−9x+y= \,\,71 71 -x-y= −x−y= \,\,-1 −1 \mathbf{Add}\text{ to eliminate }\mathbf{y.}Add to eliminate y. \mathbf{Subtract}\text{ to eliminate }\mathbf{x.}Subtract to eliminate x. \mathbf{Subtract}\text{ to eliminate }\mathbf{y.}Subtract to eliminate y. \mathbf{Add}\text{ to eliminate }\mathbf{x.}Add to eliminate x.

Answers

Answer 1

Answer:

Add to eliminate y.

Step-by-step explanation:

Given the equations

-9x + y =  71.... 1

-x - y = -1 .... 2

Using elimination method we can eliminate y first since they have the same coefficient.

To do that we will need to add up both equations. We are adding because the coefficient of y in both equations has different signs. If they have the same sign, we would have subtracted.

Hence the correct option in this case is to add to eliminate y.


Related Questions

368 Divided By 216,016

Answers

0.00170358
is the answer

Answer:

587

Step-by-step explanation:

Okay, so when you divide this using calculator you get your answer

of 587.

But if you would like to do this the right way then it would look something like this:

Jan 24, 11:13:55 PM
Lincoln is throwing a pizza party. He has 7 pounds of cheese available and he needs
pound of cheese to make each pizza. How many pizzas can he make?
Answer type: Mixed nunery
Mixed nuntler
Whole number
Fraction

Answers

Answer:

The answer is a Whole number which would be 7.

Step-by-step explanation:

If he need one pound of cheese for each pizza and he has seven pounds of cheese then he would be able to make 7 pizzas.

Answer:

He can make 7 pizzas.

Step-by-step explanation:

If he only has seven pounds, and it takes one pound to make one pizza, you can divide the pounds available (7) by the pounds needed to make a whole unit (1 pizza).

7/1 = 7

PLEASE HELP WITB THIS ASSIGMENT. WILL MARK BRAINLEIST 4. 5. And 6. Goes together by the way just so for no confusion and so does 1. And 2. PLEASE HELP THOUGH I AM SO CONFUSED

Answers

Answer: See explanation

Step-by-step explanation:

1. 4 apples cost $1.59

1 apple would cost $1.59 ÷ 4

1.59 ÷ 4 = 0.3975

0.3975 ≈ 0.40

1 apple would cost approximately 40 cents.

2. 3 apples cost $1.00

1 apple would cost $1.00 ÷ 3

1.00 ÷ 3 = 0.3333

0.3333 ≈ 0.33

1 apple would cost approximately 33 cents.

3. Loose apples are the better buy because 1 apple costs approximately 33 cents while packaged apples cost approximately 40 cents.

4. 15 ounces cost $1.05

1 ounce would cost $1.05 ÷ 15

1.05 ÷ 15 = 0.07

1 ounce would cost 7 cents.

5. 48 ounces cost $2.39

1 ounce would cost $2.39 ÷ 48

2.39 ÷ 48 = 0.0497

0.0497 ≈ 0.05

1 ounce would approximately cost 5 cents.

6. The 48-ounce jar of applesauce is the better buy because 1 ounce costs approximately 5 cents while a 15-ounce jar of applesauce costs 7 cents.

7. 15 ounces cost $1.54

1 ounce would cost $1.54 ÷ 15

1.54 ÷ 15 = 0.1026

0.1026 ≈ 0.10

1 ounce would approximately cost 10 cents.

8. 6 (six 1 ounce) ounces cost $1.15

1 ounce would cost $1.15 ÷ 6

1.15 ÷ 6 = 0.1916

0.1916 ≈ 0.19

1 ounce would approximately cost 19 cents.

9. The larger box of raisins has a lower unit cost of 10 cents.

10. When buying fruits, you might think about the quality of the fruit, the size.. etc.

Hope I helped!

A sales agent is paid 4000$ every month and a commission of 0.8% on total sales. If he receives 5192$ at the end of the month, find the total sales.​

Answers

Answer:

$60000 According to my calculations

Total pay = 4000 + 0.8*total sale
Total sale = (5129 - 4000)/0.8
= (1129/0.8) = 1411.25

What is 20 times 3.7758433975367

Answers

Answer: 75.5168679507.

HELPPPPPPPP
Hynes Strength Headquarters charges $40 for a sign-up fee plus $20 per month to join the gym. Orlando has paid $180 for his gym membership so far. What linear equation represents this situation?

40x + 20y = 180
y - 180 = 20(x - 40)
y = 20x + 40
x = 40y + 20
y = 40x + 20
y - 40 = 20(x - 180)

I think that it is y = 20x + 40 but I’m not sure.

Answers

Yes, you are correct, the answer is y = 20x + 40. 40 is the y-intercept value and 20 is the slope because that is the fee that must be payed every month, or x amount of times.

Six less than 2 times a number is 50. What is the number?

