Solve each equation for y 2x+3y=18 plus show work

Answers

Answer 1
2x + 3y = 18
3y = 18 -2x
y = (18/3) - (2/3)x
y = 6 - 2/3x
y =-2/3x + 6
Answer 2
2x + 3y = 18
2(0) + 3y = 18
3y = 18
3y / 3 = 18/3
y = 6


Related Questions

If a is a 3-digit integer and b is a 3-digit integer, is the units digit of the product of a and b greater than 5?

Answers

You'll have to multipliy  a and b to get c=5 then divide it by two

The following sequence is arithmetic. 18, 11, 4, -3, -10, -17….


True

False
I can't study this because keystones makes you take the quiz before giving instructions.

Answers

Hello,

It is true that the sequence is arithmetic. Its common difference, of subtracting 7 each time, is always going to subtract 7 from each number.

Hope this helps!

May

The statement "The following sequence is arithmetic. 18, 11, 4, -3, -10, -17 is True.

To determine if a sequence is arithmetic, one must check if there is a common difference between consecutive terms. The common difference (d) can be found by subtracting any term in the sequence from the term immediately following it.

Let's calculate the common difference for the given sequence:

- For the first two terms: (11 - 18 = -7)

- For the next two terms: (4 - 11 = -7)

- For the following two terms: (-3 - 4 = -7)

- And for the last two terms provided: (-10 - (-3) = -10 + 3 = -7)

 Since the difference between each pair of consecutive terms is constant and equal to \(-7\), this confirms that the sequence is indeed arithmetic. Therefore, the statement is True.

The _____ of a cone is the curved surface that connects the base of a cone to the apex of the cone.

Answers

lateral surface or side is the name of the curved surface.

The lateral surface of a cone is the curved surface that connects the base of a cone to the apex of the cone.

The lateral surface of a cone refers to the curved surface area that connects the base of the cone to its apex (the pointed top).

It forms the sloping sides of the cone.

In a cone shape, the base is a circle, and the lateral surface is the part that wraps around the sides to meet at the apex.

This surface does not include the base or the tip of the cone. It is only the curved part that connects the two.

The lateral surface area of a cone can be calculated using the formula A = πrl, where A represents the lateral surface area, r is the radius of the base of the cone, and l is the slant height, which is the distance from the apex to any point on the edge of the base.

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if the discriminant of an equation is zero, which of the following is true of the equation?
a. it has one real solution
b. it has two complex solutions
c. it has two real solutions
d. it has one complex solution

Answers

The answer would be A. one real solution
Answer:

If the discriminant of an equation is zero, then the correct statement amongst given statement is:

      a.    It has one real solution

Step-by-step explanation:

We have three cases of discriminant--

If the discriminant of the equation is strictly greater than zero then the equation has two real solutions.If the discriminant is equal to zero then it has one real solution.and if the discriminant is strictly less than zero then the equation has 0 real solutions i.e. both the solutions of the equation are complex.

 

At the fast food restaurant, four cheeseburgers and five small fries have a total of 2,310 calories. Three cheeseburgers and two small fries have a total of 1,330 calories. How many calories does each item contain? Create two equations to model this situation using X and Y for your variables. Use a comma to separate your equations.

Answers

Let x = calories in a cheeseburger
Let y =  calories in an order of small fries

Four cheeseburgers and five small fries have 2,310 calories. Therefore
4x + 5y = 2310       (1)

Three cheeseburgers and two small fries have 1,330 calories. Therefore
3x + 2y = 1330        (2)

Equations (1) and (2) model the given situation.

To solve, multiply (1) by 2, and multiply (2) by 5 to obtain
  8x + 10y = 4620          (3)
15x + 10y = 6650          (4)

Subtract (3) from (4).
7x = 2030
x = 290
From (1), obtain
5y = 2310 - 4*290 = 1150
y = 230

Answer:
The two equations are
4x + 5y = 2310
3x + 2y = 1330

The solutions are x = 290, y = 230.

Final answer:

A cheeseburger contains 290 calories and a small fries contains 230 calories.

Explanation:

Let X be the number of calories in a cheeseburger, and Y be the number of calories in a small fries.

