6) What is
the
solution
to a
system
with
equations
8x+2y=20
and
-4x+y=2 ?

Answers

Answer 1
8x+2y=20
-8x. -8x
2y = 20 -8x
——————-
2
y = 10-4x

Plug in y value
-4x + 10 - 4x =2
-8x + 10 = 2
-8x = -8
X = 1

Plug x value into y= equation

Y = 10 - 4(1)
Y= 6

Related Questions

Find the slope of a line that includes the points (10, 8) and (-5, 8).

Answers

Answer:

0

Step-by-step explanation:

First, you have to plug it into the formula to find the slope.

[tex]\frac{rise}{run}[/tex] =[tex]\frac{y2-y1}{x2-x1}[/tex]

[tex]\frac{8-8}{-5-10} =\frac{0}{-15}[/tex]

Since 0 divided by anything is 0, that gives us 0 as a slope and it would be horizontal.

PLEASE HELP 100 POINTS!!!
ILL GIVE BRAINLIEST

Answers

[tex] \sf \: ( \frac{3 {c}^{2} {d}^{4} }{ {2c}^{3} {d}^{3} } ) ^{3} [/tex]

Simplify the expression by cancelling the like terms

[tex] \sf \: ( \frac{3d}{2c} )^{3} [/tex]

To raise a fraction to a power, raise the numerator and denominator to that power

[tex] \boxed{ \tt \: \frac{27 {d}^{3} }{ {8c}^{3} } }[/tex]

Therefore, Option B is the correct choice!!~

5,11,17 Find the 35th term.

Answers

Answer:

209 is the 35th term

Step-by-step explanation:

5, 11, 17, 23, 29, 35, 41, 47, 53, 59, 65, 71, 77, 83, 89, 95, 101, 107, 113, 119, 125, 131, 137, 143, 149, 155, 161, 167, 173, 179, 185, 191, 197, 203, 209.

What's the formula of (a-b)2

Answers

Answer:

(a-b) 2 = a square +b Square -2ab

Answer:

2a - 2b

Step-by-step explanation:

I just know the answer so yeah

Can someone plss help me with this!!!

Answers

For the graph the domain is (-5.4) and the range is (-3,3)

Answer:

Domain- [-5,4]

Range- [3, -3]

Step-by-step explanation:

Domain is the stopping point of the x values.

Range is the stopping point of the y values.

For the data set, 1, 2, 3, 4, 5, find the variance, and the standard deviation.

Answers

Answer:

The answer is 6.

Step-by-step explanation:

Note that the formula of variance for calculation purpose is

1

n

n

i

=

1

x

2

i

(

1

n

n

i

=

1

x

i

)

2

where

n

is the total number of values in the given data set.

In your given data we have

n

=

5

and the values of

x

i

's are

{

1

,

2

,

3

,

4

,

5

}

.

So, your variance

=

1

5

[

1

2

+

2

2

+

3

2

+

4

2

+

5

2

]

(

1

5

[

1

+

2

+

3

+

4

+

5

]

)

2

=

11

9

=

6

Look at the photo please

Answers

Answer:

z'(8, 12)

Step-by-step explanation:

Multiply each coordinate by the scale factor of the dilation.

z(2, 3) -----> z'(8, 12)

Haley measured the distances between her house and two of her friends’ houses. Ellen’s house is 1. 41 miles away from Haley’s, and Dirk’s house is 6,547 feet away from Haley’s. Whose house is farther away from Haley’s, and how many feet farther away is it, to the nearest whole foot? a. Ellen’s house is 898 feet farther away than Dirk’s. B. Ellen’s house is 1,659 feet farther away than Dirk’s. C. Dirk’s house is 503 feet farther away than Ellen’s. D. Dirk’s house is 1,267 feet farther away than Ellen’s.

Answers

There is relationship between miles and feet. 1 mile has 5280 feet.

Option A: Ellen's house is 898 feet farther away than Dirk’s. is correct.

