3x {+ 2y = 23
x {– 2y = 8

Answers

Answer 1

Answer:

([tex]\frac{31}{4} , \frac{-1}{8}[/tex])

Step-by-step explanation:

use substitution:

3x+2y=23

x=2y+8

plug in 2y+8 for x

3(2y+8)+2y=23

distribute:

6y+24+2y=23

combine like terms:

8y+24=23

solve the equation:

y=-1/8

substitute -1/8 for y:

x=2(-1/8)+8

solve the equation:

x=31/4


Related Questions

I need help with this please​

Answers

Answer:

25. y=2x+1

26. $13

Step-by-step explanation:

25. 2x is the cost each day or the x, and the 1 is the initial fee, I found this because it said one day costs $3 and if I know that one days fee is $2 then I know that the y intercept or the price it starts at also known as a fee is $1. This is also backed up in the 4 day statement saying that 4 days is 9 dollars. I can do 9-1 to take away the fee and 8/2=4 so it is correct.

26. Since I already have the equation I can just plug in the vales and solve. y=2x+1, x=2 or the daily cost so 12+ (the fee) 12+1=13 so $13.

good luck, and have a great day.    :)

For 25 the answer would be y = 2x +

do you guys support animal testing? (putting drug into animals to see how it affects them)

Answers

Answer:

oh heck Nah!

Step-by-step explanation:

HELP! I NEED THE TWO EQUATIONS AND THE COST OF ONE PACKAGE OF BROWNIES AND ONE PACKAGE OF CUPCAKES
Franco went to a bakery to buy desserts. A package of brownies costs $0.75 more than a package of cupcakes. Franco bought 2 packages of cupcakes and 4 packages of brownies for $24. Write a system of equations and solve it to find the price of one package of brownies and one package of cupcakes.
I WILL MARK BRANLIEST

Answers

Answer:

Brownie package = 4.25

cupcake package = 3.50

Explanation

4.25 x 4 + 3.50 x 2 = 24

PLZ MARK BRAINLIEST IF HELPED

Brittany has a hoop. She wants to put tape around the edge of the hoop.
How long does the tape have to be to cover the hoop completely?

Answers

Answer: 9.42 feet

Step-by-step explanation:

circumference=diameter times pi

⬇️

c=3 * 3.14 =9.42

Answer: 9.42 feet

Step-by-step explanation: :p

please help !! I need the new equation, the vertex, the zeros, the y-intercept, and the maximum or minimum value

Answers

Answer:

1.py. zeroes

Step-by-step explanation:

A flute case is shaped like a rectangular prism. The case is 5 inches tall, 3 inches wide, and has a volume of 255 cubic inches. What is th elength of the flute case?

Answers

Answer:

The length of the case is 17 inches.

Step-by-step explanation:

A flute case is shaped like a rectangular prism with dimensions:

height = 5 inches;

width = 3 inches;

length = x inches.

The volume of the case is 255 cubic inches.

Use formula for the volume of the rectangular prism:

Thus,

The length of the case is 17 inches.

Estimate the perimeter of the figure to the nearest whole number.


perimeter: about ___ units

Answers

You forgot to include a picture!

please help me i need to get this done quick

Answers

Answer:

It's 2

Step-by-step explanation:

I don't know what to write

It’s the sixth option. Number 2

Maria drinks 2 1/2 pints of milk a day. How much is this in cups?
Write your answer as a whole number or a mixed number in simplest form.

Answers

Answer:

5 cups

Step-by-step explanation:

Answer:

5 cups

Step-by-step explanation:

1 pint = 2 cups

2 1/2 pint = 5 cups

is number 4 right? please explain how you do these types of problems

Answers

Answer:

No

Step-by-step explanation:

I haven't learned this but my brother says its incorrect, he is in Highschool, though he doesn't use Brainly.

No it isn’t right ,
Try again and maybe you’ll get it

Joni earns $300 per week. If she gets a 25% raise, how much more money will she earn each week?

Answers

Answer:

$375 ($75 more dollars)

Step-by-step explanation:

25% of 300 is 75, so, 300+75 is 375.

Answer:

[tex]\huge\boxed{$75}[/tex]$75

Step-by-step explanation:

Joni currently earns $300 per week (given)

To find how much more she will earn each week, write an expression adding the original pay and the raise amount.

