solve the system of equations y=x-4, y=-3x

Answers

Answer 1
Y=x-4
x=y+4
y=-3(y+4)
y=-3y-12
4y=-12
y=-3
x=1
Answer 2

To solve the given system of equations, we set y = x - 4 and y = -3x equal to each other to find x = 1 and subsequently y = -3, giving us the solution (1, -3). Other systems can be solved using methods such as elimination or substitution.

To solve the system of equations, let's start by setting up the equations provided:

1) y = x - 4

2) y = -3x

Since both equations equal y, we can set them equal to each other and solve for x:

x - 4 = -3x
4x = 4
x = 1

Now, we substitute x back into one of the original equations to find y:

y = 1 - 4
y = -3

The solution to the system of equations is (1, -3).

If we look at another set of equations mentioned in the question:

7x - 2y = 24
3x + 9y = 30

We can solve them using the method of elimination or substitution. For example, we can multiply the first equation by 3 and the second by 7, then subtract one from the other to eliminate one of the variables and solve for the other.


Related Questions

80 girls and boys have planned for a movie. They are in a ratio of 6 girls to 2 boys . How many girls are there?

Answers

Let g represent the amount of girls at the movie and b represent the amount of boys, and t represent the total amount of kids at the movie. t = g + b the equation the represents the situation, so 8 = 6 + 2 represents that if there is a total of 8 kids, there are 6 girls and 2 boys. Because the ratio is 6:2, the amount of girls to the total amount of kids is 6:8 (which is the same is 3/4) and the amount of boys to the total amount of kids is 2:8 (which is the same is 1/4). Therefore, the equation that represents the situation is t = 3/4t + 1/4t, meaning that g = 3/4t and b = 1/4t. If there is a total of 80 kids, replace t with 80 and solve for g (number of girls at the movie): 

g = 3/4t

g = 3/4(80)

g = 60

There are 60 girls at the movie.

Which statement correctly describes the relationship between the graph of f(x) and g(x)=f(x+2) ?



The graph of g(x) is the graph of ​f(x)​ translated 2 units left.

The graph of g(x) is the graph of ​f(x)​ translated 2 units up.

The graph of g(x) is the graph of ​f(x)​ translated 2 units down.

The graph of g(x) is the graph of ​f(x)​ translated 2 units right.

Answers

It would be the first answer, the graph if g(x) is the graph of f(x) translated 2 units left
This is because the +2 is in the parentheses with the x which makes it move left or right and because it’s positive you would do the opposite and more it left

we have that

[tex]f(x)\\g(x)=f(x+2)[/tex]

we know that

the rule of the translation of f(x) to g(x) is equal to

[tex](x,y)----> (x-2,y)[/tex]

that means

the graph of g(x) is the graph of f(x) translated [tex]2[/tex] units left

therefore

the answer is the option

the graph of g(x) is the graph of f(x) translated [tex]2[/tex] units left

8,543.191
The 1 in the tenths place is blank the value of the 1 in the thousands place.

Answers

inside the blank, it should be greater, since 0.1 is greater than 0.001

hope this helps

a family of 4 spend $104 for tickets to a concert all of the tickets were the same price what was the cost of each ticket?

Answers

Hello There!

104 / 4 = 26
It was $26 per ticket.

Hope This Helps You!
Good Luck :) 

- Hannah ❤
26 dollars is the amount

Your skateboard ramp is 2⅜ feet high. Your friend's skateboard ramp is 2²/5 high. Which skateboard ramp is higher?

Answers

So what you want to do here is get the fractions to have the same denominator.

To do this, you first want to get rid of the 2 from each number.

You can just subtract 2 from each because that won't truly impact the difference, except for if they were different, as in something like 3 2/5 and 4 2/5

So you're left with the fractions 3/8 and 2/5.

Now to get them to have the same denominator, you first find the LCM, or least common multiple. This can be found by just multiplying 8 and 5 together.

8 * 5 = 40

So what you can say is:

3/8 * 5/5 = ?

Since 5/5 = 1.

3/8 * 5/5 = 15/40

2/5 * 8/8 = 16/40

So if you compare the two fractions, you can tell that your friend's skateboard ramp is slightly higher.

T-1
—— = 12. What is t
2
7+a
-4= ——. What is a
5

Answers

For 3.) you would multiply both sides by 2

t-1=24

Then add

t=22

For 4.) multiply by 5

 -20= 7+a

Then subtract

-27=a                                Hope this helps!

-0.4n is less than or equal to 6.8

Answers

ok umm of course its less has the school system failed you
it is less than that is the answer

The perimeter of an isosceles triangle is 23 cm. The base is 4 cm less than one of the equal sides. Find the length of each side.