How are miles and feet related?

Miles and feet both measures distance. The relationship between the two is given by the expression:

1 mile = 5280 feet.

How to convert the distance from Dirk's house to Haley's house?


You can use the above given relation to find how many miles are there houses apart.

[tex]1 \: \rm mile = 5280 \: \rm feet.\\\\ 1 \: feet = \dfrac{1}{5280} \: miles\\\\ 6547\: feet = \dfrac{6547}{5280} \: miles \approx 1.24 \: miles[/tex]

Difference between both the distance is 1.41 - 1.24 = 0.17 miles

Converting this to feet:

[tex]1\rm \: mile = 5280 \: feet\\ 0.17 \: mile = 5280 \times 0.17 \approx 898 \: feet[/tex]

Thus, Option A: Ellen's house is 898 feet farther away than Dirk’s. is correct.

Learn more about feet and miles here:

https://brainly.com/question/23415283

1) John is going golfing and needs to rent equipment. It costs him $75 to rent the clubs and he needs to purchase golf balls for $1.50 per ball. If he has $100 in his pocket, how many golf balls can he purchase?

Answers

Answer:

Step-by-step explanation:

So he has $100 and you want to see how many golf balls he can purchase well we know he spends $75 on the clubs so

 75

-100

--------

  25

John now has 25 dollars left. One ball is $1.50 so we keep adding or multiplying till we finish 25 dollars

1.50 + 1.50 + 1.50 + 1.50 + 1.50 + 1.50 + 1.50 + 1.50 + 1.50 + 1.50 + 1.50 + 1.50 + 1.50 + 1.50 + 1.50 + 1.50 = 24

or

  1.50

x    16

----------

    24

he can purchase 16 golf balls

and the reason why it's 16 is that 16 golf balls are equal to 24 dollars and he can't purchase 17 golf balls or else that would be $25.50 which is more money than he has.

Hope that helped!

what is w if w over 6 equals 3 over 8

Answers

Answer:

w = -12

Step-by-step explanation:

To solve this, we need to isolate the variable.

w/6 + 5/8 = -1 3/8=> w/6 + 5/8 = -11/8=> w/6 = -11/8 - 5/8=> w/6 = -16/8=> w/6 = -2=> w = -12

Hence, the value of the variable is -12.

Pls somone help plssssss

Answers

Answer:

D

Step-by-step explanation:

Answer:

4w=80

Step-by-step explanation:

4 loaves of bread weigh w ounces

so 4 times w will equal the total weight of 80

help me with this plz no links

Answers

Height of Mt Might is 20738.5ftTallest mountain is higher than 8606.37ft

Elevation of tallest mountain

[tex]\\ \sf\longmapsto 20738.5+8606.37[/tex]

[tex]\\ \sf\longmapsto 29344.87ft[/tex]

Joel mows his aunt's lawn for $9 per hour. If he spends $7 on gas, how many hours, x, will he need to spend mowing the lawn to have $47 left?

Answers

Answer:

6 hours

Step-by-step explanation:

$47 + $7 = $54

$54 / 9 = 6h

Joel will need six hours to spend mowing the lawn to have $47 left.

We have been given that Joel mows his aunt's lawn for $9 per hour. If he spends $7 on gas.

What is algebra?

Algebra is the analysis of mathematical representations, while logic is the manipulation of those symbols.

Let the number of hours would be x will he need to spend mowing the lawn to have $47 left.

According to the given condition, the algebraic form of the phrase would be as:

⇒ 9 × x - 7 = 47

Rearrange the terms of variables in the above equation,

⇒ 9x = 47 + 7

Apply the addition operation, and we get

⇒ 9x = 54

⇒ x = 54 / 9

Apply the division operation to get

⇒ x = 6

Therefore, he will need six hours to spend mowing the lawn to have $47 left.

To learn more about the Algebra link is given below.

brainly.com/question/953809

#SPJ5

David bought a car for 65% of the original price $8500. what did he pay for the car?

