4x + 3y = -2
8x – 2y = 12

Answers

Answer 1
x = 1
y = - 2

Explanation

Related Questions

{172-[125+(30÷2)×]}+5(8+3)

Answers

Answer:

is -15x+102 I belive. hope I helped!!! :D

please help me please will give brainliest to anyone who is good

show your reasons ​

Answers

Answer:

Option D

Step-by-step explanation:

She is selling tickets for $10 each, and if 1,007 people attended, that would be: $10,070 in proceeds. So, you then subtract that from the balance at the bank: -$3,200.

-$3,200 + $10,070 = $6,870 balance.

I need help solving the equal method

Answers

Answer:

(-2, -4)

Step-by-step explanation:

Since both equations are equal to y, you can set them equal to each other:

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

Next, solve for x:

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

Finally, substitute the solution for x in one of the equations (or both) to find y:

[tex]y=\frac{3}{2}(-2)-1\\y=-3-1\\y=-4[/tex]

[tex]y=\frac{1}{2}(-2)-3\\y=-1-3\\y=-4[/tex]

Therefore, the solution to the system of equations is (-2, -4).

Pleaseeeee help me
ingore the answer i put
brainliest if right

Answers

Answer:

i think its -8  

if its right yaaaa but if its worng sorry very sorry:(

What is the value of the expression 2 + x to the second power. 5
when x = 3? =​

Answers

Answer:5x5 =20

Step-by-step explanation:

I think that 2+3=5

5 to the second power = 5 over 2

Which is 5x5

Which is equal to 20

-7x - 12 = - 7х + 3(-4 - x)

Answers

Answer:

[tex]x=0[/tex]

Step-by-step explanation:

[tex]-7x - 12 = - 7x + 3(-4 - x)[/tex]

Open up the parentheses

[tex]-7x - 12 = - 7x -12-3x[/tex]

-7x cancels out on both sides

[tex]-12 =-12-3x[/tex]

-12 cancels out on both sides

[tex]0=-3x\\x=0[/tex]

I hope this helps!

Translate the sentence into an inequality.
The product of x and 3 is greater than 21

Answers

Answer:

3x>21

The product of 3 and x is 3x

greater than 21 is >21

A transaction is positive if there is a sale and negative when there is a return. Each time a customer uses credit card for a transaction, the credit company charges Isabel. The credit company charges 1.5% of each sale and a fee of 0.5 % for returns

Answers

Full question:

A transaction is positive if there is a sale and negative when there is a return. Each time a customer uses credit card for a transaction, the credit company charges Isabel. The credit company charges 1.5% of each sale and a fee of 0.5 % for returns

Let x represent the amount of a transaction and let f(x) represent the amount Isabel is charged for the transaction. Write a function that expresses f(x)

Answer:

f(x)= 0.015(x)

f(x)= 0.005(x)

Explanation:

If Isabel makes a sale, she has a positive transaction and therefore is charged 1.5%(which is 0.015) by the credit company for the transaction. If the product is returned, it is a negative transaction and the credit company charges 0.5%(which is 0.005) for the transaction. The functions for positive and negative transactions would be different as indicated in the answer since transactions( given by x) are different- positive and negative.

Solve the system of equations. x = 4y + 3 4x - 16y= 12​

Answers

Answer:

x=4y+3

Step-by-step explanation:

I don't know if this is right or not.  Please tell me if it is.

Write the product in its simplest form

Answers

Answer:

9u^8v^3

Step-by-step explanation:

simplest form is 9u^5v^6

What is the value of the expression below
when a = 2 and b = 4?
За +ь


Please I need help

Answers

Answer:

a=2,b=4. (3a+b)=3*2+4=10.

A certain bacteria culture grows at a rate if 18% everday. There are currently 420 bacteria. How many bacteria will there be on day day 8

Answers

Answer:

1579

Step-by-step explanation:

There is a particular formula you must use and it leads to this 420(1 + 0.18)^8=1579

Linda took her dog for a walk. She left at 3:52 P.M. and walked around the neighborhood and
through the park. She got home at 4:16 P.M. How long did Linda walk her dog?

Answers

She would have been on a walk for 24 minutes

Is there a proportional relationship between the number of pounds of apples and their cost? Is there a proportional relationship between the number of toppings on a pizza and its cost? Explain how you know.

Answers

The question is incomplete, the complete question is;

Based on the information in the table, is the cost of the apples proportional to the weight of apples?