Answers

Since it is an isos. triangle we know that both sides are equal
Let's let the base=b and the legs =L
We know that B=L-4
And L-4+L+L=23
3L-4=23
3L=27
L=9
Hope this helps! :)
Let me know if you have any questions!

12.33 to the nearest tenth

Answers

12.3 is the answer i think 
The correct answer would be 

12.3 

You would round the hundredth. If the hundredth place is greater than 5, you would round up. If the hundredth place is less than 5, you would round down.

Please answer A,B,and C if possible

Answers

all i know is that b is 6 servings can be made

how to solve 5 hours to 720 minutes

Answers

Final answer:

To convert hours to minutes, multiply the number of hours by 60. When adding or subtracting time, work with like units first and simplify when needed. For conversion, it's also helpful to understand that 60 minutes equals 1 hour for fractional time units.

Explanation:

Converting units of time such as hours to minutes involves understanding the relationship between these units. In this case, the conversion factor between hours and minutes is that 1 hour is equivalent to 60 minutes.

Therefore, to convert hours into minutes, you would multiply the number of hours by 60.

Here's an example on how to convert 5 hours to minutes:
5 hours = 5 × 60 minutes = 300 minutes.

In this context, let's look at a smaller unit to larger unit conversion example:
120 seconds = 120 ÷ 60 = 2 minutes. Dividing the number of seconds by 60 converts seconds to minutes.

Now, let's consider another example by converting a larger unit to a smaller unit:
4 hours = 4 × 60 minutes = 240 minutes. Multiplying the number of hours by 60 converts hours to minutes.

Adding measures of time involves combining like units first, as in the example of adding 1 hour 55 minutes to 45 minutes, resulting in 1 hour 100 minutes. This can be simplified by recognizing that 60 minutes is equivalent to 1 hour, resulting in a total of 2 hours.

Subtraction of time units might require 'borrowing' from a larger unit, such as borrowing 60 minutes from an hour, to facilitate the subtraction process.

Hence, for 5 hours 10 minutes minus 30 minutes, we adjust it to 4 hours 70 minutes and then subtract, resulting in 4 hours 40 minutes.

The sum of two consecutive integers is at least negative fifteen. What are the smallest values of consecutive integers that will make this true?

Answers

Answer:

x+1 is greater than or equal to -7

Step-by-step explanation:

x is the first integer and x+1 is the next (consecutive) integer.

At least stands for greater than or equal to

x+x+1 is greater than or equal to -15

Subtract 1 from each side

2x is greater than or equal to -16

x is greater than or equal to -8

This means

x+1 is greater than or equal to -7

The smallest values of the integers are: x+1 ≥ -7

What is equation?

Equations are mathematical statements containing two algebraic expressions on both sides of an 'equal to (=)' sign. It shows the relationship of equality between the expression written on the left side with the expression written on the right side. In every equation in math, we have, L.H.S = R.H.S (left hand side = right hand side).

Parts of an Equation

There are different parts of an equation which include coefficients, variables, operators, constants, terms, expressions, and an equal to sign. When we write an equation, it is mandatory to have an "=" sign, and terms on both sides. Both sides should be equal to each other. An equation doesn't need to have multiple terms on either of the sides, having variables, and operators. An equation can be formed without these as well, for example, 5 + 10 = 15. This is an arithmetic equation with no variables. As opposed to this, an equation with variables is an algebraic equation.

let the consecutive integers are x  and x+1.

So,

x+ (X+ 1)= -15

2x + 1 =-15

2x= -16

x= -8

Hence, x+1 ≥ -7

Learn more about equation here:

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The Rodriquez family drove 115 miles on 5 gallons of gasoline. Which equation can be used to find how far they can travel on a full 18 gallon tank of gasoline?

Answers

5/115 = 18/x I Believe.
115/5=x/18, divide 115 by 5 equals x divided by 18

Which transformation rule maps ​ triangle ABC ​ onto triangle DEF ?



(x−7, y+3)

(x+3, y−7)

(x+7, y−3)

(x−3, y+7)

Answers

To find our solution, let us first take a point on one figure and match it with a point on the other figure. The easiest one is point C and point F. To get point C to point F, we first need to bring the x coordinate 7 units to the right, or, in other words, add 7. However, we are not yet at point F, as we need to decrease the y- value of point C by 3. Now, we are at point F. So, let's recap on what we did, we added the x by 7, and we subtracted the y value of point C by 3. 

We can turn this into words => (x + 7, y - 3).
Our answer is C) (x + 7, y - 3). Hope this helps and have a fantastic day!

Answer:  The correct option is (C) (x+7, y−3) .

Step-by-step explanation:  We are given to select the correct transformation rule that maps triangle ABC onto triangle DEF.

From the graph, we note that

the co-ordinates of the vertices of triangle ABC are A(-8, 6), B(-3, 6) and C(-7, 4).

