Is (2, 7) a solution to this system of equations?
x + y = 9
3x + 13y - 9

Answers

Answer 1

Answer:

No

Step-by-step explanation:

Assuming that you put the wrong sign for the second equation if you plug (2,7) into the two equations it only works for one equation.


Related Questions

Mike has $85 to spend at the carnival. He spends 34% on food. How much money does he have left to spend?

Answers

Answer:

$56.10

Step-by-step explanation:

$0.34 removed for every dollar

.34 x 85 = $28.9 removed

85 - 28.9 = $56.10

hope this helped please mark brainliest if this helped :)

the answer to this is $56.10

Annalisa, Keiko, and Stefan want to compare their heights. Annalisa is 64 inches tall. Stefan tells her, "I'm about 7.5 centimeters taller than you." Keiko knows she is 1.5 inches shorter than Stefan. Give the heights of all three people in both inches and centimeters to the nearest half unit.


Annalisa is 64 inches or about
cm tall.

Stefan is about
inches or about
cm tall.

Keiko is about
inches or about
cm tall.
i need the in and cems of Stefan and Keiko

Answers

Answer:

okay so this is kind of confusing but

Annalisa - 64 inches, 162.56 centimeters

Stefan - 67 inches, 170.18 centimeters

Keiko - 65 inches, 165.1 centimeters

Step-by-step explanation:

HELP ME PLS WALLAH THIS IS HARD

Answers

Answer:

42

Step-by-step explanation:

use the Pythagorean theorem :D

Answer:

[tex] \underline{\boxed{x = 42}}[/tex]

Step-by-step explanation:

[tex] {70}^{2} = {x}^{2} + {56}^{2} \\ {x}^{2} = {70}^{2} - {56}^{2} \\ x = \sqrt{( {70}^{2} - {56}^{2} )} \\x = \sqrt{(4,900 -3,136) } \\ x = \sqrt{1,764} \\ x = 42[/tex]

Is Mikasa less than or equal to Levi
This is math I promise

Answers

Answer:

less than because levi is one of the most skilled

Answer:

She is less than Levi

Step-by-step explanation:

Levi has literally decades more experience of fighting titans than Mikasa. Also, as revealed in the latest chapters, both are part of the Ackerman family which was the product of titan experiments. Also, five seconds don't really help Mikasa. So, yeah, Levi wins, no doubt.

What is the value of x in the solution to the system of linear equations?
y - 2x = -1
14 + 2y = 8x

Answers

Answer:

(3,5)

value of x is 3

value of y is 5

the drama club is selling tickets for the spring musical each student ticket is $5 each adult ticket is $8 total of $222 tickets were sold the total ticket sells for $1,626 which system of equation can be used to represent the situation​

Answers

Answer and Step-by-step explanation:

I don’t really know which system of equation to use, but I did the work. I also think there is supposed to be an attached picture but it’s fine

——————————————————————————————————————

Let x be students

Let y be adults

x + y = 222

5x + 8y = 1,626. <— let’s use the elimination/addition method to Solve this. Also, let’s eliminate y.

8 (x + y = 222)

-1 (5x + 8y = 1,626)

8x + 8y = 1,776

+ -5x - 8y = -1,626 <— add both of them

——————————————

3x = 150 <— divide 150 by 3

x = 5

W what is the volume of this cube?
cuble centimeter
6 cubic centimeters
1 cm
(1) 3 cubic centimeters
1 cm 1 cm
9 cubic centimeters

Answers

Answer:

1 cubic centimeter

Step-by-step explanation:

volume = 1 × 1 × 1 = 1 cm²

The answer is 1 cubic cm

Jenna wants to rent a mountain bike by the week. Identify the independent variables that affect the total rental cost.

Answers

Answer:

2845

Step-by-step explanation:

A study of pet owners included 752 owners who were chosen at random. Of these pet owners, 63% said they had spayed or neutered their pets. Vet records show that only 39% of pet owners spay or neuter their pets. Identify the statistic and the parameter. (4 points)

Sixty-three percent is the parameter and 39% is the statistic.
Sixty-three percent is the statistic and 39% is the parameter.
Seven hundred fifty-two is the parameter and 63% is the statistic.
Seven hundred fifty-two is the statistic and 63% is the parameter.
Seven hundred fifty-two is the parameter and 39% is the statistic.

Answers

Answer:

Sixty-three percent is the statistic and 39% is the parameter.

Step-by-step explanation:

The statistic and the parameter are to be considered as 63% is the statistic and 39 % is the parameter.

