Solve the following system of equations using SUBSTITUTION METHOD.

SHOW YOUR WORK for full points. Write your answer as an (x,y) point.

x = 4y - 1
3x + 2y =39

Answers

Answer 1
Multiply the 1st row by 3
3x−12y=−3
3x+2y=39

Subtract the 2nd row from the 1st row.
−14y=−42

Solve for y (-14y=-42)

Divide both sides by −14.

Y= -42/-14

Two negatives make a positive.
Y=42/14

Simply 42/14 to 3
Y=3

Sub y=3 into both equations
3x-12x3=-3
X=11

Therefore,
X =11
Y=3

Related Questions

Children 12 and under eat free at a local restaurant. If x represents age, write an inequality to represent people who do not get a discount.

Answers

Answer:

12 ≤ x

Explanation:

Kids 12 and under, meaning that the age of someone who enters the restaurant has to be less than or equal to 12 to eat free

The inequality which represents the age of the people who do not get the discount is x > 12.

What is Linear Inequalities?

Linear inequalities are defined as those expressions which are connected by inequality signs like >, <, ≤, ≥ and ≠ and the value of the exponent of the variable is 1.

Given that,

Children 12 and under eat free at a local restaurant.

Let x represents the age of the people.

Since the children who are 12 and under will get the discount, the age of the people who do not get the discount is the people with age greater than 12.

That is the inequality representing this situation is,

x > 12

Hence the required inequality is x > 12.

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Please answerrrrrrrrrr​

Answers

The answer is no (all you do it plug in the point that correspond with the x and y, in the equation

Drag the appropriate answer from the choices given into the box provided.
Allen bought 2 notebooks for $8.75 each and one
Textbook for $74.95. If the sales tax was 7%, the total
of Allen's purchase was
$83.70
$89.56
$92.45
$98.92

Answers

Answer is $83.70 if I’m wrong sorry

9/2 divided by 3/4
What the answer??

Answers

Answer:

6

Step-by-step explanation:

Answer:

6

Step-by-step explanation:

[tex]\frac{9}{2}[/tex]÷[tex]\frac{3}{4}[/tex]

Use the keep change flip method. Make this a multiplication equation by turning 3/4 into 4/3

[tex]\frac{9}{2}[/tex]×[tex]\frac{4}{3}[/tex]

Solve.

[tex]\frac{36}{6}[/tex]

Simplify

6

Trigonometric Ratios and Unit Circles.
See Image Below.

Answers

Answer:

irudiwhiwhs swsw is d

Step-by-step explanation:

8349240 is your aswr 213

Evaluate 3 to the 2nd power plus 7 times 2

Answers

Hey there!

3^2 + 7 • 2

3^2 = 3 • 3 = 9

9 + 7 • 2

7 • 2 = 14

9 + 14 = 23

Answer: 23 ☑️

Good luck on your assignment and enjoy your day!

~Amphitrite1040:)

Answer:

my

Step-by-step explanation:


Jose bought a new car 2 years ago for $18,000. The value of his car decreased exponentially by 17% and is now
valued at about $12,400.
Solve Part A please

Answers

Answer: D

Step-by-step explanation: On the first part, if it decreases by 17% each year, that means its value is 83% of what it was. You forgot to say that the car was bought 2 years ago.

Thus, the answer is D

For the second, just use the same logic to get 18000*0.75^4

4/5 + 6/10. Im sorry im just to lazy-

Answers

Answer:

1 2/5

Step-by-step explanation:

Find the LCM for each pair of numbers. 2, 5 8, 10

Answers

The LCM of 2,5,8,10 is 40

the diameter of the handle of a softball bat is 1 3/4 inches. whats is the length in inches of the diameter of 8 of these bat handles?

a. 6in
b. 8 3/4 in
c. 9 3/4 in
d. 14 in

Answers

The answer to the equation Is D.

Answer:

d. 14 in

Step-by-step explanation:

Which of the following values of x makes the functions equal?

y=-1x+4
y=3x

Answers

the answer is
x=1
because 3 times 1 is 3
and -1 times 1 is -1 plus 4 is 3

What equation models the data in the table if d = number of days and c = cost?