And, the co-ordinates of the vertices of triangle DEF are D(-1, 3), E(4, 3) and F(0, 1).

The transformations from the vertices of triangle ABC to the vertices of triangle DEF are

A(-8, 6)   →   D(-1, 3) = D(-8+7, 6-3),

B(-3, 6)   →   E(4, 3) = E(-3+7, 6-3)

and

C(-7, 4)   →   F(0, 1) = F(-7+7, 4-3).

Therefore, the required transformation rule is given by

(x, y)  →  (x+7, y-3).

Thus, (C) is the correct option.

Divide.

−2 4/7

Enter your answer as a mixed number, in simplified form, in the box.

Answers

Answer:
-3 [tex] \frac{3}{7} [/tex] 

Explanation:
[tex] \frac{-24}{7} [/tex] = -3 [tex] \frac{3}{7} [/tex] 
So first make the improper fraction into a mixed number by taking out all the whole numbers from the numerator (3) and making sure the proper sign is in front of the answer (- 3) your remainder is the original numerator minus the product of the answer times the denominator: 24 - (3 • 7) = 24 - 21 = 3. Rewrite the mixed number.

The polynomial function f(x) = 5x5 + 3x – 3 is graphed below.



Which statement best describes the root of f(x) at point P?
A)The root at point P may be 3/5.
B)The root at point P may be 1/5.
C)The root at point P may be 5/3.
D)The root at point P may be 1/3.

Answers

The roots of f(x) are the values for x at which f(x)=zero. The root of f(x) at point P is a bit redundant, since point P is the root of the function (and based on the graph, the only root). 

We could plug zero in for f(x) to find the value of x at Point P, but based on the graph/options provided and the complexity of the function, it may be easier to just eyeball the graph to get the correct answer. We see that point P is between 1/2 and 1 on the x-axis. 

Of the options provided, we want the value for x that satisfies: 1/2 < x < 1

a) 1/2 < 3/5 < 1     CORRECT ANSWER
b) 1/5 < 1/2           INCORRECT 
c) 5/3  > 1             INCORRECT
d) 1/3  < 1/2          INCORRECT

Karla has spent $48 on food. she bought milk cheese and meat. the milk cost half as much as the cheese and the meat cost half as much as the cheese. which equation would help you find the cost of the cheese?

Answers

c = cheese

milk is half of cheese....so milk costs 0.5c
meat is 4 times as much as cheese...so meat costs 4c
and $ 48 was spent

so ur equation would be : c + 0.5c + 4c = 48 <=

Identify the terms in the expression 8x + 6 + 2xy + z

Answers

There are four terms because they are separated by addition or subtraction symbols: 8x, 6, 2xy, and z.

What is an expression?

It is defined as the combination of constants and variables with mathematical operators.

It is given that the expression is,

8x + 6 + 2xy + z

The representation of number patterns can be done using algebraic expressions. If we know the values of each variable in an algebraic expression, we can find the value of the expression.

When one or more quantities in the real world are unknown or have a variable value, you can describe the situation using a variable expression.

In order to create a variable expression for a situation in reality: Establish a variable to represent the quantity that is unknown in the situation by identifying the unknown quantity.

Thus, there are four terms because they are separated by addition or subtraction symbols: 8x, 6, 2xy, and z.

Learn more about the expression here:

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Final answer:

The expression 8x + 6 + 2xy + z is made up of four terms: 8x, 6, 2xy, and z.

Explanation:

The expression 8x + 6 + 2xy + z consists of four separate terms. In algebra, terms are the parts of an expression separated by addition or subtraction signs. The terms in this expression are as follows:

8x - This term has a coefficient of 8 and a variable x.6 - This is a constant term because it does not contain any variables.2xy - This term contains two variables, x and y, with a coefficient of 2.z - This is a term with the variable z and an implied coefficient of 1.    

Identifying terms is essential for simplifying expressions and performing operations such as addition and subtraction of like terms in algebra.

Eliza and Jamie are making cupcakes for a bake sale at school. Eliza needs 2one third c of flour for her recipe and Jamie needs 1three-fourths c for her recipe. They have 4 c of flour. Do they have enough flour for both recipes? Explain.
HELP!!!

Answers

Answer:

Givens:

They have 4c of flour.Eliza needs 2 1/3 c of flour.Jaime needs 1 3/4 c of flour.

To know if the have enough flour, we just need to sum both amounts, but before that, we need to transform all mixed numbers into fractions

[tex]2\frac{1}{3}= \frac{7}{3}[/tex]

[tex]1\frac{3}{4}=\frac{7}{4}[/tex]

Now, we sum

[tex]\frac{7}{3}+\frac{7}{4}=\frac{28+21}{12}=\frac{49}{12}\approx 4.08[/tex]

Therefore, the just have enough flour to do their recipes, because they need 4.08 c of flour approximately, and they have 4 c of flour.