Answers

Answer:

a + b = 50 (Two numbers total 50)

b = a - 6 (one number is 6 less than the other)

Since we have a value, we can use the substitution metod:

a + a - 6 = 50

Simplify:

2a - 6 = 50

From here, you should know how to isolate a variable--add 6 then divide by 2 in this case. That'll give you a, and you'll be able to use that to solve for b.

2(a) -6= 50

2a-6= 50

six goes and adds to 50 on the other side

2a = 56

divide both sides by 2

a= 28

final answer 28

Cassie can run 1/2 mile in 1/6 of an hour. How far can she run in 1 hour?

Answers

If it takes her 1/6 per hour to run half a mile. Let's see how long she can run in one hour.
To get from 1/6 hour to 1 hour .. we need to multiply by 6.
6 * 1/6 = 1
We will now also need to multiply her distance by 6
1/2 * 6 = 6/2 = 3

Now we know she runs 3 miles in one hour. Which is also her speed. 3mph

If it takes her 1/6 per hour to run half a mile. Let's see how long she can run in one hour.
To get from 1/6 hour to 1 hour .. we need to multiply by 6.
6 * 1/6 = 1
We will now also need to multiply her distance by 6
1/2 * 6 = 6/2 = 3

Now we know she runs 3 miles in one hour. Which is also her speed. 3mph

function or not a function?

Answers

Answer:

not a function

Step-by-step explanation:

there are two of the same inputs 4 and 4 that will cause it to not be a function

What’s the slope here, help me out pleasee!

Answers

Answer:

-2/3

Step-by-step explanation:

multiplying by 0.21 is the same as decreasing by ____%?​

Answers

Answer:

Step-by-step explanation:

Multiplying by 0.21 is the same as decreasing by 21%?​

Answer:

21%

Step-by-step explanation:

the decimal for a percents is moved two places anytime it is multiplied.

1. True or False: The slope of this line is 1/3. if false what is the slope of the line

Answers

this is false. The slope is 2/3

What is the equation of the line in slope-intercept form?
Write your answer using integers, proper fractions, and improper fractions in
simplest form

Answers

Answer:

The equation of the line in the slope-intercept form will be:

y = -7x

Step-by-step explanation:

The slope-intercept form of the line equation

y = mx+b

where  

m is the slope b is the y-intercept

From the attached graph, taking two points

(0, 0)(-10, 70)

Finding the slope between (0, 0) and (-10, 70)

[tex]\mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}[/tex]

[tex]\left(x_1,\:y_1\right)=\left(0,\:0\right),\:\left(x_2,\:y_2\right)=\left(-10,\:70\right)[/tex]

[tex]m=\frac{70-0}{-10-0}[/tex]

[tex]m=-7[/tex]

Determining the y-intercept:

We know that the value of y-intercept can be determined by setting x = 0, and determining the corresponding value of y.

From the graph, it is clear that:

at x = 0, y = 0

Thus, the y-intercept b = 0

Now, substituting m = -7 and b = 0 in the slope-intercept form

y = mx+b

y = -7x + 0

y = -7x

Therefore, the the equation of the line in slope-intercept form will be:

y = -7x

What is the answer for X-6=-4+5

Answers

Answer:

7 just did the work I would attach it but I don't know how to lol

x=7

Answer:

x=7

Step-by-step explanation:

x-6=-4+5

x-6=1

x=1+6

x=7

Check:

(7)-6=-4+5

1=1

Hope this helps. Have a nice day you amazing bean child.

identify the function shown in this graph

Answers

A  i think im not really sure im also thinking it might be B

10. Find the width of the canyon.
13.
width = ?
22 m
15 m
160 m
I need help asap​

Answers

Answer:

Therefore, the width of the canyon is 109.09 meters.

Step-by-step explanation:

* 160/22 = k (Scale Factor)

  7.2727 = k

* Let x be the width of the canyon

 x / 15 = k

 x / 15 = 7.2727

 x = 7.2727 (15)

 x = 109.09 m

The width of the canyon is 109.09m.

The calculation is as follows:

Here we assume x be the width of the canyon.

The k(Scale factor) should be

= [tex]160 \div 22[/tex]

k =  7.2727  

So,

[tex]x \div 15 = k\\\\ x \div 15 = 7.2727[/tex]

 x = 109.09 m

Learn more: brainly.com/question/17429689

please helppp me!!!!!

Answers

Answer:

Step 2 contains error in the given problem.

Step-by-step explanation:

Given expression is:

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

Step 1: identifying the LCM.

The LCM identified is 6.

This step is correct.

In the next step, we multiply the LCM with each term of the equation.

Step 2:

[tex]\frac{6}{1}(\frac{1}{2}x) -3 =\frac{6}{1}(\frac{1}{3}x)+6[/tex]

However,

In the given solution, the LCM is not multiplied with each term.

Hence,

Step 2 contains error in the given problem.

What is an equation of the line that passes through the point (6,7) and is parallel to the line 2x-3y=92x−3y=9?

