answer in fraction form: x = 55/4

Answer in decimal form: x = 13.75

Both forms are equivalent, but they say it in a slightly different way.

===========================================================

Work Shown:

AC/QY = CD/YW

(x+5)/15 = 5/4

4(x+5) = 15*5

4x+20 = 75

4x = 75-20

4x = 55

x = 55/4

x = 13.75

------------

Explanations:

The first step is possible because the polygons are similar. Similar figures have their corresponding sides be in the same proportion or ratio. Note how side AC has the double red angle (at point A) and a single red angle (point C). The side QY has the same idea in the same order. This is why AC corresponds to QY. The ratio AC/QY is the same as CD/YW.In the second step, I plugged in the expressions that the diagram shows. This is the substitution property.On step 3, I cross multiplied. The general format is A/B = C/D cross multiplies to A*D = B*C.
I don’t think you can get a hold of

Factorise
6x - 9

Factorise fully
6a + 10ab
Please answer as soon as possible :)

Answers

Answer:

6x - 9

3(2x−3)

2a(5b+3)

Step-by-step explanation:

Factor 6a+10ab

10ab+6a

Factor 6x−9

6x−9

=3(2x−3)

                             :))

Answer:

I think the answer is this3(2x-3)

Solve for f: ax+3b=2f ​

Answers

Final Answer: [tex]f = \frac{ax}{2} + \frac{3b}{2}[/tex]

Steps/Reasons/Explanation:

We will be trying to rewrite the equation. To do this we will move [tex]2f[/tex] to the left. Then, we will move [tex]ax + 3b[/tex] to the right.

Question: Solve for [tex]f[/tex]: [tex]ax + 3b = 2f[/tex].

Step 1: Rewrite the equation.

[tex]2f = ax + 3b[/tex]

Step 2: Divide each term by [tex]2[/tex] and simplify.

[tex]\frac{2f}{2} = \frac{ax}{2} + \frac{3b}{2}[/tex]

Step 3: Cancel out the common factor of [tex]2[/tex].

[tex]\frac{Cancel 2 f}{Cancel 2} = \frac{ax}{2} + \frac{3b}{2}[/tex]

Step 4: Divide [tex]f[/tex] by [tex]1[/tex].

[tex]f = \frac{ax}{2} + \frac{3b}{2}[/tex]

~I hope I helped you :)~

Perform the operation. Enter your answer in scientific notation.


7 × 106 − 5.4 × 106 =

Answers

Answer:

849

Step-by-step explanation:

1556

Answer:

1.696  × [tex]10^{2}[/tex]

Step-by-step explanation:

Move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be the exponent on the  10

.

If the decimal is being moved to the right, the exponent will be negative. If the decimal is being moved to the left, the exponent will be positive.

There are 131 students at a small school and 35 of them are freshmen. What fraction of the students are freshmen?

Answers

Answer:

35/131

Step-by-step explanation:

Since 35 out of 131 students are freshmen, the fraction would be:

35/131

I hope this helps! :)

The fraction of the students are freshmen will be 35 / 131.

What is a fraction number?

A fraction number is a number that represents the part of the whole, where the whole can be any number. It is in the form of numerator and denominator.

There are 131 students at a small school, and 35 of them are freshmen.

Then the fraction of the students are freshmen will be

⇒ 35 / 131

More about the fraction number link is given below.

https://brainly.com/question/78672

#SPJ2

Lin and Elena have discovered they have so much in common. They each have a fish tank holding 20 units of water. Whose tank holds 20 gallons, and whose holds 20 cups?

Answers

Answer: a. Lin's tank hold 20 cups and Elena's tank hold 20 gallons; I know this because gallons are greater than cups.

Step-by-step explanation:

Gallons are greater than cups so the fish tank that will hold 20 gallons would have to be the bigger one which in this case is Elena's.

With cups being lesser in quantity than gallons, the fish tank that will hold 20 cups of water will definitely have to be the smaller one which in the case is Lina's.

#5) What is the slope of the line that passes through the points (6, -8) and (4,10)?
A)1/3
B)-1/9
C) - 9
D) -1

Answers

C) -9

Hope it helped :)

PLEASE I NEED HELP ON THIS

Answers

Answer:

do 3.14 x 6

Step-by-step explanation:

Answer:

37.69911

Step-by-step explanation:

"the internet does not lie"-- home

I need help on this question.

Answers

Answer:

1410

Step-by-step explanation:

they said they would spend 3000 more than last year. it said this years budget is 4410.

plss help
7. (a) how many 3-digit positive numbers are there?
(b) how many 4-digit positive numbers are there?

Answers

Answer:

a) 900

b) 9,000

Step-by-step explanation:

Answer:

Step-by-step explanation:

A. a=100. an=999

an=a+n-1.d

Therefore answer will be 900.

B. 9000.

If z = 4 solve for 5z

Answers

Answer:

20

Step-by-step explanation:

Because 5(4) is the same thing s 5*4, so it is 20.

Hope it helps!

Answer:

20

Step-by-step explanation:

Z=4

If a letter is next to a number it means to multiple

So since z=4, replace 5z with 5(4) and you get 20

y = -x +2
7x + 4y = -1
What is the value of y for the solution to this system of equations?

Answers

Answer:

Hi! The correct answer is y = 5

Step-by-step explanation:

~Solve for the first variable in one of the equations, then substitute the result into the other equation~

Which set of ordered pairs represents a function?