Answers

Answer: pick the fourth answer
Explanation: because I said so

What is the slope of line a?

-1/3 3 -3 1/3

Answers

I do believe it’s -1/3
If I’m correct mark me brainliest pls
Answer: 1/3

Explanation: The slope is the rise over run, to find the slope you have to count the rise which is the numerator of the slope in this case it is 1 and the run is the denominator in this case it is 3. The reason the slope is positive is because the line is going up.

Hope this helps

Question 1 (1 point)
What is the value of x?
3x
3x +7
4
5x-8
o
52
7.
Ob
Oc
ما انه | با
Od
52

Answers

Answer:

x = 34

Step-by-step explanation:

nice

hi can anyone tell me the answer

Answers

Answer:

Attached a pic!!

Hope it helps!!!!

A TV has a listed price of $ 796-99 before tax. If the sales tax rate is 6.75% find the total cost of the TV with sales tax included
Round your answer to the nearest cent, as necessary

Answers

Answer:

$850.79

Step-by-step explanation:

Assuming "$ 796-99" meant $796.99

796.99 increase 6.75% =

796.99 × (1 + 6.75%) = 796.99 × (1 + 0.0675) = 850.786825

Jenny has some flowers in a bucket. She picks a flower at
random. Without putting the first flower back, she picks second
flowers at random.
Are these two events dependent or independent

Answers

The events are independent because it doesn’t matter if you take a flower out the next flower you pick will not matter as it’s still a flower and it’s not talking about colour

Multiply. Write your answer as a fraction or as a whole or mixed number.

2
1
3
×
2
1
2
×
1
4
=

Answers

623/184 as a fraction, but the WHOLE answer I got was 623184, would they like the answer in simpler terms? Because then 623/184 simplify to the lowest term is 79/23.

The answer of expression is 632184, it in fraction is 1264368/2.

What is Multiplication?

The adding of groups is called as Multiplication. When we multiply, the number of things in the group increases.

The combination of numbers, variables and operators is known as Expression

In the given expression multiplication or product is the operator.

213×212×14

When we multiply we get 632184.

Now we have to write 632184 in fractional form.

For this let us multiply numerator and denominator by 2.

So we get 1264368/2

and this can also we can write in mixed number.

We can write this value in fraction as 1264368/2

and we can also write in mixed number 4 632164/5.

Hence the answer as fraction is 1264368/2.

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Marcus paid for 5 pairs of rare Jordan's to be delivered. Each pair cost $143.95. Marcus paid $74.25 for delivery. What is the total amount Marcus paid?

Answers

Answer:

$794.10

Step-by-step explanation:

Marcus paid for 5 pairs of rare Jordan's to be delivered. Each pair cost $143.95. Marcus paid $74.25 for delivery. What is the total amount Marcus paid?

The total amount Marcus paid is calculated as

A = $143.95 × p + $74.35

Where p = Number of pairs of rae Jordans delivered = 5

Hence,

A = $143.95 × 5 + $74.35

A = $719.75 + $74.35

A = $794.10

Therefore, the total amount Marcus paid is $794.10

Determine whether the expression is a polynomial. If it is a polynomial, find the degree
and determine whether it is a monomial, binomial, or trinomial.
3y^2 – 2

Answers

Answer:

This expression is a polynomial. The largest exponent is 2, therefore, it is in the quadratic degree. It is a binomial because it has two parts: 3y² and -2.

what are the y-intercepts to graph the equation-4x - 3y = 36

Answers

Answer:

Y-Int = -12

Step-by-step explanation:

First, I would change the equation to slope intercept form:

-3y = 36 + 4x

3y = -36 - 4x

y = -12-4/3x

y = -4/3x - 12

-12 is the y-intercepts to graph the equation-4x - 3y = 36

What is slope intercept form of line?

The slope intercept form of a line is y=mx+b, where m is slope and b is the y intercept.