$300 + 25%

Find 25 as a decimal for multiplication

25%  = 25/100 = 0.25

Write an expression to represent the scenario

Expression example 1:

$300 + 0.25(300)

This expression adds the original pay and the new raise together.

Expression example 2:

$300 (1.25)

This expression already takes the new pay into account by finding 125% of the original pay.

Simplify both expressions

Expression 1:

$300 + 0.25(300)

$300 + $75

$375

Expression 2:

$300 (1.25)

$375

Both expressions represent the same scenario and therefore come out to the same result. Now that we know how much Joni made after the raise, we need to find how much more money she will earn in a week with the following equation.

New amount - original amount = amount increase

Substitute known values into the equation

$375 - $300

Simplify

$75

Joni will earn $75 more each week.

Let me know if you have any questions!

Guys please help me and thank you

Answers

Answer:

c

Step-by-step explanation:

this table shows a table of the amount collected for boxes sold. Choose all amounts that could be added to this table.​

Answers

Answer:

$90, $135, $270

Step-by-step explanation:

E) 90
B) 135
D) 270


Multiply each number in the table by 4.50 x 10. Hope this helps!!

Im trying to do IXL and I dont understand the way my teacher teaches (ironic right?)
Can you please help?
the points (z,0) and (4,6) fall on a line with a slope of 6. What is the value of z?
If its not right im gonna report you

Answers

Answer:

z = 3

Step-by-step explanation:

First we want to find out how they found the slope of the line. To find the slope of the line, we use the slope formula: (y₂ - y₁) / (x₂ - x₁)

Plug in these values:

(6 - 0)/ (4 - z)

Simplify the parentheses.

= (6) / (4 - z)

Simplify the fraction.

= 6/(4 - z)

it is given that 6 is your slope. So let's add 6 to the left side of the equal sign.

6 = 6 / (4 - z)

To solve for z, we need to multiply both sides by (4 - z)

(4 - z)6 = 6

Now, divide both sides by 6 to isolate the expression of (4 - z)

4 - z = 1

Add z to both sides so it becomes positive.

4 = z + 1

Subtract 1 from both sides to isolate z.

3 = z

This is your answer.

Let's check it by plugging it back into the slope formula.

(6 - 0)/ (4 - z)

(6 - 0)/ (4 - 3)

= 6/1

= 6

Your answer is correct.

Hope this helps!

y’all i need help lol photo attached with the problem

Answers

Answer:

the answers is A i think

Step-by-step explanation:

Two angles are complementary. If one of the angles measures 57 degrees, how much does the other angle measure?

Answers

The answer is 33. Remember all complimentary angles equal 90 degrees so subtract 90 from 57 and the other angle is 33

What is the volume of the prism????????////

Answers

Answer:

6[tex](Feet)^{3}[/tex]

Step-by-step explanation:

2×2×[tex]\frac{3}{2}[/tex]

=6[tex](Feet)^{3}[/tex]

P.S. My twin sister's gonna have the same answer, her user is eternalvanimelda27

Without solving, identify whether this equation has a solution that is positive,negative, or zero:3x-5=-3
And please solve the equation
thanks

Answers

Answer:

I'm having problems with that too

Step-by-step explanation:

8. In the figure, lines a and bare parallel.
Select all the statements that are true.
b
1/2
(x-15)°/4
6/5
753
m21 = m25
mz3 = M24
m21 + m24 = 180°
m26 = 75°
m22 + m25 = 180°

Answers

The last one is a true statement

All the correct statements that are true,

⇒ m ∠1 = m ∠ 5

⇒ m ∠2 + m ∠5 = 180°

⇒ m ∠6 = 75°

What is mean by Angle?

An angle is a combination of two rays (half-lines) with a common endpoint. The latter is known as the vertex of the angle and the rays as the sides, sometimes as the legs and sometimes the arms of the angle.

Given that;

In the figure, lines a and b are parallel.

Now, By definition of alternate and corresponding angles, we get;

⇒ m ∠1 = m ∠ 5

⇒ m ∠6 = 75°

And, By definition of linear pair of parallel lines,

⇒ m ∠2 + m ∠5 = 180°

Thus, All the correct statements that are true,

⇒ m ∠1 = m ∠ 5

⇒ m ∠2 + m ∠5 = 180°

⇒ m ∠6 = 75°

Learn more about the angle visit:;

https://brainly.com/question/25716982

#SPJ7

Write and solve an equation that can be used to find x, in the figure below:

Answers

Answer: x=40

Step-by-step explanation:

so you would add the two angles you already know.

