Estimate the solution of the system x+y=4 2x-y=6 by sketching a graph of each linear function. Then solve the system algebraically. Use your estimate to judge the reasonableness of your solution. The estimated solution is The algebraic solution is The solution is/is not reasonable because​

Answers

Answer 1

Answer:

(10/3, 2/3)

Step-by-step explanation:

You may find it easier to write these two equations x+y=4 2x-y=6 in a column:

x+y=4

2x-y=6

Adding these together will eliminate y:

3x = 10.  Then x = 10/3.

Substituting 10/3 for x in the first equation results in:

10/3 + y = 4

Clear fractions by multiplying all three terms by 3:

10 + 3y = 12

Then 3y = 2, and y = 2/3.

The solution is (10/3, 2/3)


Related Questions

Find the area of the object

Answers

Answer:

2π + 24 m² = 30.3 m²(3 s.f.)

Step-by-step explanation:

Area of rectangle: l x w

6 x 4 = 24 m²

Area of semicircle: πr²/2

r = 4/2 = 2

π x 2² / 2

4π / 2

Total area: 2π + 24 m² = 30.3 (3 s.f.)

What figure has properties of all sides congruent and all right angles?

A. Rectangle
B. Square
C. Parallelogram
D. Rhombus


HELP ME PLEASE

Answers

A. Rectangle


Here bestie

points for whoever solves this little question first
if an coco-nut has milk and hair why isn't it considered a mam-mal

Answers

A coconut does not, in fact, have hair despite what it's called.

Additionally, it does feed its young with milk, unlike mammals.

Also, a coconut is a plant. Plants are not mammals.

COCONUT MILK Yaayyyyyyyyy

Ratio..A candy store sells snacks by weight. A six ounce bag of candy cost $3.60. Predict the cost of a 2ounce bag.

Answers

Answer:

A 2 ounce bag costs $1.2.

Step-by-step explanation:

With the information provided, you can use a role of three to find the cost of a 2 ounce bag given that you know that a six ounce bag costs $3.60.

6 ounce bag → 3.60

2 ounce bag →   x

x=(2*3.60)/6

x=7.20/6

x=1.2

According to this, the answer is that a 2 ounce bag costs $1.2.

Which of the following fractions is not in simplest form?

A) 4/15

B) 7/10

C) 9/12

D) 3/4

Answers

Answer:C) 9/12

Step-by-step explanation:

what is the probability of each of the following? a.Not drawing a blue chip, where probability of (drawing a blue chip) =3/8 b. Not seeing Fred tomorrow, where probability of (seeing Fred tomorrow) =2/5 c.Not going to the movies this evening, where probabilty of (going to the movies this evening)= 3/4 d. Not raining tomorrow, where probabilty of (raining tomorrow) =30%

please help:/​

Answers

Answer:

a. 5/8 b. 3/5 c. 1/4 d. 70%

Step-by-step explanation:

Please fill in the missing cells and describe the rule

Answers

Answer:

The OUT for -3 is 6, and the OUT for 1 is 2.

Step-by-step explanation:

The rule is for any x, OUT(x) = IN(x) * (x+1)

Below is showing the rule:

IN=2: 2*3=6

IN=4: 4*5=20

IN=10: 10*11=110

etc.

If I helped, a brainliest would be greatly appreciated!

Find each of the following angles and arcs formed in circle R. (PLEASE HELP!! WILL MARK BRAINLIEST!)

Answers

Answer:

m<RTV = 90°

m<TRU = 129°

m<TVU = 51°

m<TSU = 64.5°

mST = 101°

mSTU = 230°

Step-by-step explanation:

i just did it:)

The measure of each angles are; m<RTV = 90°, m<TRU = 129°, m<TVU = 51°, m<TSU = 64.5°, mST = 101° and mSTU = 230°.

What is a circle?

A circle is a shape consisting of all points in a plane that are given the same distance from a given point called the center.

Since Angle RTV is formed by the segments RT - that is the radius of the circle, and TV, which is tangent to the circle at point T. The radius always forms a right angle with the tangent lines.

Hence, the measure of angle RTV is; 90°.

The measure of a central angle and the measure of the intercepted arc would be equal. Hence, the measure of angle TRU is 129°.

