If -10x+3y = 9 and -4x+7y =1 are true equations,what would be the value of -6x-4y

Answers

Answer 1

Answer:

8

Step-by-step explanation:

Notice: we do not have to solve for x, and y. All we really have to do is to subtract the two equations.

(-10x + 3y) - (-4x + 7y) = 9 - 1.

Taking off the parentheses, we get:

-10x + 3y + 4x - 7y = 8.

Simplifying, we get:

-6x - 4y = 8.

So, the answer is 8.


Related Questions

60% of the 7,000 runners in a marathon were women. How many women ran the marathon?

Answers

Answer:

4200

Step-by-step explanation:

7000 x 0.60 = 4200

what 30 x 23 30 x 23

Answers

30 x 23 = 690

23 x 30 = 690

Answer: 690

Step-by-step explanation:

Now whats 34+35?

Which expression is equivalent to z2 + z + 4z3 + 4z2 ?
Group of answer choices

A.No answer text provided.

B.5z

C.4z3 + 5z2 + z

D.4z3 + 5z2

E.9z2 + z

Answers

I know the answere it is c

At a football game, 35% of people attending were supporting the home team, while 65% were supporting the visiting team. If 455 people attending the game supported the home team, what was the total number of people attending the game? Help me plz:))

Answers

Answer:

1300

Step-by-step explanation:

the figure shows the dimension of a city park in feet what is the area of the park?

A 968 ft2

B 1,088 ft2

c 1,208 ft2

d 73,084
i need help on this one ​

Answers

The answer would b C. 1,208 ft2

1. In the Fibonacci sequence {0, 1, 1, 2, 3, 5, 8, ...}, what is the value of Fs?
F5 = 5
F5 = 3
F5 = 8
O F5 = 13

NEED THIS ASAP
NEED A EXAM DONE WILL PAY

Answers

Answer:

f5= 5

Step-by-step explanation:

The value of F₅ in the given Fibonacci sequence is 5, i.e. option A is the correct answer.

What is the Fibonacci sequence?

Fibonacci sequence is a sequence in which each number is the sum of the two preceding ones.

i.e.

[tex]F_n = F_{n-1} + F_{n-2}[/tex]

We have,

Fibonacci sequence {0, 1, 1, 2, 3, 5, 8, ...}

i.e.

F₁ = 0, F₁ = 1, F₂ = 1, F₃ = 2, F₄ = 3, F₅ = 5, F₆ = 8

Now,

We have to find the value of F₅,

Here, for n = 5,

i.e.

[tex]F_5 = F_{5-1} + F_{5-2}[/tex]

i.e.

F₅ = F₄ + F₃

So,

F₅ = 3 + 2

So,

We get,

F₅ = 5

So, the value of  F₅ for the given sequence is  F₅.

Hence, we can say that the value of F₅ in the given Fibonacci sequence is 5, i.e. option A is the correct answer.

To know more about Fibonacci sequence click here

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Is the slope positive or negative?

Answers

the slope is positive

r=26 in. find the diameter.

Answers

Answer:

see

Step-by-step explanation:

diameter=2×pi×r

diameter. 2.22/7.r

A circle had a radius 20 cm. What is the area?

Answers

Answer:

use formula πr^2

Step-by-step explanation:

the area is 1257.14cm^2

Write your answer with no spaces and any fraction with “/“

Answers

Answer:

The slope is 1/2

Step-by-step explanation:

Hi!

Disclaimer: Just for this response, I'm going to write it the same way you write a fraction out on paper just so it's easier to see.

First, you plot the two coordinates on the graph:

(0,0) and (2,1)

The formula for slope is [tex]\frac{y1 - y2}{x1 - x2}[/tex]

Now we plug in numbers accordingly:

[tex]\frac{0 - 1}{0 - 2}[/tex]

Simplify:

[tex]\frac{-1}{-2} \\[/tex]

Simplify:

[tex]\frac{1}{2}[/tex]

Let me know if you have any questions

sequence
60,45, 33.75 ....​

Answers

33.75,45,60 is the answer!!!!
The next number in the sequence is 25.3125.
60 x .75 (or 3/4) = 45
45 x .75 = 33.75
33.75 x .75 = 25.3125

Is this correct please answer

Answers

Answer:

no need to skip a line between the office equipment and common stock.

Step-by-step explanation:

3
What is the solution to the equation 9x = 54?
x = 6
B) x = 7
C
X = 8
x = 9

Answers

Answer:

6

Step to Step:

9x6=54

Answer:

Option A

Step-by-step explanation:

In order to find the answer to this equation you must remember to divide if there is a variable right next to the number.

[tex]9x=54[/tex]

[tex]\div9[/tex]

[tex]54\div9=6[/tex]

[tex]x=6[/tex]

Hope this helps.

what is the variable in the expression 3y+8​

Answers

The variable: is y

The variable is y




A total of 190 people attended the opening night of a school
musical. Student tickets cost $4.50 each while general
admission tickets cost $6 each. If total sales were $996, how
many general admission tickets were sold?

Answers

Answer:

94

Step-by-step explanation:

x=student tickets y=general admission

We can write the two following equations

x+y=190

4.5x+6y=996

I am going to solve this through substitution

We first need to get a variable by itself

x+y=190

x-190= -y

-x+190=y

We can plug this value in for y into the second equation

4.5x+6(-x+190)=996

4.5x-6x+1140=996

-1.5x= -144

x=96

Now that we know that x=96 we can plug this value into any of the two beginning equations and solve for y

96+y=190

y=94

Factor completely and then place the factors in the proper location on the grid.

