−3x−9y=18
4x+3y=12
​what is x and y

Answers

Answer 1

Answer:

x = 6 and y = -4 or (6,-4)

Step-by-step explanation:


Related Questions

Which fractions have a least common denominator of 12? 1 A.2 and 3 2 B. 1 5 and 2 6 1 C. 5 and 9 5 1 D.2 and 3 4​

Answers


The answer is b. 15

7 is what percent of 36?
a. 19.4%
b.194%
a 5.14%
d. 514.3%

Answers

Answer:

19.4

Step-by-step explanation:

12 sheets of paper out of 28

Answers

28-12 is 16 if thats what you were looking for?

Mary uses a scale drawing of 100 feet : 10 inches. If she wants to build a mall that has a total space of 6000 feet how big would the scale be in inches? you have 4 answers pick the the right one you will get 100 points so is it.
A 600 inches
B 100 inches
C 10 inches
or D 6 inches

Answers

Answer:

it would be a

Step-by-step explanation:

because you would have to divide

Pls help I need this soon :) thank you

Answers

Answer:

A would be equivalent

Step-by-step explanation:

if you think about it answers c and d would not make sense because they use 14 and not nine, so if you comapare the two you should get answer A

-29 19/40 as a decimal

Answers

19 divided by 40 is .475 so it’s -29.475

A rental car agency charges $16 per day plus 14 cents per mile to rent a certain car. Another agency charges $23 per day plus 10 cents per mile to rent the same car. How many miles per day will have to be driven for the cost of a car from the first agency to equal the cost of a car from the second agency?
a) 175 miles per day
b) 1750 miles per day
c) 97.5 miles per day
d) 975 miles per day ​

Answers

Answer:

Step-by-step explanation:

The answer is 175 miles per day. I guessed on it and it was right :D

The number of miles per day that will have to be driven for the total cost of of a car from the first agency to equal the total cost of a car from the second agency is 175.

What is an equation?

An equation is formed when two equal expressions are equated together with the help of an equal sign '='.

A rental car agency charges $16 per day plus 14 cents per mile to rent a certain car. Therefore, we can write,

Total charge for x miles = $16 + $0.14(x)

Another agency charges $23 per day plus 10 cents per mile to rent the same car. Therefore, we can write,

Total charge for x miles = $23 + $0.10(x)

Since it is needed to be found the number of miles that the car should be traveling so that the total cost from both the agencies is the same. Thus, equate the equation together,

$16 + $0.14(x) = $23 + $0.10(x)

16 + 0.14x = 23 + 0.10x

0.14x - 0.10x = 23 - 16

0.04x = 7

x = 7 / 0.04

x = 175 miles per day

Hence, the number of miles per day that will have to be driven for the total cost of of a car from the first agency to equal the total cost of a car from the second agency is 175.

Learn more about Equation here:

https://brainly.com/question/14686792

#SPJ2

MHANIFA PLS HELP ME :), or it cud just be anyone :)rEALLY EZ PLS HELP!!! ASAP TY :)




show all work converto to radical form and simplify if possibblr 36-^3/2

Answers

Answer:

216

Step-by-step explanation:

36^(3/2) = (6^2)^(3/2) =6^(2*3/2) =6^3 = 216

Answer:

[36^3] squared

Step-by-step explanation:

formula a x/n= n [a^x] squared

a x/n= n [36^3]

[36^3] squared

Lainey runs a string of lights from the ground straight
up a door frame that is 2.5 meters tall. Then they run
the rest of the string in a straight line to a point on the
ground that is 6 meters from the base of the door
frame. There are 10 lights per meter of the string.
How many total lights are on the string?

Answers

Answer:

150 lights

Step-by-step explanation:

2.5 times 6 equals 15 times 10 is 150 their are 150 lights

PLEASE HELP ASAP
PLS LOOK AT THE PICTURE BELOW AND ANSWER

Answers

Answer:

79

Step-by-step explanation:

So the angles in a quadraleteral add to 360

so put this in as an equation

4x-10 +x+62 + 2x+ 68 +3x +10= 360

10x+130=360

10x = 230

x=23

then work out each angle to find the smallest

x +62 = 85

2x+68 = 114

3x+10 = 79

4x-10 = 82

Jayden is starting a business selling handmade necklaces. He has decided to invest an initial amount of $300 for advertising, and materials cost $8 for each necklace he makes. Jayden can sell his creations for $14 per necklace. Once he makes and sells a certain number of necklaces, he will break even, with identical expenses and sales. How many necklaces would that take?