( Please help me with this as soon as possible )

Answers

Answer:

B

Step-by-step explanation:

i did the same test

HELP PLEASE I WILL MARK BRAINLIEST IF RIGHT ANSWER!!

Answers

Answer:

Its XYW is half of LXYZ

Step-by-step explanation:

.

Answer:

this is the required solution

What is the equation of the line that contains the points
(-5,0) and (0,6) ?

Answers

Answer:

y=6/5+6

Step-by-step explanation:

Which is fraction is less 1/5 4/5?

Answers

Answer:

1/5

Step-by-step explanation:

Look at it this way; 1/5th of a pizza. Five parts of a pizza, you only have one. But 4/5? You have four slices of the pizza! Much more! Yum.

Answer:

1/5<4/5

Step-by-step explanation:

Solve 3x-9 ≥ 27-6x
Please help would be greatly appreciated!!

Answers

X is greater than or equal to four

2/3x+1=1/6x-7
What the answer solve for 15 points !!

Answers

Answer:

The value of x is -16.

Step-by-step explanation:

☆Let's solve!

[tex] \: \: \: \: \: \: \: \: \: \: \frac{2}{3} x + 1 = \frac{1}{6} x - 7 \\ \frac{ - \frac{1}{6}x \: \: \: \: \: \: \: \: \: = - \frac{1}6{x} }{ \frac{1}{2}x + 1 = - 7} \\ \: \: \: \: \: \frac{ - 1 = - 1}{ \frac{ \frac{1}{2} x}{ \frac{1}{2} } = \frac{ - 8}{ \frac{1}{2} } } \\ x = - 16[/tex]

Move each number to the correct place on the number line. Then, move the correct symbol to the comparison.

Answer choices:
-1.5
-3/4
>
<
=

Answers

Answer:

<

Step-by-step explanation:

-1/5 < -3/4


...............

4. Chrissy had 4 gallons of gas in her tank when she arrived at the
gas station. She pumped gas into her car at a rate of 0.3 gallon per
second. How many gallons of gas were in the tank after s seconds?

Answers

it would be 15 I think : )

Mike paid $32 for a sult Jacket that had been marked down 40% from its original price, What was the original price.

Answers

Answer:

The answer is $44.80

Step-by-step explanation: First, you need to find the how much 40% of $32 is:

32 x .40 = 12.80

Then, you add 12.80 to $32.

$32 + $12.80 = $44.80

Answer: 44.8$

Step-by-step explanation:

What you have to do is find 40% of 32. (it is 12.8) add 12.8 to 32. You get 44.8

Coffee costs $1.75 a pound. How much would 3.2 pounds of coffee cost?

Answers

5.6 all you need to do is multiply them

Answer:

$5.60

Step-by-step explanation:

So each pound equals to $1.75 which means that we need to multiply by 3.2 because we're trying to find the number of money we'll spend on a certain amount of coffee. So if we multiply, we get 5.6. Though in context with the problem, it should be $5.60.

when f(n) =12, what is rhe value of n​

Answers

Answer:

When f(n) = 12, what is the value of n? Answer: n=5

Step-by-step explanation:

Lynn has a box of crayons.
4/9 of the crayons are blue
65% of the remaining crayons are red.
The other 14 crayons are yellow.
How many crayons are in the box altogether?​

Answers

Answer:

There are 72 crayons in the box

Step-by-step explanation:

Fractions

To solve this problem we'll manage numbers as fractions to keep the precision up to the end of it.

Lynn has a box of crayons. It's given 4/9 of the crayons are blue. The remaining crayons are:

[tex]1-\frac{4}{9}=\frac{5}{9}[/tex]

From that portion, 65% are red, or equivalently, 35% are yellow.

We write 35% as a fraction:

[tex]\displaystyle 35\%=\frac{35}{100}=\frac{7}{20}[/tex]

Thus, the portion of yellow crayons is:

[tex]\displaystyle \frac{7}{20}\cdot \frac{5}{9}=\frac{7}{36}[/tex]

This fraction of x crayons is equal to 14, thus:

[tex]\displaystyle x=\frac{14}{\frac{7}{36}}=14\cdot\frac{36}{7}[/tex]

x = 72

There are 72 crayons in the box

Mrs. Carter needs 1/2 meter of cloth to make a pillowcase. How many pillowcases can she make with 5 meters of cloth?​

Answers

She can make 10 pillow cases. 1/2 = p. So 5 / (1/2) = gives you the answer. Thus 10. Also can check by setting 5=10p. Then solving for p. P will equal 1/2.

the formula for the sum of the degree measures of the interior angles of a polygon is S=180(n-2) Solve for ,n, the number of sides of the polygon, in terms of S

NEED STEP BY STEP EXPLANATION

Answers

Answer:

n = (S + 360)/180

Step-by-step explanation:

Given formula:

S = 180(n - 2)

Solving for n:

S = 180(n - 2)              ⇒ open parenthesisS = 180n - 360           ⇒ isolate n180n = S + 360          ⇒ divide both sides by 180n = (S + 360)/180

[tex]S = 180(n - 2) \\ S = 180n - 360 \\ 180n =( S + 360) \\ n = \frac{(S+ 360)}{180} [/tex]

where, n =number of sides of polygon

S =sum of the degree measures of the interior angles of the polygon

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