x + y = 3 solve for y

Answers

Answer 1

Answer:

X + Y = 3 Y = 1 X = 2

Step-by-step explanation:

A variable is always 1

Answer 2

Answer:

x is either 2 or 1 and y is either 1 or 2

Step-by-step explanation:

because the only equation that would fit this is 1 + 2  or 2 + 1 so... y would either be 2 or 1 .


Related Questions

Albert Einstein primarily immigrated to the United States because he

Answers

Answer: Einstein primarily emigrated to the United States because he had a Jewish background, and Adolf Hitler, who became Germany's chancellor in 1932, was about to adopt Anti-Semitic policies.

Hope this helps!!

Sorry if it's incorrect!!

Have a nice day!!

c on edge

wanted to avoid being a victim of anti-semitism

A ______ is a set of two or more equations that have the same variables
- table
- system of equations
- solution of a system
- elimination method ​

Answers

Answer:

system of equations

Answer:

System Of Equations

Step-by-step explanation:

Solve the inequality.

[tex]$\frac{2}{7}\ \textgreater \ b+\frac{5}{7}$[/tex]

Answers

The answer to the inequality is b < -3/7

Ali has invited 18 adults and 6 children to a cookout.
Mo, Ali’s best friend, suggests that Ali seat an equal number of adults and an equal number of children at each table.
What is the greatest number of tables Ali could use? How many adults and how many children would be seated at each table? Explain.

Answers

3 tables and is going to be 6 adults and 3 kids at each because you just have to divide 18 by 6

Answer:

Ali could use 6 tables. There would be 3 adults

and 1 child seated at each table.

Step-by-step explanation:

GCF to find the number of tables:

18: 1, 2, 3, 6 , 9, 18;

6: 1, 2, 3, 6 .

Please help I don't understand how to do this lol​

Answers

Answer:

i think it's c i hope it's right

Step-by-step explanation:

Find the solution to the system of equations. Write the solution as an ordered pair. 3x+2y=-7 and 5x-3y=20

Answers

Answer:

(1,-5)

Step-by-step explanation:

Please help me with my math homework. I don’t understand it

Answers

Expert Checked

Me too there's no math problem...

Things you could try to fix this:

Try asking your teacher what is the work?

Try searching or contacting main educator on your work files.

Figure out what your teacher told you

Try calling the school or teacher.

Etc.

How do I simplify this?

Answers

Answer:

sorry

Step-by-step explanation:

Find the cost of 4.8 kilograms of potatoes at the price of $0.75 a
kilogram?

Answers

Answer: $3.60

Step-by-step explanation:

If you need 4.8 kilograms of potatoes and each kilograms costs $0.75, then we should multiply 0.75 by 4.8 to find the cost of 4.8 kilograms of potatoes.

4.8 x 0.75 = 3.6.

Therefore, the cost of 4.8 kilograms is $3.60 dollars. I hope this helps, and good luck!

help megh ghvgcj bhnbjfvgbn hvcf

Answers

Answer:

swap the inequality with the equasion and ur good

PLZ MARK AS BRAINLIEST

An expression does not have an equal sign. Therefore, the first option on the right side is an expression.

An inequality compares two terms and whether or not they’re equal. This uses the > and < signs. The last option on the right side is an inequality.

An equation has an equal sign, therefore the second option on the right side is an equation.

Calculate the volume of this prism.
4 cm
10 cm
5 cm
8 cm
12 cm

Answers




Step-by-step explanation:
Separate into two shapes with
then use fomula length * width * height
shape 1: 7*8*10=560cm^3
Shpe 2: 5*8*6 =240cm^3
Add the two shapes 560+240=800cm^3

Candace received a 14% raise as part of a promotion with her work.

Before the promotion she was earning $22.50 an hour.

What is her new hourly wage?

Answers

Multiply the employee's current pay rate by that decimal. So it is 31.05 if i'm correct

Colton owns a food truck that sells tacos and burritos. He only has enough supplies to make 120 tacos or burritos. He sells each taco for $3.75 and each burrito for $6. Colton must sell at least $540 worth of tacos and burritos each day. If xx represents the number of tacos sold and yy represents the number of burritos sold, write and solve a system of inequalities graphically and determine one possible solution.