Answers

Answer:

14-8=6/300=50 thats your answer

MQN is 17 and arc OP is 104. What is the measure of arc MPO?​

Answers

I honestly don’t know what your talking about

What is the sum of x- and y-coordinates of the midpoint between (-8,-4) and (-9, 8)?​

Answers

I think it’s (-17,4) sorry if I’m wrong but if I’m right then your welcome...

In which quadrant is csc 0 <0 and cos e > 0?
Your answer:

A.I
B.II
C.III
D.IV

Answers

Answer:

b

Step-by-step explanation:

b

how do you solve (7x + 5) - (3x + 2)

Answers

Answer:

x = 0.75

Step-by-step explanation:

Simplifying

(7x + -5) + -1(3x + -2) = 0

Reorder the terms:

(-5 + 7x) + -1(3x + -2) = 0

Remove parenthesis around (-5 + 7x)

-5 + 7x + -1(3x + -2) = 0

Reorder the terms:

-5 + 7x + -1(-2 + 3x) = 0

-5 + 7x + (-2 * -1 + 3x * -1) = 0

-5 + 7x + (2 + -3x) = 0

Reorder the terms:

-5 + 2 + 7x + -3x = 0

Combine like terms: -5 + 2 = -3

-3 + 7x + -3x = 0

Combine like terms: 7x + -3x = 4x

-3 + 4x = 0

Solving

-3 + 4x = 0

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '3' to each side of the equation.

-3 + 3 + 4x = 0 + 3

Combine like terms: -3 + 3 = 0

0 + 4x = 0 + 3

4x = 0 + 3

Combine like terms: 0 + 3 = 3

4x = 3

Divide each side by '4'.

x = 0.75

Simplifying

x = 0.75

Answer:

When solving equations like this, you have to use a method called PEMDAS.

This stands for:

P- ParentesisE- ExponentsM- MultiplyD- DivideA- AdditionS- Subtraction

(7x + 5) - (3x +2)

Let's work it out...

Step one) Distribute the equation

Distributing the equation helps simplify it and make solving much easier.

(7x−5) − 1(3x−2)

(7x−5) − 3x + 2

Step two) Eliminate the Parenthesis

Now that the equation is simplified, you can take out the Parenthesis.

(7x − 5) − 3x + 2

7x − 5 − 3x + 2

Step three: Add the numbers

Add the two whole numbers together (-5 + 2)

7x − 5 − 3x + 2

7x − 3 − 3x

Step four: Combine like terms

Combine like terms or the numbers with variables (7x - 3x)

7x − 3 − 3x

4x − 3

Solution

4x - 3

Hope this helped! :)

-3 = -5 - 2v
Need help
Show work

Answers

Answer:

v=-1

Step-by-step explanation:

-3=-5-2v

-3+5=-2v

2=-2v

2/-2=-2v/-2

v=-1

Answer:

Answer:

v=−1

Step-by-step explanation:

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

−3=−5−2v

Step 1: Simplify both sides of the equation.

−3=−5−2v

−3=−5+−2v

−3=−2v−5

Step 2: Flip the equation.

−2v−5=−3

Step 3: Add 5 to both sides.

−2v−5+5=−3+5

−2v=2

Step 4: Divide both sides by -2.

−2v

−2

=

2

−2

v=−1

Rachel paid $25.50 for three t-shirts. What was the unit price of the t-shirts?

A:$7.65 per shirt
B:$8.05 per shirt
C:$8.50 per shirt
D:$9.50 per shirt​

Answers

C: $8.50 per shirt $25.50/3

Answer:

C

Step-by-step explanation:

You do $8.50 Times 3 to get $25.50

*WORTH 100 POINTS*

What is the value of x?

Enter your answer in the box.

Answers

Answer:

39

Step-by-step explanation:

sum of interior angles of a triangle is 180

180-(102+39)=x

180-141=x

39=x

Answer:

39

Step-by-step explanation:

it should all add up to 180

102 + 39 = 141

180 - 141 = 39

Help with both questions please <3

Answers

Answer:

Step-by-step explanation:

Part A

A square pyramid surface area can be calculated using A = Lw (which gives you surface area of the base square) & 4 of A = bh/2 (which gives you surface area of the 4 triangles on the side)

This means overall A = Lw + 4(bh/2)

Length = L = 4"

Width = w = 4"

Base = b = w = L = 4"

Height = h = 6"

A = Lw + 4(bh/2)

A = Lw + 2bh     This is the answer after simplifying

A = (4")(4") + 2(4")(6")      This is the numerical expression.