From the given information, we can create two equations:

4X + 5Y = 23103X + 2Y = 1330

To solve this system of equations, we can use substitution or elimination. Let's use elimination:

Multiply equation 1 by 3 and equation 2 by 4 to eliminate the X term:12X + 15Y = 693012X + 8Y = 5320Subtract the second equation from the first equation:12X + 15Y - 12X - 8Y = 6930 - 53207Y = 1610Divide both sides by 7:Y = 230Substitute the value of Y into either equation and solve for X:3X + 2(230) = 13303X + 460 = 13303X = 870X = 290

Therefore, a cheeseburger contains 290 calories and a small fries contains 230 calories.

Dylan is 6 years younger than Briana. Briana's age can be represented by x. Write an expression representing Dylan's age.

Answers

x - 6

-------------------------------------------------------------------
x is Brina's age

-6 is how many years younger Dylan is

Answer:

x - 6

Step-by-step explanation:

usatestprep

k-12

If you start with an integer and , subtract -85 ,add -57 ,subtract 68, add -77,add 55 and subtract-73 the result is 0. Find the integer that you start with

Answers

Start with zero and do all the operations.

0 - (-85) + (-57) - 68 + (-77) + 55 - (-73) = 11

Since when you start with 0, you end up with 11, if you start with -11 you'll end up with 0.

Answer: -11.

Which two terms are often synonymous with or made possible with cidr?

Answers

Classless
VLSMYou let me know if im wrong dude

CIDR, or Classless Inter-Domain Routing, is tied to IP address aggregation and subnetting, which help in efficient IP address allocation and network management.

Classless Inter-Domain Routing, commonly known as CIDR, is a method for allocating IP addresses and routing Internet Protocol packets.

Two terms often associated with CIDR are IP address aggregation and subnetting. IP address aggregation involves the grouping of multiple networks into a single, larger network, represented as a CIDR block.

Subnetting refers to dividing a larger network into smaller, more manageable sub-networks or subnets. This technique can help reduce the number of routing table entries needed in a network, which improves routing efficiency and conserves the limited supply of IP addresses.

Can someone please help me with both of these! Thank youuuu!!! ❤️

Answers

The first question is 66 and second question is 11. I hope this helps love! :)

q(a+y)=67y+93 Solve for y

Answers

Qa + Qy = 67y + 93
Qy - 67y = 93 - Qa
y(Q - 67) = 93 - Qa
y =[tex] \frac{93-Qa}{Q-67} [/tex]
Answer:

The value of y is:

           [tex]y=\dfrac{93-qa}{q-67}[/tex]

Step-by-step explanation:

We are given a expression in terms of three unknowns q,a and y.

Now, we are asked to solve this expression for y.

i.e. we are asked to represent y in terms of other two unknowns.

We will first use the distributive property under multiplication in the left hand side of the equation.

i.e.

[tex]q\times a+q\times y=67y+93\\\\i.e.\\\\qa+qy=67y+93[/tex]

Now, we combine the terms of y at one side of the equation and the other terms to the other side.

i.e.

[tex]qy-67y=93-qa\\\\i.e.\\\\(q-67)y=93-qa\\\\i.e.\\\\y=\dfrac{93-qa}{q-67}[/tex]

The product of two positive even numbers is 168. What are the numbers? A) 12 and 14 B) 16 and 18 C) −12 and −14 D) −16 and −18

Answers

It's A 12 & 14.
12  x 14 = 168.
Well first of all its not c or d because they are not positive numbers. It would be A

jeunesse earned $725 dollars by working 5 days in a week. What is the average amount that she earned per day?

Answers

The average amount that Jeunesse earned per day is $145.
725/5

Which term describes a person's previous pattern of borrowing and repaying?

Answers

The term that describes a person's previous pattern of borrowing and repaying is a credit pattern. That will make the answer to be B.

The answer to the question would be b

If all marbles in a bag are red, and all red marbles weigh 3oz, then all 3oz marbles are red. true or false?

Answers

False because there are more colors of marbles that could be any other color but red

The answer is: "False"

hope this helps, Buddy

a blue print for a house has a scale of 1:35 in in a wall in the blue print is 3 inches what is the length in feet

Answers

The answer is 8.75 feet

The ratio is 1:35. Therefore if the blueprint shows 3 inches, we need to multiply it by 35 to get the actual wall. Thus 35 * 3 inches = 105 inches. Now divide 105 inches by 12 inches per foot. It is now 105 ÷ 12 = 8.75 feet. 