Answers

Answer:

Inequality 1) y≤120−x; shade down

Inequality 2) y≥90−0.625x; shade up

Possible solution: (10,100)

*Colton could sell 10 tacos and 100 burritos.

Step-by-step explanation:

Hope I helped ^u^

Colton can sell 20 tacos and 100 burritos.

What is inequality?

An inequality is a relation between two numbers or expressions that are not equal. It can show which of them is greater or smaller by using symbols like < or >. It can also be a statement of fact about the order relationship of quantities.

Given that, Colton can make 120 tacos or burritos in total, the taco for $3.75 and each burrito for $6, He must sell at least $540 worth of tacos and burritos each day,

Establishing the inequality,

x + y ≤ 120............(i)

3.75x + 6y ≥ 540

0.625x + y ≥ 90...........(ii)

Plotting the graph, the solution will be the portion covered by both the inequality.

One of the possible solution is = (20,100)

Hence, Colton can sell 20 tacos and 100 burritos.

Learn more about inequality, click;

https://brainly.com/question/30228778

#SPJ3

Jack chooses two numbers between 50 and 150

The two numbers have a Lowest Common Multiple (LCM) of 420

They have a Highest Common Factor (HCF) of 28

Work out what the two numbers are.​

Answers

Answer:

84 and 140

Step-by-step explanation:

Jack chooses two numbers between 50 and 150

The two numbers have a Lowest Common Multiple (LCM) of 420

Factors of 420 between 50 to 150

= 60, 70, 84, 105, 140

We are also told that:

They have a Highest Common Factor (HCF) of 28

Hence, we find out of the factors above, which numbers can be divided by 28 without having any remainder.

60/28 = 2.1428571429

70/28 = 2.5

84/28 = 3

105/28 = 3.75

140/28 = 5

Therefore, the two numbers are

84 and 140

Lee joins a club. The registration fee is $100 and it also has a $30 a month fee. Write a linear equation to represent this situation.

Answers

Answer:

Y = 30x + 100

Step-by-step explanation:

Hope this helps. Pls give brainliest.

The number of peach trees in the orchard is directly proportional to
the number of apple trees. When Farmer Bob planted 40 peach
trees, he planted 120 apple trees. Everything was killed in the
drought and he's starting anew. How many apple trees will he
need to plant if he plants 500 peach trees?

Answers

Answer:

there was a difference between the 40 and 120 which was 80 so if there are 500 peach trees he would need to plant 580 because you add the difference to the total. The answer is 580 apple trees

Step-by-step explanation:

plz mark brainliest

The cost of renting a speedboat can be represented by the expression 50x + 250, where x is the number of hours it is rented. Factor the expression 50x + 250

Answers

Answer:

50(x+5)

Step-by-step explanation:

Answer: 50(x+5)

Step-by-step explanation:

To factor this expression, simply find the GCF of 50 and 250, 50.  Then divide both terms by the GCF(50) to get: 50(x+5)

Hope it helps <3 :D

Find the equation of a line that passes through the points (-1,3) and (3,-5).
Leave your answer in the form y = mx + c


Please help me I need to know in the next 10 mins

Answers

Answer:

i'm pretty sure that it's y=-2x+1

Step-by-step explanation:

first we solve for the slope of the line:

we have the points (-1,3) and (3,-5). So we write an equation like so:

3 - -5      

-1 - 3    

3/-1 - -5/3. solving that, you get 8/-4, and 8 divided by -4 is -2, so thats our slope.

now all we've got to do is get the y intercept. the way i found it was i graphed the line, put a dot on the points that we have ( (-1,3) and (3,-5) ) and you should

get 1 as the point on the y axis. again, i myself am not a pro or anything so if its not the correct answer i am so sorry. <3

What is the area of the following circle?

Answers

Answer:

78.53

Step-by-step explanation:

[tex]\pi[/tex] x [tex]5^{2}[/tex]

Answer:

78.5

Step-by-step explanation:

The formula for the area of a circle is A=πr^2.  The radius, (r) is half of the diameter.  The diameter of this circle is 10 in, so the radius is 5 in.  Plug 5 into the formula A=πr^2 to get A=π5^2.  Square 5 to get 25 and plug it back in the formula to have A=25π.  Multiply pi (π, 3.14) by 25 to get 78.5.  

