what is the solution for

2x + y = 4

3x + 3y =9

Answers

Answer 1

Answer:

X=3 y = 5

Step-by-step explanation:

Step 1) Solve the first equation for  y

Step 2) Substitute  3 x − 4  for  y  in the second equation and solve for  x

Step 3) Substitute  3  for  x  in the solution to the first equation at the end of Step 1 and calculate  y

The solution is:  

x = 3  and  y = 5  or  ( 3 , 5 )


Related Questions

Solve the following equation below.

Answers

Answer:

x=3 C

Step-by-step explanation:

5x-13=-3x+11

8x-13=11

8x=24

x=3

Answer:

the answer is x=3

Step-by-step explanation:

i hope this help you

The length of a rectangle is 5 less than 3 times its width. The perimeter is
78. Find the LENGTH.*

Answers

Answer:

The length is 28 and the width is 11

Step-by-step explanation:

To solve this problem, we can make the width as x.

Since the length is 5 less than 3 times the width, it's going to be 3x - 5

So now we've got the length and width, just need to find the perimeter, which is all the sides added up together. They already gave us the perimeter, so we just have to solve the equation:

2(3x - 5) + 2x = 78

6x - 10 + 2x = 78

8x - 10 = 78

8x = 88

x = 11

x = 11, but remember, x is the width, not the length. Since we already found what x is, we just have to plug it into the equation of:

3x - 5

3 × 11 - 5

33 - 5 = 28

Answer: Length = 28 (don't forget to add the unit if there is one)

What is the slope? (1,7) (15,14)

Answers

Step-by-step explanation:

y2-y1/x2-x1

15-1/14-7

14/7

=2

determine the equation of the line that passes through points (-4,5) and has a slope of m = -3

Answers

Answer:

y=-3x-7

Step-by-step explanation:

You want to find the equation for a line that passes through the point (-4,5) and has a slope of -3.

First of all, remember what the equation of a line is:

y = mx+b

Where:

m is the slope, and

b is the y-intercept

To start, you know what m is; it's just the slope, which you said was -3. So you can right away fill in the equation for a line somewhat to read:

y=-3x+b.

Now, what about b, the y-intercept?

To find b, think about what your (x,y) point means:

(-4,5). When x of the line is -4, y of the line must be 5.

Because you said the line passes through this point, right?

Now, look at our line's equation so far: . b is what we want, the -3 is already set and x and y are just two "free variables" sitting there. We can plug anything we want in for x and y here, but we want the equation for the line that specfically passes through the the point (-4,5).

So, why not plug in for x the number -4 and for y the number 5? This will allow us to solve for b for the particular line that passes through the point you gave!.

(-4,5). y=mx+b or 5=-3 × -4+b, or solving for b: b=5-(-3)(-4). b=-7.

which expression represents f[g(x)] if f(x)=x^2 +3 and g(x)=-x+1?

Answers

(x+1)^2 + 3

you just put the value of g(x)in f(x)

Use the order of operations to evaluate this expression: 7 + (5 – 9)2 + 3(16 ÷ 8).​

Answers

Answer:

=  7 + (5 – 9)2 + 3(16 ÷ 8)

= 7 + (-4)2 + 3(2)

= 7 + (-8) + 6

= -1 + 6

= 5

Step-by-step explanation:

Remember to use PEMDAS when solving.

PLEASE HELP!
I NEED BOTH PARTS!

Answers

Answer:

a) Yes agree

and b) (I'm not too sure about this one but I think..) By CPCT that is Corresponding parts of congruent triangles are equal/congruent theorem.

Step-by-step explanation:

I'll use this " [ " symbol for angle.

a) yes agreed ;

AB = CB (B is the midpoint of AC)

[ ABD = [ CBD = 90°

BD = BD (common side)

--> therefore by SAS criteria triangle ABD is congruent to triangle CBD.

and by CPCT .... AD = CD .

b) AD = CD (proven by CPCT)

...answer for b you're likely suppose to write it that way. so yeah hope this helps.

The d/f b/n the maximum and minimum value is called______
Answer it ik its easy

Answers

Answer

range ...............