Express 5/14 as a decimal number rounded to the nearest thousandth.

0.357
2.8
0.3571
0.28

Answers

Rounded to the nearest thousandth, it's 0.357. So, the correct answer is: A) 0.357.

To express  5/14 as a decimal, divide 5 by 14 to get 0.357142857. Rounding to the nearest thousandth means considering the third digit after the decimal point. Since the fourth digit is 1, which is less than 5, it doesn't affect the rounding. Therefore, 5/14 as a decimal rounded to the nearest thousandth is 0.357. This approximation maintains three decimal places, with the third digit being 7.

[tex]\frac{5}{14}=0.357142857[/tex]

Complete Question:

Express 5/14 as a decimal number rounded to the nearest thousandth.

A) 0.357

B) 2.8

C) 0.3571

D) 0.28

Non-random sampling is less likely to result in a representative sample than random sampling. select one:
a. True
b. False

Answers

B. False if im wrong sorry hope this helped tho :p

What is the value of r? 5+r−2=9

Answers

Work backwards.
9 + 2 = 7
7 - 5 = 2
r = 2

The value of r in a solution of the expression 5 + r - 2 = 9 is,

⇒ r = -6

Given that,

A mathematical expression is,

⇒ 5 + r - 2 = 9

Now, simplify the expression by combining like terms as,

⇒ 5 + r - 2 = 9

⇒ 3 - r = 9

Add r on both sides,

⇒ 3 = 9 + r

Subtract 9 on both sides,

⇒ 3 - 9 = r

⇒ - 6 = r

Therefore, the solution of the expression is,

⇒ r = -6

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On scrap paper, determine if the triangle with the following vertices is a right triangle.

A(-3, 5), B(1, 4), and C(-1, 0).

in the box below, tell whether or not the triangle is a right triangle. Explain how you arrived at your answer.

Answers

Answer:

  not a right triangle

Step-by-step explanation:

The slope of AB is -1/4; the slope of BC is 2. These are not negative reciprocals of one another.

use mental math to solve 4576 + 2842

Answers

The answer is 7418.

Hope this helps
It’s 7418 I did the mental math and that’s what I came up with

In which area did the French find the most success?

Shipbuilding
Fur trade
Lumber industry
Agriculture

Answers

The answer is Fur trade

Alana is writing a coordinate proof to show that the diagonals of a rectangle are congruent. she starts by assigning coordinates to a rectangle as shown. then she uses the coordinates to write and simplify expressions for the lengths of the diagonals.

Answers

The solution for the problem is:

d(S,P) = √(0-0)^2 + √(b-0)^2
d(S,P) = √b^2
d(S,P) = b

so we know that, SP = b

d(P, Q) = √(a-0)^2 + √(b-b)^2
d(P, Q) = √a^2
d(P, Q) = a
so
PQ = a 

SQ = c^2 = a^2 + b^2
SQ = √(a^2 + b^2)

Therefore, the answer is √(a^2 + b^2).

Final answer:

Proof of the congruence of the diagonals of a rectangle involves the distance formula stemming from the Pythagorean theorem and can be shown using specific coordinates. Comparing areas of squares uses the squares of the side lengths which simplifies to ratios.

Explanation:

The lengths of the diagonals of a rectangle can be found using the distance formula, which is derived from the Pythagorean theorem. To prove the diagonals are congruent, coordinates are assigned to the vertices of the rectangle and the distance formula is applied to both diagonals. If the rectangle is placed with one corner at the origin and sides along the axes, then this process is further simplified as one can use the differences in x-coordinates and y-coordinates directly.

If we have a rectangle with vertices at coordinates (0,0), (a,0), (a,b), and (0,b), the diagonal lengths can be found by using the distance formula: the diagonal between (0,0) and (a,b) would have a length of √(a² + b²), and the diagonal between (a,0) and (0,b) would also have a length of √(a² + b²), proving that they are congruent. Additionally, when comparing areas using ratios, one simply needs to compare the squares of the lengths of respective sides, as the area of a square is the square of its side length.