URGENT!!!!!
Work out the image attached
Include Workings

Answers

9514 1404 393

Answer:

17.8 km80.4 m

Step-by-step explanation:

The first attachment shows the sort of geometry involved. The line of sight from the top of the lighthouse makes a tangent with the earth's surface at the horizon (neglecting optical effects due to the atmosphere).

The hypotenuse of the relevant triangle is (r+h), and the angle is adjacent to the radius, r. Then the cosine relation applies:

  Cos = Adjacent/Hypotenuse

  cos(α) = r/(r+h)

We note that the radius is in km, and the length h is given in meters, so we need to do a conversion to put the numbers in this formula. We don't care so much about the angle itself, but we need its value to find the length of the arc along the earth's surface. That is ...

  s = r·α

so, the distance of interest is found from ...

  cos(α) = 6367/(6367 +0.025)

  r·α = 6367·arccos(6367/6367.025) ≈ 17.84 . . . km

The horizon is about 17.8 km from the observer.

__

The second problem requires we find the height value that makes the distance 32 km.

  32 = r·α = 6367·arccos(6367/(6367 +h))

Dividing by the earth's radius and taking the cosine, we have ...

  cos(32/6367) = 6367/(6367 +h)

  h = 6367 -6367/cos(32/6367) ≈ 6367.0804 -6367 = 0.0804 . . . km

The cliffs must be about 80.4 meters high for it to be possible to see that distance.

6x + 3y = -4
15x + 7y = -8
how many solutions does the system of equations have?

Answers

the system of equations has one solution

Guys, please help. Will give crown thing.

Answers

Answer:

NQ = 9cm

Step-by-step explanation:

If you divide 24 with 6, you get 4. So I divide 36 with 4, which gave me 9.

What is the correct answer for the mathematics equation 9 + 10 = is that to simple or too hard to answer

Answers

hmmm it’s a pretty difficult question I think it might be 19 or maybe 21 I don’t know

What is the correct answer for the mathematics equation 9 + 10 = is that to simple or too hard to answer

9 + 10 would = 19

I hope this helps~

The reading of a scale at one end is 3.5 cm and at the other end is 18.5 cm. Calculate the lengths of the needle

Answers

Answer:

15 cm

Step-by-step explanation:

Given that :

Reading at one end, initial reading = 3.5 cm

Reading at the other end, final reading = 18.5 cm

Length of needle :

Final Reading - Initial reading

18.5cm - 3.5cm

= 15cm

PLEASE HELP ME WITH THIS!!!

Answers

Answer:

64 yd

Step-by-step explanation:

[tex]\frac{x}{40} =\frac{32}{20} \\x=\frac{32}{20} \times 40=64 yd[/tex]

Maria will rent a car for the weekend. She can choose one of two plans. The first plan has an initial fee of $57.98 and costs an additional $0.15 per mile driven. The second plan has an initial fee of $43.98 and costs an additional $0.20 per mile driven. How many miles would Maria need to drive for the two plans to cost the same?

Answers

M=#of Miles

57.98+.15M=43.98+.20M

57.88-43.88=.20M-.15M

14=.05M

14/.05=M

M=280 miles

A researcher measured approximately 0.005123 grams of bacteria in a sample. How is this number expressed in scientific notation?

Answers

Answer:

5.123 × 10-3

m × 10n, where m is a number between 1 and 10 ( 1 ≤ |m| < 10 ) and the exponent n is a positive or negative integer.

I hope this helps.. :D

3. Simplify. State the restriction
a) 6x^2-54y^2
X^2+4xy-21y^2

Answers

Answer:

i think they are simplified and i don't know what a restriction is

Use elimination to solve for x and y:
5x + 4y = 23
x - 4y = - 5
O (3, 2)
O (2,3)
0 (7. – 3)
0 (7,3)

Answers

Answer:

x=3, y=2

Step-by-step explanation:

what is the value of the expression shown 1/2 (6.2 - 0.04)

Answers

Answer:

3.08

Step-by-step explanation:

1/2(6.2-0.04)

1/2(6.16)

6.16/2

3.08

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