Answers

analyze problem

65% converted is 0.65

plug in equation

8500*0.65=

$5525

Solve for x using common denominators.

4 over the quantity 7 times the binomial x plus 6 equals x over the quantity x plus 6

7 over 4
−7 over 4
4 over 7
−4 over 7

Answers

I think the answer is 4 over 7

The solution is Option C.

The value of the equation 4 over the quantity 7 times the binomial x plus 6 equals x over the quantity x plus 6 is given by A = 4 over 7

The value of A = 4/7

What is an Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the equation be represented as A

Now , the value of A is given by the equation

4 over the quantity 7 times the binomial x

The value is 4 / 7 ( x + 6 )

And ,

x over the quantity x plus 6

The value is x / ( x + 6 )

So , substituting the values in the equation , we get

4 / 7 ( x + 6 ) = x / ( x + 6 )   be equation (1)

On simplifying the equation , we get

The denominators of both the sides of the equation is same or common

And ,

Multiplying by ( x + 6 ) on both sides of the equation , we get

4/7 = x

Therefore , the value of x is 4/7

Hence , The value of the equation 4 over the quantity 7 times the binomial x plus 6 equals x over the quantity x plus 6 is given by A = 4 over 7

The value of A = 4/7

To learn more about equations click :

https://brainly.com/question/19297665

#SPJ2

(1/243)^-x/3=(1/9)^-x-2+1

Answers

If your solving for x then the answer is -6

Is negative 7/2 a whole number

Answers

Answer:

no it is not

a whole number is a number with that is a multiple of 1

ex 1,6,4

but not 2/3,-5.5,-225

if we simplfy -7/2 we get -3.5

Hope This Helps!!!

Apollo father offers three commercial spaces for rent each space cost on average between $245 and $300 a month for a duration of 2 to 4 months James estimates the total rent for the three spaces to be approximately $2205 is this a reasonable estimate

Answers

Answer:

Step-by-step explanation:

No because 300 times 4 is 1,200

What did they do wrong?
give details please....

Answers

Answer:

The mistake is the -3 exponent was not applied correctly to the coefficients (the 2 and the 4 in the original question) see image.

Step-by-step explanation:

The exponent rules being used here are applying an exponent to ALL the factors in the numerator (top part) and the denominator (bottom part). It is easier to simplify first. Then the -3 exponent goes on all the factors (the x, the y, and the 2) "Fix" negative exponents by pushing those terms across the fraction bar. Finally, 2^3 is 8. Nothing else can be simplified. See image.

[tex]\left( \cfrac{2x^2}{4y^3} \right)^{-3}\implies \left( \cfrac{4y^3}{2x^2} \right)^{3}\implies \left( \cfrac{2y^3}{x^2} \right)^{3}\implies \cfrac{2^{1\cdot 3}y^{3\cdot 3}}{x^{2\cdot 3}}\implies \cfrac{2^3y^9}{x^6}\implies \cfrac{8y^9}{x^6}~\textit{\large\checkmark} \\\\[-0.35em] ~\dotfill\\\\ \left( \cfrac{2x^2}{4y^3} \right)^{-3}\implies \underset{\bigotimes}{\left( \cfrac{2y^3}{4x^2} \right)^{3}}\implies \left( \cfrac{y^3}{2x^2} \right)^{3}\implies \underset{\bigotimes}{\cfrac{y^9}{2x^6}}[/tex]

not carrying the constant with the term.

no distributing the exponent to the constant.

The formula for the lateral surface area of a cylinder is S=2πrh , where r is the radius of the bases and h is the height.

Solve for h.


h=r2Sπ

h=2Sπr

h=S2πr

h=Sr2π

Answers

Answer:

Step-by-step explanation:

Solution given:

Surface area of a cylinder

S=2πrh

Now solving for h

Dividing both side by 2πr

[tex]\frac{S}{2πr}=\frac{2πrh}{2πr}[/tex]

We get

h=[tex]\frac{S}{2πr}[/tex]

Where is plant cell from

Answers

Answer:

Different types of plant cells and tissues.