4 n2 + 28 n + 49

Answers

Answer:

(2n+7)^2

Step-by-step explanation:

Pls help me jenejfnnfnwndndbenjwjdndnwkjs

Answers

19 in is less than 2yrds and 4in.

Answer:

I have no clue

Step-by-step explanation:

HAHA

Masha bought 24 snickers, 56 kit kats and 96 twixies to make identical goody bags with the same number of snickers twixies and kit kats. What is the largest number of identical goody bags masha can make if she wants to use all the candies

Answers

Answer:

it is 24

Step-by-step explanation:

HELP ME PLEASEEE ASAPPP

Answers

I believe the answer is A

find x. and rounddddd

Answers

Answer:

X=117.9

Step-by-step explanation:

I got itttt

Which is the correct order of the numbers from least to greatest? -4/5, 3, 0.4, -1, -5/4​

Answers

Answer:

-5/4, -1, -4/5, 0.4, 3

Step-by-step explanation:

Answer:

-4/5 -1 -5/4 .4 3

Step-by-step explanation:

Cooper measured the lengths of 10 buttons to the nearest centimeter.The lengths of the buttons were 4,6,4,3,5,6,5,4,3, and 6 centimeters

Answers

Cool nothing for me to answer

The deminsions of a rectangler prism are 5cm, 6cm, and Xcm. Its surface area is 148 cm2. Find the other deminsion.​

Answers

Answer:

The other dimension is x=4 cm

Step-by-step explanation:

Surface Area of a Rectangular Prism

Given a rectangular prism of dimension x, y, and z. Its surface area is calculated with the formula:

A = 2(xy + yz + xz)

We are given the dimensions y=5 cm and z=6 cm. We also have A=148 cm2. Substituting:

148 = 2(x*5 + 5*6 + x*6)

Dividing by 2:

74 = x*5 + 5*6 + x*6

Operating:

74 = 5x + 30 + 6x

Simplifying:

74 = 11x + 30

Subtracting 30:

44 = 11x

Dividing by 11:

x = 4 cm

The other dimension is x=4 cm

John needs to figure out the heat change, in watts, of circuit with 20 ohms of resistance and thats carrying a current of 5 amps. What is his result?
A) 250
B) 125
C) 500
D) 100

Answers

I think it’s b or c but I’m not sure

When the American Idol competition was down to the final two contestants, the winner was ahead of the second-place finisher by $12$ million votes. If the total number of votes was $90$ million, how many votes did the winner get?

Answers

Answer:

I know you go to aops...

Step-by-step explanation:

First show your thinking before you ask others how to solve a problem, and ASK YOUR TEACHER FOR HELP!!

If the movie theater seats 328 people, what is the maximum amount of money the theater can bring in during a show?​

Answers

Answer:

how much money does it cost for one person??

Jeffrey needs $200 to buy a new iPod. Right now, he has $75. What percent of the $200 does he have?


PLEASE HELPPP

Answers

Answer:

40%

Step-by-step explanation:

Answer:

If you need help on further questions like this, divide what he has to what he needs or his goal

in order to get 37.5% you have to divide 75/ 200

You will get 0.357 and that is 37.5% this is ABOUT 40% but I reccomend putting 37.5% to be safe.

What is the slope of a line perpendicular to the line whose equation is x + 2y =8.
Fully reduce your answer.

Answers

Answer:

2

Step-by-step explanation:

First, put the line into y = mx + b form to find the slope (m)

x + 2y = 8

Subtract x from both sides

2y = -x + 8

Divide each side by 2

y = -1/2x + 4

So, the slope of this line is -1/2

Perpendicular lines have a opposite reciprocal slope, so the slope of a perpendicular line will be 2.

Pls can someone answer how to round 5pi to the nearest 10th I’ll give you brain points or whatever

Answers

Answer:

Step-by-step explanation:

5[tex]\pi[/tex]=15.70...

To round a number to the nearest tenth , look at the next place value to the right (the hundredths)which is 0 in this question.

Thus, it will become 15.7

The circumference of the circle is 5π mm or 15.7 mm if the diameter of the nickel (circle) is 5 millimeters.

What is a circle?

It is described as a set of points, where each point is at the same distance from a fixed point (called the center of a circle)

It is given that:

The diameter of the nickel (circle) is 5 millimeters

D = 5 millimeters

The circumference of the circle = πD

Plug D = 5 millimeters in the above formula:

The circumference of the circle = 5π mm

As we know,

π = 3.141 ≈ 3.14 (Rounded to the nearest the Hundredths Place)

The circumference of the circle = 5π = 15.70796 mm

The circumference of the circle = 15.70796 = 15.7 mm

(Rounded to the nearest Tenths Place)

Thus, the circumference of the circle is 5π mm or 15.7 mm if the diameter of the nickel (circle) is 5 millimeters.

Learn more about circle here:

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Kelly wants to buy cupcakes for her family. The radius of the cupcake is 12
inches, what is the distance around the cupcake? *
Your answer

Answers

Answer:

75.4 inches

Step-by-step explanation:

circumference = 2πr = 24π ≅ 75.4 inches

It's really more of a tubcake than a cupcake.

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