Pound of apples:

2

3

4

5

Cost of apples:

$3.76

$5.64

$7.52

$9.40

2. Based on the information in the table, is the cost of the pizza proportional to the number of toppings?

Number of toppings:

2

3

4

5

Cost of pizza:

$11.99

$13.49

$14.99

$16.49

Answer:

See explanation

Step-by-step explanation:

Based on the information provided, there is a proportional relationship between the cost of the apples and the weight of the apples as well as between the number of toppings and the cost of the pizza.

We know that there is a proportional relationship when there is a linear increase  or decrease in the two quantities in the relationship. This increase or decrease is usually by a constant value.

In the relationship between the weight of apples and the cost of apples, the cost of apples increases steadily by $1.88 which shows a proportional relationship.

Also, in the relationship between the number of toppings and the cost of pizza, the cost of pizza increases by $1.5 which shows a proportional relationship between the two.

On every fourth visit to the hair salon, you receive a discount of $5. On every tenth visit, you receive a free hair product. After how many visits do you receive the discount and a free product at the same time?

Answers

To work this out you will need to find the lowest common factor of 4 and 10 since that is when you get there product and discount, therefore the lcm is 20, and therefore that is your answer (20)!

The number of visits when you would receive a discount and a free product at the same time is on the 20th visit.

What is a multiple?

A multiple of a number is the product of an integer and that number. For example a multiple of 10 is 120. This is because the product of 10 and 12 is 120.

When would you receive both a discount and a free product?

In order to determine the number of visit, the multiple of 4 and 10 has to be determined. The first common multiple is required answer

The first ten multiples of 4 = 4, 8, 12, 16, 20, 24, 28, 32, 36, 40

The first ten multiples of 10 = 10, 20, 30, 40, 50, 60, 70, 80, 90, 100

To learn more about multiples, please check: https://brainly.com/question/26030133

Thanks if you help me

Answers

Answer:

Choice A

Step-by-step explanation:

This is just order of operations and spreading out your number outside of the parentheses into the numbers inside of it

a) 7(4x+1)-> 7(4x)+7(1)-> 28x+7  = 28x+7

b) 6(x+2)-> 6(x) +6(2)-> 6x+12 ≠ 8x

c) 4(2x+4)-> 4(2x)+4(4)-> 8x+16 ≠ 8x+10

d) 4(2x+11)-> 4(2x)+4(11)-> 8x+44 ≠ 8x-15

                                          Hope this helped :)

y/4= -19
what is y?
Find what y is

Answers

Answer:

y= -76

Step-by-step explanation:

y/4=-19

*4  *4

The answer would be y=-76
Because
1/4y=-19

Hope this helps

Have a great day/night

Evan can jog 1 1/3 miles in 1/4 hour. Part a find his average speed in miles per hour

Part B. Calculate how many miles he can jog in 3 hours

Answers

Answer: ↓↓↓

Step-by-step explanation:

Part A

1/4 × 4 = 1

1 1/3 × 4 = 5 [tex]\frac{1}{3}[/tex]

He jogs 5 [tex]\frac{1}{3}[/tex] per hour.

Part B

 1 hr - 5 [tex]\frac{1}{3}[/tex] miles

3 hrs - 5 [tex]\frac{1}{3}[/tex] × 3

5 [tex]\frac{1}{3}[/tex] × 3 = 16

He jogs 16 miles in 3 hours

A coffee shop serves three times as many cups of regular coffee as decaffeinated coffee. If the shop serves d cups of decaffeinated coffee, write an expression for the number of cups of regular coffee it sells.

Answers

Answer:

Number of cups of regular coffee the shop sells = 3d

Step-by-step explanation:

Let

d = cups of decaffeinated coffee

Three times as many cups of regular coffee as decaffeinated coffee.

Number of cups of regular coffee the shop sells = 3d

What is the number of square units in the area of a triangle whose sides measure 5,5 and 6 units

Answers

Answer:

Meters, miles, feet, centimeters

Step-by-step explanation:

A man buys a backpack from a sporting goods store. The backpack costs $20. Find the total cost of the backpack if he lives in a county with a 7.5% sales tax.​

Answers

Answer: $21 and 50 cents

Step-by-step explanation:

I really need help on this question. Thank you ! I’ll mark brainless correct answer.