7x-4y=3y-14 solve for y

Answers

7x-4y=3y-14
7x-1y=14
-1y=7
y=-7

List the steps to construct parallel lines using a compass and straightedge.
List the steps to construct parallel lines using a drawing program.
List the steps to construct perpendicular lines using a compass and straightedge. List the steps to construct perpendicular lines using a drawing program.

Answers

1.      To construct parallel lines, first, you must start with a line segment AB that well copies. Mark another point called C. Set the compass to the point A and adjust the compass to the width of the original line. Then without moving the compass, put it on point C and mark the end and label it D. Use a straightedge to connect the points and now you’ve copied a line segment.

2.      First, you click the line and make a line segment. Then make a separate point anywhere. Then you double-click perpendicular lines and click parallel lines. Click and drag the line segment onto the separate point.

3.      First, you start with a point on a line. Then you put your compass on the point and mark an arc on each side of the line and put points on them. Then you put the compass on one of the points and make an arc above the original point. Do the same for the other side. You should end up with 2 X’s on top and bottom of the original point. Then mark points on the Xs. Finally, use a straight edge to connect the two X’s which will make a bisecting line through the original.

4.      First, you make a line and click perpendicular lines and you will have a straight line cutting through the original.

Answer:

Step-by-step explanation:

Which are correct representations of the inequality 6x ≥ 3 + 4(2x – 1)? Check all that apply.

Answers

1st box and 2nd box
The simplified inequality is x is less than or equal to -1/2.
[tex]x \leq -1/2[/tex] = [tex]1 \geq 2[/tex]

6x ≥ 3 + 4(2x – 1)
=[tex]6x \geq 3+8x-4[/tex]
6x≥3+8x-4
-2x≥-1
   x≤1/2
a correct
b -2x≥-1
      x≤1/2 
      correct
c correct
d e incorrect
  a, b, c are correct.

How many combinations are there to make $2.50 using one dollar bills, quarters, and dimes?

Answers

Final answer:

To make $2.50 using one dollar bills, quarters, and dimes, there are 7 different combinations.

Explanation:

To make $2.50 using one dollar bills, quarters, and dimes, we can use the concept of combinations. Let's break it down:

Start with the number of one dollar bills:0 one dollar bills: This gives us 0 dollars.1 one dollar bill: This gives us 1 dollar. We need to make $1.50 more with quarters and dimes.2 one dollar bills: This gives us 2 dollars. We need to make $0.50 more with quarters and dimes.Now let's consider the quarters and dimes:0 quarters and 25 dimes: This gives us $2.50.1 quarter and 20 dimes: This gives us $2.50.2 quarters and 15 dimes: This gives us $2.50.3 quarters and 10 dimes: This gives us $2.50.4 quarters and 5 dimes: This gives us $2.50.

So, there are 7 different combinations to make $2.50 using one dollar bills, quarters, and dimes.

Write an inequality to model the situation. a number exceeds 9.

Answers

n > 9 would be the answer

Answer:

n ≥ 9

Step-by-step explanation:

in a tank that contains only golden platys, the probability of getting a female fish is 30%. If there are 18 female fishin the tank, how many total fish are in the tank?

Answers

The answer is 60 because, you multiply 18 and 100 to get 1,800 then once you have that you then divide the 1,800 with the 30 and you then get 60.
Final answer:

Using probability concept in mathematics, the total number of fish in the tank would be 60, this is solved by the equation

[tex]X = (18*100)/30[/tex]

Explanation:

The student's question involves the concept of probability in mathematics. Given that the probability of finding a female golden platy is 30% and there are 18 female golden platys, we can formulate an equation to find the total number of fish. Let's say the total number of fish in the tank is X. Accordingly, we can write 30/100 * X = 18. Solving this equation would give X = 18 / (30/100), which simplifies to

[tex]X = (18*100)/30 = 60[/tex]

golden platys in the tank.

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Help please . Thank you

Answers

The general form is ax²+bx+c=0,
so at least we know b has to be 0. None of the values match unless we multiply everything by 4. That leads to answer B, a=1, b=0 and c=20

which expression shows how 6x45 can be rewritten using the distributive property

Answers

i think it is (6x40) + (6x5) 
3 ( 2 + 15 ) Because 3 x 2 = 6, and 3 x 15 = 45
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