Final answer:

Eliza and Jamie do not have enough flour for both of their recipes for a school bake sale. After adding the required amounts, they are short by 1/12 cup since they need 4 1/12 cups and have only 4 cups of flour.

Explanation:

Eliza needs 2 1/3 cups of flour for her recipe and Jamie needs 1 3/4 cups for hers. To determine if they have enough flour, we must add these two amounts together:

Convert 2 1/3 to an improper fraction: 2 1/3 = (2 × 3) + 1 = 6 + 1 = 7/3 cupsConvert 1 3/4 to an improper fraction: 1 3/4 = (1 × 4) + 3 = 4 + 3 = 7/4 cupsAdd the two amounts of flour: 7/3 c + 7/4 c = (7 × 4) + (7 × 3) / (3 × 4) = 28/12 + 21/12 = 49/12 cupsConvert 49/12 cups to cups: 49/12 = 4 with a remainder of 1/12, which means they need 4 1/12 cups of flour in total.

Since they have exactly 4 cups of flour, Eliza and Jamie do not have enough flour; they are short by 1/12 cup for both recipes combined.

When considering the total amount of flour needed for a recipe, it's important to make sure the sum does not exceed the available amount. In Eliza and Jamie's case, they will need to acquire more flour to meet the requirements of both their recipes for the bake sale.

there are 16 more sophomore than jumoors in an 8 am algebra class.if there are 58 students in the class,find the number of sophomores and the number of juniors in the class

Answers


37 sophomores
21 juniors

A cold wave hit Chicago when the temperature hits 62°F during the cold wave the temperature dropped 2° every hour how many hours was it before the temperature was below 40°F

Answers

For this problem, an important thing to note is how the question says that 'the temperature dropped', meaning that it went down.

This means that the 2 degrees is actually negative.

Then you multiply the change in degrees by hours past:

(−2)×6=−12

Final Answer:

−12∘F

If you are looking for an inequality, the answer is 62-2x<40

How many times does 7 go into 19

Answers

7 goes into 19 2 complete times.  7*2=14, but 7*3=21

the true answer is a decimal, one around 2.71

Find sum or difference.

5/10 - 3/10

A. 1/5
B. 8/10
C. 42/5
D. 1/10

Answers

the answer is a 1/5 hope this helps 

subtract the numerators.

5 - 3.

2.

the denominator stays the same.

2/10.

simplify.
divide both sides by 2

2/2/10/2
1/5

The final answer is 1/5, or A. hope this helps!

Simplify. 14+{−2+3[1+3(−6−2)]} Enter your answer in the box. pls help

Answers

I think it is -57 I simplify so that I got the answer 

well first do -6-2 which is -8 so next you would multiply -8 and 3 which is -24 then add 1 that makes it -23 then multiply that by 3 then you get -2+(-69) which is -71 so then you add -71 and 14 then you get -57 hope this helped :3

Solve for x.

−13x≤−6

Answers

−13 x ≤ − 6

Step 1: Divide both sides by -13.

−13x/−13 ≤ −6/−13x ≥ 6/13
−13x≤−6
 13x ≥ 6
     x ≥ 6/13

hope it helps

One section of wood is 3 5/8 meters long. Another section is twice that long . when the two pieces are put together, how long is the piece of wood that is created?

Answers

10 7/8 meters long when the two sections are put together.
I think I’m total it would be 10.875

One leg of a right isosceles triangle is 8 feet. What is the area of the triangle?

Answers

Step-by-step explanation:

a little late on this answer

The area of a right isosceles triangle with legs each measuring 8 feet is calculated using the formula A = (base x height) / 2, resulting in an area of 32 square feet.

The question you've asked is about finding the area of a right isosceles triangle when one leg is known. In a right isosceles triangle, both legs are of equal length. Since one leg is given as 8 feet, the other leg is also 8 feet. The formula for the area of a right triangle is A = (base x height) / 2.

In this case, the base and height are the same, which are the lengths of the legs of the triangle, so the formula becomes A = (8 feet x 8 feet) / 2. Performing the calculation, we find that A = 64 feet2 / 2, which simplifies to A = 32 feet2. Therefore, the area of the triangle is 32 square feet.

Brainliest for first answer

Answers

597 =  500 + 90 + 7

x   3=   x                3

1791 = 1500 + 270 + 21     

The value of y is twice the value of x, decreased by one. Find y.

Answers

2x-1=y  This is the equation for your problem.

Does a cell phone weigh 113 grams or kilograms

Answers

Think about it, it most likely weights 113g not kgs
Grams.. kilograms is too much
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