Identification of the statistic and the parameter:

Here the parameter represent the fixed measure that explained the overall population that share the related and common attributes.

And, the statistic means the attribute of the sample or the portion of the target population.

Hence, Sixty-three percent is the statistic and 39% is the parameter.

Learn more about statistic here: https://brainly.com/question/16840464

f(x) = -2 (3)x - 2

Answers

Answer:

Bebe he duff or my yiiyisidduxid

am I supposed to simplify or find the value of x?

BRAINLIEST
please help And leave just a small explanation and I’ll mark brainliest :)

Answers

Answer:

A. The value of u should be 115 because the two angles shown in the figure are congruent.

Step-by-step explanation:

You can see the placement of the angles and their relationship, which is corresponding angles. This makes them congruent.

hope this helps! :)

Answer:

A)

Step-by-step explanation:

Corresponding angles of two parallel lines are always equal. In this case, [tex]m\angle U[/tex] corresponds with the one marked as [tex]115^{\circ}[/tex]

Solve this equation with ÷, ×, -, or +.
18 _ 2 × 4 = 26

Answers

Answer:

+

Step-by-step explanation:

b/c

18+2×4

18+8

26

hope it's helpful ❤❤❤

THANK YOU.

a bakery used 25% less butter this month than last month.

The bakery used 240 kilograms of butter this month.

How much did it use last month?

Answers

Answer:

300kg

Step-by-step explanation:

A student was measuring water in a graduated cylinder. The student read the amount of water at 20 ml. The actual amount of water in the graduated cylinder was 17 ml. What is the approximate percent error?
A.
3%

B.
8%

C.
15%

D.
18%

Answers

The answer is D. 18%

what is the answer to this

factor 2k+5

Answers

2k + 5

2k + 5 = 0

       -5

2k       =    -5

2k ÷ 2  -5  ÷ 2

k = 2.5 or 5/2

3x − 2y = 18
y = 2x − 13

Answers

Answer:

x = - 8

3x - 2y = 18 is the same as 3x - (2x - 13 times 2) = 18

Then I used an algebra site for the rest.

It should be x = - 8

I'm guessing you want x and y solved.

Answer: x=10 and y=6

Explanation:

For X: Substitute the y-equation (y-2x-13) into the first equation (3x-2y=18) so your equation is 3x-2(2x-13)=18. Do the distribution property and the equation will be 3x-4x+26=18. Put like terms on the same side of the equal sign and combine like terms (subtract 26 on both sides) and the equation will be -x = -10. To make x positive, make both sides positive and you get x=10.

For Y: Substitute your x answer (10) into the first equation (3x-2y=18) and you will get 30-2y=18. Subtract 30 from both sides and you get -2y=12. Divide both sides by the common factor of -2 and you get y=6.

In ΔXYZ, y = 53 inches, z = 55 inches and ∠X=120°. Find the length of x, to the nearest inch.

Answers

Answer: 94

Step-by-step explanation:

*8th grade math*
1.6(1 + 0.5n) - 3, 2 = 1.1(n - 6.8)
please answer with work

Answers

Answer:

67

Step-by-step explanation:

                        __

Answer:   5.4945...

Step-by-step explanation:

1.6 (1 + 0.5n) − 3 , 2 = 1.1 (n − 6.8)

Rewrite the equation as 1.1 (n − 6.8) = 2.

1.1 (n − 6.8) = 2  

Divide each term by 1.1 and simplify.

  Divide each term in 1.1 (n − 6.8) = 2 by 1.1.

      1.1 (n − 6.8)/1.1  = 2/1.1

   Cancel the common factor of 1.1.

      n − 6.8 =  2/1.1

   Divide 2 by 1.1.                          

      n − 6.8 = 1.81...

Move all terms not containing n to the right side of the equation.

   Add 6.8 to both sides of the equation.                  

      n = 1.81... + 6.8            

   Add 1.81... and 6.8.

      n = 8.618...

Replace the variable n with 8.618... in the expression.

1.6 (1 + 0.5 (8.618...)) − 3  

Simplify each term.  

  Multiply 0.5 by 8.618...

      1.6 (1 + 4.309...) − 3

  Add 1 and 4.309...

      1.6 ⋅ 5.309... − 3

   Multiply 1.6 by 5.309...

      8.4945... − 3

  Subtract 3 from 8.4945...

      5.4945...

Calculate the value of the expression -8 x -3/4
A. 6
B. -6
C. 4
D. -4
E. -7

Answers

Answer:

A

Step-by-step explanation:

- 8 × - 3 = 24 ÷4=6

this is the right answer

The amusement park has two plans available for the school to choose from. Plan A is listed in the table below.