Step-by-step explanation:

ok hope it helps you

Answer:

...........range..........

Step-by-step explanation:

mark as brainliest and follow also.

don't forget to like it.

what is the slope of a line parallel to slope 2 and Perpendicular to slope 2?

Answers

Answer:

it would be right next to the other line

Step-by-step explanation:

Parallel = same slope
It would still be slope 2

Perpendicular = opposite sign and reciprocal slope
It would be slope -1/2

7. The owner of an ice cream stand needs to order wafle cones and sugar cones. There is
room to store 10 boxes of cones. Each box of sugar cones costs $100, and each box of
waffle cones costs $150. He has $1250 budgeted for the purchase of cones.
a. What variables will you use?

Answers

s = sugar cones

w = waffle cones

HELP PLEASE!!!! Picture below!! Will give brainlist!!!

Answers

Answer:

1 / 81

Step-by-step explanation:

[tex]9^{-2} \ means\ \frac{1}{9^2} \\\\[/tex]

then it becomes,

[tex]\frac{1}{81}[/tex]

i need help asap please!

Answers

Answer:

option 2 is the best answer

Step-by-step explanation:

I actually couldn't tell you 100% how i got this answer, but i narrowed it down to option 2 and option 3 because those ones have the inequality sign facing the correct way, and then I solved the inequalities to see which one made more sense, and option 3 came out as negative and you can't have a negative cost on something, so option 2 is the best answer.

ANother giveaway in one another condition is to sing 'I Want it that way by backstreet boys'

Answers

i love that song LOL

Answer:

Step-by-step explanation: Backstreet Boys are an American vocal group, formed in Orlando and The song was a minor success in the U.S., peaking at only The group began working on their second album

In the picture below A II b and m<23
angle measures
112°. Find the remaining

Answers

Answer:

Step-by-step explanation: dude i think we in the same class for math

A company has recently been hiring new employees. Today the company has 33% more employees than it did a year ago. If there are currently
53,200 employees, how many employees did the company have a year ago?

Answers

9514 1404 393

Answer:

  400

Step-by-step explanation:

If x represents the number of employees a year ago, the current number is ...

  x + 0.33x = 53,200

  x = 53,200/1.33 = 400

The company had 400 employees a year ago.

whats the midpoint between -1,2 and -3,-4

Answers

Answer:

md(-2,-1)

Step-by-step explanation:

Md=(x1+x2/2,y1+y2/2)

or,Md=(-1-3/2,2-4/2)

or,Md=(-4/2,-2/2)

•°•Md=(-2,-1)

what is 2,584,606.61 rounded to the nearest dollar?

Answers

answer: 2,584,607.00

CAN SOMEONE HELP ME ON THIS QUESTION ASAP IT IS DUE IN 10 MORE MINUTES

Answers

Answer:

90° degrees

Step-by-step explanation:

cause if you look closely inside the semi circle is a right angle and a right angle is 90°

Two polygons that can be mistaken as similar

Answers

Answer:

polygons that have the same shape, but not the same size .

Step-by-step explanation:

48 is what percentage of 24?

Answers

Answer: 50%

Step-by-step explanation:

24 divided by 48 is 0.50 so 50%

Answer:

200%

Step-by-step explanation:

2=200% and 24 × 2 = 48

Find the value of -7 + 3(-12) - (-3)..
0-40
05
0-16
0-19

Answers

Answer: 40

Step-by-step explanation: -7 + 3 (-12) -(3)

                                               -7 - 36 + 3

                                                      -40

PLZ help need this asap PLZ give an explanation. WILL GIVE BRAINLIEST

Answers

Answer: Its the third one from up. Second from bottom.

Step-by-step explanation: I looked at all of the other ones and they did not make sense. Let me know if I got wrong. God Bless!

Answer:

x = 73 is the number of hours she worked at her job last month.

Step-by-step explanation:

12 is the hourly wage that she earn at her job.

340 is the bonus she received.

1216 is the total she earn from her job.