A = 16" + 48" = 64"    This is the numerical answer.

A square prism surface area can be found using 2 of A = Lw (which represents the surface area of the 2 squares) and 4 of A = Lh (which gives you the surface area of the 4 rectangles).

This means overall A = 2Lw + 4Lh

Length = L = 4"

Width = w = 4"

Height = h = 6"

A = 2Lw + 4Lh

A = 2(4")(4") + 4(4")(6")    This is the numerical expression.

A = 128"     This is the numerical answer.

Part B

To see the difference between the 2 polyhedrons, I will place them as follows.

Pyramid Area = A = (4")(4") + 2(4")(6")

Prism Area = A = 2(4")(4") + 4(4")(6")

The numerical expression shows that the surface area of the prism has one more square area (as represented by 4"x4"), and has 2 more rectangular area (as represented by 4"x6").

The difference of the 2 numerical expressions can be found using subtraction:

A = [2(4")(4") + 4(4")(6")] - [(4")(4") + 2(4")(6")]

A = (4")(4") + 2(4")(6")

Hope this helps.

Three times the sum of a number, n, and 5 is at least 17. Which of the following inequalities properly models
this statement?
(1) 3n+5<17
(3) 3(n+5) 217
(2) 3n+5217
(4) 3(n +5) <17

Answers

Answer:

Step-by-step explanation:3

Answer: 3(n + 5) ≥ 17

HOPE THIS HELPS

Identify the best first step in solving the linear equation: x+12=10
add 12 to both sides of the equation


convert the equation to 12x=10


divide both sides of the equation by 12


subtract 12 from both sides of the equation

Answers

It’s is D subtract 12 from both sides of the equation

Which of the following expressions is equivalent to the expression 2(7x+3)

Answers

Answer:

14x+6 and (7x+7)+(3+3)

Step-by-step explanation:

In a rigid transformation on AABC, AA' - BB'-CC and AA' || BB' || OC'. Which of the following
transformations was applied to AABC?

A. reflection
B. translation
C. not enough information to determine
D. rotation

Answers

Answer:

I think is D. rotation

What is the equation of the line passing through (-7,0) and (0,14)

Answers

Answer:

y = 2x + 14

Step-by-step explanation:

8n+16.2=1.6



Plzzz

Help ,

Answers

Answer:

8n+16.2=1.6

n=-1.825

Step-by-step explanation: Subtract 16.2 from both sides 8n+16.2-16.2=1.6-16.2

Simplify 8n=-14.6/8

n=-1.825

Answer:

-1.825

Step-by-step explanation:

8n  +  16.2  =  1.6

(step1)      

8n  +  16.2  =  1.6

        - 16.2     -16.2

                       

8n      =      -14.6

(step2)

8n =  -14.6

----    ------

 8      8

(step3)

-1.825

1. subtract 16.2 from both sides, you have to get rid of the number that is being add/subtracted to get the n and result alone

2. divide by the number next to the variable since you have to get the variable alone in order to find out what it is. you divide because you have to do the opposite of what the variable IS doing.

3. get the result lol

PLZ HELP ME

Which expression is a factor of 16x^2-81

I will mark brainliest



A: 8x-9


B: 4x-9


C:8x-81


D: 4x-81

Answers

Answer:

B- 4x-9

Step-by-step explanation:

that's the answer

Rowan started school in 1999. Kira
started school 8 years after Rowan.
Which equation could be used to find
the year y in which Kira started school?
A y - 8 = 1999
BY + 8 = 1999
Cy+ 8 = 1999
Dy x 8 = 1999

Answers

I think a because if you add 8 to 1999 it is the year

A pair of shoes is on sale for 80% of the original price. The sale prive is $60. What was the original price?

Answers

Answer:

75

Step-by-step explanation:

You will set the equation up as part/whole = percent/100 and when you replace it with your numbers you get 60/x = 80/100 now you cross multiply and do 60*100 = 80 * x and you get 6,000 = 80x now you divide both sides by 80 then you get 75 was the original price

7/9 of 10800
please help quickly !!

Answers

Answer:

8400

Step-by-step explanation:

10800/9= 1200

1200*7= 8400

alternate exterior angles, corresponding, interior

Answers

Answer:

alternate exterior angles= 1,7 and 2,8 corresponding, interior 3,6 and 4,5

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