Step-by-step explanation:

Plant cells come from different cells to form the major classes of cells and tissues of roots, stems, leaves, flowers, and reproductive structures, each of which may be composed of several cell types.

3/4 of a cake is left and is divided equally among four people. How much of the remaining cake does each person get?

Please include a explanation!

Answers

Answer:

each person can get 3/12 if you split the 3.4 twice.

Step-by-step explanation:

make a circle

split one line down the middle and the other horizontal.

color is one of the corners. you will not use it. this is the part of the cake they already ate.

now you have three remaining parts.

split each one of the remaining heart down the middle.

now you have six remaining slices.

6 is not divisible by 4.

split the sixths down the middle one more time.

now you should have 12.

12 is divisable by 4.

give each person 3 out of 12 slices of cake.

it is just enough to feed all 4 people.

HELP ME PLS ILL GIVE BRAINLY

Answers

Answer:

BE is congruent to FD because the hypotenuse of both triangles is the same.

Write the equation 7x + 8y =4 in the form y = mx + b. (2 points)

a
\large y=-\frac{7}{8}x+\frac{1}{2}

b
\large y=-\frac{8}{7}x+\frac{4}{7}

c
\large y=-\frac{7}{8}x+2

d
\large y=-7x+4

Answers

Answer:

it's your first answer of

y= (-7/8)x + 1/2

Seventy concert tickets were sold for 550. each adult ticket cost 9 and each children's ticket cost 5. find the number of adult tickets and the number of childrens tickets sold.

(solve using linear equations)

Answers

Answer:

a = 50

c = 20

Step-by-step explanation:

Let a = adult tickets

Let c = child tickets
Equations:

9a + 5c = 550 ————> (1)

a + c = 70 ————> (2)

Solve for a using second equation

a = 70 - c

Plug in for a using first equation

9(70 - c) + 5c = 550

Solve for c

c = 20

Plug in for c using second equation

a + 20 = 70

a = 50


I hope this helped and please mark me as brainliest!

9x + 5y = 550
X + y = 70

X=50 and Y=20

Use algebra tiles to solve 2x= -14

Answers

Answer:

The answer is -7.

Step-by-step explanation:

We can find the answer by dividing 2 on both sides of the equation (to isolate the variable, x).

2x/2 = -14/2x = -7

Solve the inequality.

(look at the picture)

Answers

c is the correct answer hope that helps

Please find me the slope

Answers

Answer: y= 2/3x +3

Step-by-step explanation:

y= Mx+b

M: slope

b: on y axis

Answer:

is bellow

Step-by-step explanation:

slope: 2/3

y-intercept: 3

Equation: y=2/3x+3

Hope this helps

what is the slope of the linear function y=5/4 x - 9

Answers

5/4
y=mx+c and m is the slope

If 2A:3B=5:6 and 3B:2C=36:15, then find A:C​

Answers

Answer:

A : C = 2 : 1

Step-by-step explanation:

Expressing the ratios in fractional form

[tex]\frac{2A}{3B}[/tex] = [tex]\frac{5}{6}[/tex] ( cross- multiply )

15B = 12A ( divide both sides by 15 )

B = [tex]\frac{12}{15}[/tex] A = [tex]\frac{4}{5}[/tex] A

and

[tex]\frac{3B}{2C}[/tex] = [tex]\frac{36}{15}[/tex] ( cross- multiply )

45B = 72C ( substitute B = [tex]\frac{4}{5}[/tex] A )

45 × [tex]\frac{4}{5}[/tex] A = 72C

36A = 72C ( divide both sides by C )

36 × [tex]\frac{A}{C}[/tex] = 72 ( divide both sides by 36 )

[tex]\frac{A}{C}[/tex] = [tex]\frac{72}{36}[/tex] = [tex]\frac{2}{1}[/tex]

Then

A : C = 2 : 1

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