Mathematics High School

solve the system of equations using subtraction
4x-3y=-1
4x+y=11

Answers

Answer 1

Step-by-step explanation:

4x-3y=-1

4x+y=11

[tex]4x = - 1 + 3y \\ x = \frac{ - 1 + 3y}{4} [/tex]

[tex] - 1 + 3y = 11 - y \\ 3y + y = 11 + 1 \\ 4y = 12 \\ y = 3[/tex]

[tex]x = \frac{ - 1 + 3 \times 3}{4} \\ x = \frac{ - 1 + 9}{4} \\ x = \frac{8}{4} = 2[/tex]

Related Questions

pls help i dont understand

Answers

OMG i have THIS SAME question and i don't understand either !!!! YOUR NOT ALONE

Find the missing lengths in the diagram below. Round your answer to the nearest tenth

Answers

Answer:

lower: 8 higher: 15

Step-by-step explanation:

100-36=64

sqrt(64=8

289-64=225

sqrt(225)=15

A floor plan is an example of a drawing_ help

Answers

Answer:

There is no drawing or pic. You might want to re-post it. ^^

Step-by-step explanation:

Answer: A floor plan is an example of a scale drawing.

IN 3 MINUTES, JOHN DELIVERED
NEWSPAPERS. IN 5 MINUTES HE DELIVERES
20. WHAT WAS THE RATE OF CHANGE PER
UNIT(MINUTE)? MARE A CHART.
MIN. Ne

Answers

1min=4 newspapers

3min=12 newspapers

how I got 1min=4 newspapers

so I took how he got 20 newspapers in 5 min divided 20 by 5

which I got 4 out of than I did 4x3 and got 12 which means 3mins= 12 newspapers

brainleys please

Help me. Help me. Help me.

Answers

Answer:

40 is correct answer.its ok if wrong sorry

Uhh help ...again lol. I will give BRAINLIEST for the right answers, 2 or 3 answers :)))

Answers

Answer:

324.27

Step-by-step explanation:

3,891.24/12=324.27

6) Which point on the number line is the best approximation for 32 ? H H V25 A B с 36 D A Point A B Point B C Point D Point D А​

Answers

Answer:

I was goona put an aswer but i clicked on wrong question sorry

Step-by-step explanation:

a caterer makes 3 extra sandwiches for every 12 sandwiches a customer orders. The caterer makes a total of 120 sandwiches for a customer. How many sandwiches did the customer order? (Not including the extra sandwiches)

Answers

Answer:

96

Step-by-step explanation: 12+3=15   15x8= 120 then take out the 3 from the 15 and do 12x8 and it's 96.

6 = 1 - 8n + 5
an
Solve

Answers

Answer:

n=0

Step-by-step explanation:

simplifying

6 = 1 + -8n + 5

Reorder the terms:

6 = 1 + 5 + -8n

Combine like terms: 1 + 5 = 6

6 = 6 + -8n

Add '-6' to each side of the equation.

6 + -6 = 6 + -6 + -8n

Combine like terms: 6 + -6 = 0

0 = 6 + -6 + -8n

Combine like terms: 6 + -6 = 0

0 = 0 + -8n

0 = -8n

Solving

0 = -8n

Solving for variable 'n'.

Move all terms containing n to the left, all other terms to the right.

Add '8n' to each side of the equation.

0 + 8n = -8n + 8n

Remove the zero:

8n = -8n + 8n

Combine like terms: -8n + 8n = 0

8n = 0

Divide each side by '8'.

n = 0

Simplifying

n = 0

N=0! Easy . Pls thanks !!

A triangle has sides with the measures of 11m, 11m, and 25m. State if this is a triangle or not.
yes or no

Answers

Answer:

no

Step-by-step explanation:

11+11<25

The sum of 11 and 11 is less than 25 and therefore, this triangle is not possible.

I WILL GIVE BRAINLIEST❤️


At the county fair, the Baxter family bought 6 hot dogs and 4 juice drinks for $13.90.
The Farley family bought 3 hot dogs and 4 juice drinks for $9.25. Find the price of a
hot dog and the price of a juice drink.

Answers

Answer:

divide.

Step-by-step explanation:

sorry

además no ablo mucho inglés

HELP ASAPPP lol thx

Answers

x=3 (the line is on the x-axis, positive because it’s on the positive quadrant)

How many triangles can be drawn with side lengths 3, 5, and 9?

Answers

Answer:

no triangle

Step-by-step explanation:

SOLUTION: No; . The sum of the lengths of any two sides of a triangle must be greater than the length of the third side.

PLEASE HELP IMMEDIATELY AND SHOW HOW TO DO IT PLS

Answers

It’s 30-60-90 Triangle

Can anyone Plz help me in this question (see the attachment)
Fast Plz tomorrow is my exam.... ​

Answers

Answer:

I hope this helps. When you're drawing yours, make this widths of the bars the same. Leave a gap before drawing your bars.

Please give brainliest.