The given equation is -4x-3y=36

Now let us convert the given equation to slope intercept form y=mx+b

where m is the slope and b is the y intercept

Isolate the term y

-3y=36+4x

Divide both sides by 3

-y=36/3+4/3x

Multiply both sides by -

y=-12-4/3x

y=-4/3x-12

Slope is -4/3 and y intercept is -12

Hence, -12 is the y-intercepts to graph the equation-4x - 3y = 36

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i will mark you as brainly plzzzz help
A shirt is sold for Rs 285, there is a loss of 5%. At what price should the shirt be sold so as to have a profit of 15%?

Answers

Answer:

345 !

Step-by-step explanation:

SP = 285

loss = 5 %

CP= ( SP * 100 ) / ( 100 -  percentage loss)

CP= 28500 / 95 = 300

~~~~~~~~~~~~~~```

CP= 300

profit = 15%

SP = [(100 +  Profit %) / 100]*CP.

SP= 100 + 15 / 100 x 300

  =  115 / 100 x 300

 = 345

I hope im right!!!

(1a) Do 4x and 15 + x have the same value when x is 5? How do you know?

Answers

Answer:

Yes, both have the same value ( 20) when x = 5.

Step-by-step explanation:

We have two functions:

y = 15 + x

y = 4*x

We want to see if these functions have the same value when x = 5.

Then we just need to replace x by 5 in both equations, and see if the values of y are the same

first function:

y = 15 + 5 = 20

second function:

y = 4*5 = 20

So yes, both functions are equal to 20 when x = 5.

Answer:

Yes.

Step-by-step explanation:

4(5)=20

15+5=20

Give the domain and range of each relation

Answers

Domain is -2 and 4 range is 4 and 2

8. Which of the following elements would have the greatest ionization energy? Magnesium (Mg) Phosphorus (P) Argon (Ar) Sodium (Na)​

Answers

Answer:

I attached the photo hoped it helped

Step-by-step explanation:

Please help me on this!!!! ​

Answers

Answer:

670

Step-by-step explanation:

umm i used a calculator

Simple math questions pls help me out

Answers

Answer:

True, True, False, True, False for part 1

Step-by-step explanation:

Make me brainliest

Answer:true,true,false,true part one

Step-by-step explanation:

A high-speed elevator can rise 480 feet in 3 seconds. Which expression represents the rate, in feet per minute, of the elevator?

Answers

1 minute = 60 seconds

60 seconds/ 3 seconds = 20

480 feet x 20 = 9,600 feet

The elevator travels 9,600 feet per minute.

Answer:

160 feet per minute

Step-by-step explanation: i am 100% sure

PLSS HELP the length of a rectangle is 3 meters greater than 2 times the width the perimeter of a rectangle is 30 m what is the length of the rectangle​

Answers

Answer:

Width: 4 meters. Length: 11 meters

Step-by-step explanation:

If you do it correctly, the length should be 3 more greater than 4*2. 4*2= 8 +3= 11. Your perimeter= 30 meters. 11+11 accounting for both long sides of the rectangle= 22. Accounting for both sides of the width, so 4*2=8 + our 22= 30 meters. Yw.

The length of the rectangle​ width 4 meters and length 11 meters.

If you do it correctly,

The length should be 3 more greater than

What is the perimeter of a rectangle?

P=2(l+w)

L= Length

W = Width

4*2. 4*2= 8 +3= 11.

Your perimeter= 30 meters.

11+11 accounting for both long sides of the rectangle= 22.

Accounting for both sides of the width,

So 4*2=8 + our 22= 30 meters.

Therefore we get the length of a rectangle is  11 meters.

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So we're working on ratios and proportions in my math class. I feel attacked because my teacher specifically called me out and said- "Nya, you can do this, a little math won't hurt." So now I need help. :')

6) A pizza cost 12.00. If the sales tax is 7%, what is the final price of the pizza?

A. 12.07
B. 12.70
C. 12.84
D. 19.00

Answers

A pizza cost 12.00. If the sales tax is 7%, what is the final price of the pizza?

$12.84 or C

Have a great day! :)

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