Cost (per vehicle) = $10
Cost (per person) = $30


The cost of Plan B can be calculated using the formula c = $15v + $28p, where c represents the cost, v represents the number of vehicles, and p represents the number of people. The school has a budget of $7200 for the cost of tickets and parking. If 241 students are going on the field trip, which plan should the school purchase? Explain your reasoning.

Answers

Answer:

the second plan should be purchased.

Step-by-step explanation:

school budget is $7200

plan 1: 241 students are $30 each is

241 × 30 = $7230 which is over budget with no money for parking for the vehicles.

plan 2: 241 students are $28 each is

241 × 28 = $6748

with a budget of $7200 for the trip the amount left for parking is

$7200 - $6748 = $452

plan 2: Parking is $15 per vehicle

Therefore the remaining $452 can be used to pay for 452 ÷ 15 = 30.13 vehicles

The school should purchase Plan 2 for the field trip.

The budget of $7200 can pay for 241 tickets for students and parking for 30 vehicles

The school should purchase the second plan.

School's budget = $7200

The cost for the first plan will be:

= 241 × $30

= $7230

This is more than the school budget of $7200

For the second plan, the cost will be:

= 241 × $28

= $6748.

This is below the school budget and therefore affordable.

The school should choose the second plan as there'll be more money available for parking.

Read related link on:

https://brainly.com/question/20316827

Please help me with my homework!!!!!!!

Answers

A and b I believe I think it is

Answer:

A, C, E

Step-by-step explanation:

- (3/4) = -3/4

A: A is correct because it is the same equation as above.

B: -3/-4

The negatives cancel out each other, so it would just be 3/4, which is not the same as -3/4, so B is incorrect

C: -3/4 is equal to -3/4, so C is correct

D: -(-3/4)

The negative signs cancel each other out, so it equals 3/4. D is incorrect

E: 3/-4 = -3/4, so E is correct

A die is rolled 200 times with the following results.
Outcome
1
2
3
4
5
6
Frequency
32
36
44
20
30
38
What is the experimental probability of rolling the given result?

a number less than 3
a.
0.68
c.
0.34
b.
0.56
d.
0.66

Answers

.34. conch hvnvjvhchch huh hbu i

Farid bought x rulers for RM3.90 each and y pieces of sticker for
RM1.80 each with the price RM33.90. If the total of rulers and
stickers that he bought is 13, find the value of x and y.

Answers

Answer:

y+mx+b

Step-by-step explanation:

Do you guys know the answers??

Answers

Answer:

Hope this helps!

Step-by-step explanation:

1.  9.38

2. 9.80

3. 11

4. 9.85

5.  15.23

6.  15

7. 9.95

8. 27

9. 26.96

10. 14.14

Step-by-step explanation:

on the picture

if it's helpful ❤❤❤❤❤

THANK YOU.

can someone help me with this

Answers

Answer:

1

Step-by-step explanation:

Which equation is NOT a linear function?
y = 17
y=-4x – 12
y = x2-2
y = 5x
I ready

Answers

Answer:

y=x^2-2

Step-by-step explanation:

this equation is not a linear function because the equation is that of a quadratic function

The Expressions -3(8) and 3(-8) have a value of -24. Write three different multiplication expressions using two integers that also have a value of -24.

plz help me

Answers

Answer:

2(-12), -1(24), 6(-4)

Step-by-step explanation:

Help!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

173.2m

Step-by-step explanation:

Let C be the position of the meteorological station, B the position of the balloon and CB be the cable.

Let the height of the balloon from the ground be AB=hmetres.

In a right angled triangle ACB

BC

AB

=sin60

200

h

=

2

3

since

sin60

=

2

3

⇒h=200×

2

3

⇒h=100

3

∴h=100×1.732=173.2 since

3

=1.732

Hence, the height of the balloon above the ground is 173.2m

The answer would be 173.3 or 173.2 m for it

What is the length of jL​

Answers

Answer:

18 ft

Step-by-step explanation:

Since the 2nd triangle is 2x larger than the 1st one, you multiply by 2 on the matching side to get the answer.

(hope this helps!)

Joanna received a loan from the bank for $5,000, and she plans on paying the loan back in 3 years. She will have paid $800 in simple interest. What is the simple interest rate of the bank loan? *
1 point
.05%
5.3%
18.75%

Answers

Answer:

5.3 is the amswer! Hope u pass

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