30+63=93

The sum of the angles of a triangle is always 180°. Knowing this, you can do

180-93=87

so you know the third angle is 87°

plug this into the equation: 2x+7

2x+7=87

subtract both sides by 7

2x=80

divide by two

x=40

The correct answer is X=40 because

1. Add the 2 angles you already know.

30 + 63 = 93

2. The sum of all angles in a triangle is always 180°

180 - 93 = 87

3. third angle is 87°

2x + 7 = 87

4. Subtract BOTH sides by 7

2x = 80

5. Divide by 2

X = 40

Hope this helped!!!❤️

Louis wants to carpet the rectangular floor of his basement. The basement has an area of 507 square feet. The width of the basement is 1/3 its length.

What is the length of Louis's basement?

plz help i stayed all night thinking about this but still it doesn't click in my brain

Answers

Divide 507 square feet by the width of the basement
507 ÷
1
3
=
1521
Calculation steps:

507 ÷
1
3
= 507 ÷
1
3
=
507
1
×
3
1
=
507 × 3
1 × 1
= 1521

PLEASE HELP! TEN POINTS AND BRAINLIEST TO WHOEVER GETS IT RIGHT!


Which statements apply to the expression (3/5)3 ( 3/5 to the third power) check all that apply.

The base is 3/5

The base is three

The exponent is three

The expanded form is 3/5×3/5×3/5

Expanded expanded form is 3×3×3/5

3/5 to the third power equals 9/15

3/5 to the third power equals 27/125

Answers

Answer:

A,C,D and F

Step-by-step explanation:

Answer:

The base is 3/5, the exponent is three, the expanded form is 3/5 * 3/5 * 3/5, 3/5 to the third power is 27/125.

Step-by-step explanation:

I hope this helps! May I please have brainliest? :)

please help me I only have to do 5 more questions

Answers

Answer:

A

Step-by-step explanatio

Answer:

A and C

Step-by-step explanation:

5/7 x 610 = 435.7142857 or 435.7

3/2 x 610 = 915

2/3 x 610 = 406.6666667 or 406.7

5/4 x 610 = 762.5

A and C are correct because they are the only ones with an answer less than 610.

Find the surface area of the prism.

Answers

I believe it’s 12.5 I’m sorry if I’m wrong

Please help I will be posting more questions after this one!!!!! HELP MEEEEE

Answers

Answer:

B

Step-by-step explanation:

Answer:

I think it's B.

Hope this helps!

When a number is decreased by 54%, the result is 28. What is the original number to the nearest tenth?

Answers

Answer:

x=60.9

Step-by-step explanation:

Let x represent the number

x - 54%x = 28

x - 0.54x = 28

0.46x = 28

Divide both sides by 0.46

x = 28/0.46

x = 60.86

x = 60.9

60.9 is the answer I hope this helps u

Please help. You will get a noice amount of points.

Answers

Answer:

tacos = 2.50 dollars

burritos = 3.50 dollars

Step-by-step explanation:

y = burritos

x = tacos

2y + 5x = 19.50

5y + 2x = 22.50

tacos = 2.50 dollars

burritos = 3.50 dollars

Confused ? Explain it more please

Pls explain to me how to find the value of x.

Answers

Here are the pictures of the steps I took when solving it as well as the answer to what X is

For Each coin, state its worth as a percentage of $1?

Answers

Answer:5. is 500%

Step-by-step explanation:

4. Is 250%, and 5. Is 500%

Explanation:
For #4, the coin is equal to $2 1/2, or $2.50. Since the question is asking the worth of each coin as a percentage of $1, $2.50 will be a percentage greater than 100%. $2.50 is 2.5x $1, so if $1 is seen as 100% in this problem, we can do 100 x 2.5. This is how you get the answer of 250%

You use the same method for question 5, except $5 is 5x $1, so we can do 100 x 5 to get 500%

5. Which would be a good first step to use to solve this system?



1st equation: y = 6x + 4

2nd equation: 5x + 2y = 12



A. Multiply the first equation by 2, and add the result to the second equation.

B. Substitute 5x + 12 for for y in first equation.

C. Substitute 6x + 4 for x in the second equation.

D. Substitute 6x + 4 for y in the second equation.

Answers

Answer:

d. substitute 6x +4 for y in the second equation

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