A submarine is 84 feet below the surface of the water, and descends 10 feet deeper every minute. How many minutes will it take for the submarine to be located 219 feet below the surface? please help last question of the day

Answers

810 minutes

if u add ten to 219 each time u will get 13 and 5 left which is 13.5 and 13.5 in minutes equals 810

Please answer ASP

1. Fill in the blank. When you clear out the fractions in the equation you ______.

2. Trey was solving the equation below in class. The teacher has already told Trey his answer is incorrect but he can’t find his mistake. What mistakes has Trey made that are preventing him from getting a correct answer? What is the correct answer?

Answers

9514 1404 393

Answer:

  1. multiply both sides by 3

  2. (a) chose to multiply by 2/3 instead of 3/2; (b) did the multiplications incorrectly, both for the fraction and the integer; (c) x = 9

Step-by-step explanation:

1. If you want to "clear fractions," you multiply by the denominator of the fraction.

  3(2/3)x = 3(6)

  2x = 18

__

2. The coefficient of x is 2/3. If you want it to be 1, you need to multiply by the multiplicative inverse of 2/3, which is 3/2. Doing that gives ...

  (3/2)(2/3)x = (3/2)6

Then simplifying gives ...

  x = 18/2 = 9

__

Trey's mistakes were: a) choosing the wrong multiplier; b) carrying out the multiplication incorrectly. (2/3)(2/3) = 4/9, and 6(2/3) = 4. Had Trey done the multiplications correctly, he would have seen that he needed a different multiplier to get to the answer.

find the measures of 1 and 4 if 2 = 119 and = 61

Answers

Answer:

1 = 61

4 = 119

Step-by-step explanation:

Alternate angles

Answer:

1 = 61 and 4=119

Step-by-step explanation:

If 2=119 then the other side of the angle which is 1 has to equal the sum of 180-119

if you reflected 2 across the x and y axis or in other words swapped places with the angel diagonal from it, this should answer the same thing as 2 hence why 2 equals 4 equals 119

3 would equal 1 which equals 61 as they both make 180 when paired with the angle directly next to it

Can someone one help me

Answers

Answer:

28

Step-by-step explanation:

what you do is add 39 plus 74

that answer will give you 113 so then you subtract 180 from that

then you get 67, then what you do is subtract 39 and you would get 28

x = 28

Liliana has $5.60 to spend on tape. The tap cost $0.07 per foot. How many feet of tape can she buy? Which equation matches the scenario explained above?

Answers

Answer:

she can buy 70 ft tape

Step-by-step explanation:

5.6 ÷ 0.07

A store is instructed by corporate headquarters to put a markup of ​25% on all items. An item costing 8​$ is displayed by the store manager at a selling price of ​2$. As an​ employee, you notice that this selling price is incorrect. Find the correct selling price. What was the​ manager's likely​ error?

Answers

Answer:

the correct selling price is $10

And, the error is that the manager put the markup percentage as a selling price instead of adding up the markup to the cost price

Step-by-step explanation:

The computation is shown below:

Given that

Markup = 25%

Cost of an item = $8

Selling price of an item = $2

Based on the above information

The amount of markup would be

= 25% × 8%

= $2

Now amount after markup is

= $2 + $8

= $10

Hence, the correct selling price is $10

And, the error is that the manager put the markup percentage as a selling price instead of adding up the markup to the cost price

Answer:

part A:The correct selling price is $10

Part B:And, the error is that the manager put the markup percentage as a selling price instead of adding up the markup to the cost price

Step-by-step explanation:

Step-by-step explanation:

I need help with this, i know the answer isnt 20 because the teacher told me it wasnt

Answers

Answer:

d: 68

Step-by-step explanation:

Answer:

D.68

Step-by-step explanation:

i figured it out to lol

Evaluate 3x – 4 when x=7. The value of the expression is​

Answers

Answer:

17

Step-by-step explanation:

Answer:

Let's solve your equation step-by-step.

3x+2=14

Step 1: Subtract 2 from both sides.

3x+2−2=14−2

3x=12

Step 2: Divide both sides by 3.

3x /3 = 12/3

x=4

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