I've you don't understand something, please comment

Find the measurement of x

Answers

Answer:

14

Step-by-step explanation:

90-34=56/4 =14

What is the slope of the line that passes through the pair of points?
(4,8), (10,-2)

Answers

Answer:

-10/6

Step-by-step explanation:

10-4=6, and 8-(-2)=-10

Solve the equation for x

Answers

Answer:

x = 0

Step-by-step explanation:

Given the diagram, we know that the left side is the same as -2x + 6 and the right side as -6. We can write an equation and solve for x.

-2x + 6 = 6

~Subtract 6 to both sides

-2x = 0

~Divide -2 to both sides

x = 0

Best of Luck!

Answer:

x=0

Step-by-step explanation:

-2x+6=-6

-2x=0

x=0

Please help this is due in 12 minutes

Answers

Answer:

1. 285   2. 2 795   3. 26 320

Step-by-step explanation:  

   19

x  15

  95

 190

285

To get the 95, multiply 9 x 5, which is 45. Then, carry over the 4 and multiply 1 x 5, which is 5. Add 5 + 4, which is 9, so then you have 95.

To get the 190, you first have to write a 0 in the unit's place because we are working with the tens. Then, you multiply 9 x 1, which is 9. You then multiply

1 x 1, which is 1.

For the final step, you add 95 + 190 = 285 and this is your answer.

Please help! Will Mark if you are right!!

What is the turning point of the graph of f(x)=|x−4|?

Answers

Answer:

the second one

Step-by-step explanation:

Can someone please help? Thanks!

Answers

Hey, I have already answered these all questions except the last question in your previous question. Make sure to see them.

For the last question, the answer would be the second choice as when times keep flowing, the distance still remains the same (not to be confused with speed.)

Basically when times keep going, the distance will stay the same without any changes.

Solve each system of linear equations by
adding or subtracting. Check your answer.
-5x + y = -3
5x – 3y = -1


Answers

Here is your answer !

Jared's battery has 4/25 percent of life left. Edward's battery has 3/25 percent of life left. Who has the most battery life left?​

Answers

Answer:

Jared

Step-by-step explanation:

4/25 is larger than 3/25

A fruit company delivers its fruit in two types of boxes: large and small. A delivery of 3 large boxes and 8 small boxes has a total weight of 91 kilograms. A delivery of 5 large boxes and 2 small boxes has a total weight of 78 kilograms. How much does each type of box weigh?

Answers

Answer:

the large box weight is 6.50 kg and the small box weight is 13 kg

Step-by-step explanation:

The calculation of each type of box weight is shown below:

Let assume the large box be x

And, the small box be y

Therefore

 3x + 8y = 91.......(i)

5x + 2y = 78.......(ii)

Multiply by 5 in equation 1 and by 3 in equation 2

15x + 40y = 455

15x + 6y = 234

Now deduct the last equation from the above one

34y = 221

y = 6.5 kg

For x, it is

3x + 8(6.5) = 91

3x + 52 = 91

3x = 91 - 52

3x  = 39

x = 13 kg

Hence, the large box weight is 6.50 kg and the small box weight is 13 kg

Solve for x. 4.2x + 0.8x = 5*

Answers

Answer:

1

Step-by-step explanation:

Answer: 1

Step-by-step explanation:

Add (4.2x+0.8x)

5x=5

Divide by 5x to each side

x=1

Help plz!!!?!?!?!!!!!!!!!!

Answers

I’m pretty sure the answer would be two 8-6y=2
x -intercept =2

I need help with this please ​

Answers

Answer:

Ok I'll help ya out

Here you go

Don't forget to give thanks

9 > d,d = 3 is it true or false?

Answers

Answer:

True

Step-by-step explanation:

9 is a bigger number than 3

What is the slope of this line?
Enter your answer as a whole number or a fraction in simplest form in the box.

Answers

Answer:

0

Step-by-step explanation:

the slope of this line is a zero slope as it is completely horizontal

The slope is the steepness of a line.

The slope of the given line is -5.

What is equation of a line?

The equation of a line is a form of representing the set of points, which form a line in a coordinate system. 

The general equation of a straight line is given as:

y = mx + c,

where m = slope of the line and c = y-intercept.

We have,

A line on a graph.

Three points are given on the graph:

(2, -8), (0, 2), and (7, 2)

We can select any two points and find the slope of the line.

The slope of a line is given as:

Slope = (d - b) / (c - a)

Where (a, b) and (c, d) are the two points.

(a, b) = (2, -8) and (c, d) = (0, 2)

Slope = (2 - (-8)) / (0 - 2)

Slope = (2 + 8) / -2

Slope = 10 / -2

Slope = -5

Thus,

The slope of the given line is -5.

Learn more about the equation of a line here:

https://brainly.com/question/14200719

#SPJ2

Bottles of sparkling water usually cost 1.69 each each. This week they are on sale for 4 for $5. You bought one last week and one this week. Did you pay more or less for the battle this week? How much more or less?​

Answers

Answer:

1.69×4 is 6.76, but 4 bottle for 5 dollars is better. you paid less for the deal. less money by 1.76

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