Answers

Step-by-step explanation:

Hi Ariana. There is no solution to this question as no line has the equation 2x-3y=92x-3y=9. Perhaps you copied wrongly. Kindly look at the source and come again for assistance

3x ×?=90 somebody help me please​

Answers

Answer:

Step-by-step explanation:

3x*(?)=90

?=90/3x

?=30/x

what is the value of the letter u?

Answers

Answer:

35+115+u+2u=360(as angles of quadrilateral sum up to it)

150+3u=360

3u=360-150

3u=210

u=210/3

u=70

Step-by-step explanation:

Here are 2 bowls. One of them has 25 gems and the other has 15 gems. Some of them are red.All the gems from the two bowls are now put into a third bowl. What fraction of the gems in the third bowl will be red?

Answers

Answer:

the answer is [tex]\frac{25}{15}\\[/tex] Hope this helps :}

Step-by-step explanation:

Here are 2 bowls. One of them has 25 gems and the other has 15 gems. Some of them are red. All the gems from the two bowls are now put into a third bowl. What fraction of the gems in the third bowl will be red?

Anyone know the answer?!

Answers

Answer:

Slop intercept form hopefully this helps

An envelope is 5 cm longer than it is wide. The area is 104 cm squared. Find the length and the width.

Answers

Answer:

8 x 13 = 104 cm squared. So the envolope is 8 cm by 13 cm

Step-by-step explanation:

8 x 13 is 104 and 13 is 5 more then 8. Hope this helps. Have a great day!

3(x-4)=2(-2x+1) what does x equal

Answers

Answer:

x = 2

Step-by-step explanation:

Given

3(x - 4) = 2(- 2x + 1) ← distribute parenthesis on both sides

3x - 12 = - 4x + 2 ( add 4x to both sides )

7x - 12 = 2 ( add 12 to both sides )

7x = 14 ( divide both sides by 7 )

x = 2

Answer: 2=x

Step-by-step explanation:

3(x-4)=2(-2x+1) <- multiply number outside of parentheses by numbers inside parentheses

1)3x-12=-4x+2

2)-3x      -3x <- subtract -3x

-12=-7x+2 <- what you should have after

3)-2      -2 <- subtract 2

-14=-7x <- what you should have after

4)/-7 /-7 <- divide by -7

2=x <- what you should have after

/= divide

remember: negative multiplied by a negative equals a positive, and a negative multiplied by a positive equals a negative.

A straight angle has four angles. angle 1=39º, angle 2=54º, angle 3=48º, what is the measure of angle 4 ?

ANYONE HELP

Answers

Answer:

39 degrees

Step-by-step explanation:

Add: 39+54+48=141

180 (degrees of a straight angle) minus 141=39

39 degrees

Hope I helped!! :)

Brainliest?!?!

Stay safe and have a good day/night/afternoon!!!

why is 0.65 bigger than 3/5?

Answers

3 divided by 5 is 0.6 so 0.65 is bigger

Answer:

yes

Step-by-step explanation:

3/5 = 0.6 =0.60

hence it's bigger than 0.65

If f(x)=-3x-2, find each value.
1. f(3)

Answers

Answer:

Step-by-step explanation:

plug in 3 for x then simplify

-3(3) - 2

= -9 - 2

= -11

hope this helps <3

3^-6 x (3^4 divided by 3^0)^2. simplfyed i need it quick im about to guess

Answers

Answer:

Step-by-step explanation:

first the parenthesis

3^4/3^0=3^4

anything raised to the power of 0 is 1

(3^4)^2=3^8     you multiply the powers

3^-6 * 3^8= 3^(-6+8)=3^2

Thhe simplified form of the expression is 9

Indices are expressed as power or exponent which is raised to a number or a variable.

According to the law of indices

[tex]a^n \times a^m = a^{n+m}\\a^n \div a^m = a^{n-m}[/tex]

Given the expression

[tex]3^{-6} \times (\dfrac{3^4}{3^0} )^2[/tex]

This can also be expressed as:

[tex]=\dfrac{1}{3^6} \times (\frac{3^4}{1})^2 \ (3^0 =1)\\= \dfrac{1}{3^6} \times 3^8\\=\dfrac{3^8}{3^6}\\=3^{8-6}\\=3^2\\=9\\[/tex]

This shows that the simplified form of the expression is 9

Learn more here; https://brainly.com/question/11116645

Your family is putting in a rectangular pool in the back yard. The pool's perimeter equals 28 feet. The contractor want the length to equal 5 more feet than 3 times the width. What will the width of your garden be?

Answers

Answer:

2.25 ft

Step-by-step explanation:

Perimter= 28ft

W= x ft

L= 3x+5

but

P=2L+2W

substitute

28=2*(3x+5)+2x

28=6x+10+2x

collet like terms

28=8x+10

28-10= 8x

18=8x

divide both sides by 8

x= 18/8

x=2.25 ft

Hence the width is 2.25 ft

PLEASE HURRY!! combine the radicals:

Answers

Step-by-step explanation:

The terms 9√x - 3√x have a common factor of √x.

Therefore 9√x - 3√x = √x * (9 - 3) = 6√x.

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