Answers

Answer:

he gets $110 everytime he sells a copy

if he sells 0 copies, he will still have the $1,500 that's unaffected by the book

Step-by-step explanation:

I hope this helps :)

solve the quadratic equation
2(6x+7)(7x-4)=0

Answers

Step-by-step explanation:

=2(6×+7)(7×-4)

=2(+42)(-32)

=2×+42×-32

=84×-32

=-2688

Here are the weekly allowances for 10 Grade 7 students:

$9, $11, $13, $15, $20, $10, $12, $15, $10, $15

What is the mean allowance?

Answers

i can’t do it right now but add up all the numbers and divide by 10

Mean allowance of the given students is equals to $13.

What is mean?

" Mean is defined as the ratio of the sum of all the given number to the  total number of numbers. It is also known as average."

Formula used

Mean = [tex]\frac{Sum of all the given numbers}{Total number of numbers}[/tex]

According to the question,

Number of students = 10

Weekly allowances of each student

= $9, $11, $13, $15, $20, $10, $12, $15, $10, $15

Substitute the value in the formula of mean we get,

mean = [tex]\frac{9+11+12+13+20+2(10)+3(15)}{10}[/tex]

         [tex]= \frac{130}{10}\\ \\= 13 dollars[/tex]

Hence, mean allowance of the given students is equals to $13.

Learn more about mean here

https://brainly.com/question/15662511

#SPJ2

Last year, Charlie opened an investment account with $7200. At the end of the year, the amount in the account had decreased by 7%.
(2) Fill in the blank to write the year-end amount in terms of the original amount. Write
your answer as a decimal.
Year-end amount = 1 x Original amount
(0) Use your answer in part (a) to determine the year-end amount in Charlie's account.
Year-end amount: $

Answers

Answer:

649 dollars for charly poop

I need help with this

Answers

You divide to get the answer

The price of a can of green beans is raised from $0.50 to $0.60. What is the percent increase in the price of the can of green beans?

Answers

Answer:

20%

Step-by-step explanation:

Here, we want to calculate the percentage increase in the price of a can of green beans

Mathematically, we use the formula below;

(new price - old price)/old price * 100%

From the question;

old price = $0.50

new price = $0.60

So we have;

(0.6-0.5)/0.5 * 100%

= 0.1/0.5 * 100%

= 20%

Please help!!!



A boat is pulled in by means of a winch located on a dock 10 feet above the deck of the boat. Let the angle of elevation ø = 18 degrees. Find the length s of the rope.

Answers

9514 1404 393

Answer:

  32.4 feet

Step-by-step explanation:

The applicable relationship between angle and triangle lengths is ...

  Sin = Opposite/Hypotenuse

The dock height is the side of the triangle opposite the given angle. The desired length is the hypotenuse of the triangle, so we have ...

  sin(18°) = (10 ft)/s

  s = (10 ft)/sin(18°) = (10/0.30902) ft

  s ≈ 32.4 ft

The length of the rope is about 32.4 feet.

Help me please pass math

Answers

Answer:

Step-by-step explanation:

This question is a bit sloppy. In higher math courses it would not be permitted. I'll give you the general rule that applies to this question -- sort of.

If you have a triangle that hast angles of 100 50 and 30

The largest side will be opposite the 100 degree angle.

The smallest side will be opposite the 30 degree angle.

So for the question, you are intended to say that CD > AB because CD is opposite a 43 degree angle and AB is opposite a 40 degree angle.

So the answer is Since 43 > 40 then CD>AB

A bakery sells 44 large boxes of muffins and 50 small boxes of muffins in one day. Each large box holds 20 muffins, and each small box holds 15 muffins. What is the total number of muffins sold on this day?

Answers

Answer: 1630 Muffins

Step-by-step explanation:

You multiply 44 x 20. (880)

Then you multiply 15 x 50 (750)

Then you add them together

880 + 750 = 1630 Muffins

Hope this helped :D

The total number of muffins sold on this day will be 1,630.

What is Algebra?

Algebra is the study of abstract symbols, while logic is the manipulation of all those ideas.

The acronym PEMDAS stands for Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This approach is used to answer the problem correctly and completely.

A bakery sells 44 large boxes of muffins and 50 small boxes of muffins in one day. Each large box holds 20 muffins, and each small box holds 15 muffins.

The total number of muffins sold on this day will be calculated as,

⇒ 44 x 20 + 50 x 15

⇒ 880 + 750

⇒ 1,630

The total number of muffins sold on this day will be 1,630.

More about the Algebra link is given below.

https://brainly.com/question/953809

#SJP5

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