Since RTVU is a quadrilateral. We know that 3 of the interior angles' measures are 90°, 90°, and 129°. The measures of the interior angles of any quadrilateral add up to 360°, the measure of angle TVU is 51°.

Thus the measure of angle TSU is 64.5°.

Also the sum of all consecutive arcs in a circle is 360°,

We know that mTU = 129° and mUS = 130° then the measure of arc ST is 101°.

Learn more about circle here;

brainly.com/question/12512221

#SPJ3

Tell whether the events are independent or dependent. Explain PLEASE HELP I WILL GIVE BRAINLIEST!!!

Answers

Answer:

5: independent, 6:independent, 7:independent, 8:dependent, 9:dependent

Step-by-step explanation:

5 is independent because the first roll of the die does nothing to affect the second.

6 is independent because the first flip of the coin does nothing to affect the second

7 is independent because the first draw from the bag does nothing to impact the second, if they didn't place a marble back then it would become dependent.

8 is dependent because by keeping the first marble you change the odds for the second draw. The second draw depends on the first.

9 is dependent because there is a set amount of names placed into this raffle. Say to start you have 12. That means you have a 1/12 chance of being chosen. Once your name is drawn it goes up to a 1/11 chance. The first action directly impacts the second making it dependent.

Evaluate each expression for n = 5. 6n + n2​

Answers

Answer:

40

Step-by-step explanation:

1. Plug in the given value for n

6(5) + (5)2

2. Solve using PEMDAS

(I'm not sure if the 2 after the n is supposed to be squared, but if it was n^2 then the correct answer would be 55, I think)

30 + 10 = 40

Therefore, the answer is 40

Hope this helps :)

Solve the following polynomial equation. Identify all solutions.

x^(3)+54x^(2)+53x=0

Brainlest + Thanks :)
help asap

Answers

x(x+1)(x+53)
With factoring!

Hope this helps!

The path of a prairie dog as it burrows underground is modeled by the equation
y22
= x2 – 2.4x , where x is the linear distance in meters from where the prairie dog
went underground. The graph shows the path of a prairie dog after burrowing under
the ground at (0, 0). At which distance, x, from (0, 0) does the prairie dog reach to
ground level?

Answers

2.4 meters separate the prairie dog from (0,0) and the ground level.

What is algebraic Expression?

Any mathematical statement that includes numbers, variables, and an arithmetic operation between them is known as an expression or algebraic expression. In the phrase 4m + 5, for instance, the terms 4m and 5 are separated from the variable m by the arithmetic sign +.

To find the distance x from (0,0) where the prairie dog reaches ground level, we need to find the point on the graph where y=0.

Substitute y=0 into the equation:

0 = x^2 - 2.4x

Factor out x:

0 = x(x - 2.4)

So either x = 0 or x - 2.4 = 0.

If x = 0, the prairie dog is still underground, so we take x = 2.4 as the distance from (0,0) where the prairie dog reaches ground level.

Therefore, the prairie dog reaches the ground level at a distance of 2.4 meters from (0,0).

Learn more about algebraic Expression here:

https://brainly.com/question/953809

#SPJ2

A triangle has angles measuring 35° and 90°. What is the measure of the third angle?

Answers

Answer:

55 degrees

Step-by-step explanation:

All the angles of a triangle should add up to 180 degrees.

So, if you add angles 1 and 2 together and subtract them from 180 it will result in the unknown angle.

35+ 90 + x = 180

125 + x = 180

x = 55

4. In the diagram below, segment BD is parallel to segment CE with AB = 6, 2 points
BC = 9, AD = 8, and DE = 12. Which of the following mappings of triangle
BAD would justify that it is similar to triangle CAE?*
A dilation by a factor of 3/2centered at A
A dilation by a factor of 4/3 centered at C
A dilation by a factor of 5/2 centered at A
A dilation by a factor of 3/4 centered at C

Answers

Answer:

12

Step-by-step explanation:

122

A store is going out of business. Everything is
marked down 40%. How much do you pay for an item
that used to cost $150?
A. $90
B. $110.50
C. $40

Answers

A. $90
150 x .40= 60
150-60=90

All right so i need someone to walkthrough the way to do this cause i'm lost. please do it step by step! Thanks!

Answers

Step-by-step explanation:

Hey there! Your answer :-

The skeletal formula of a quadratic equation is :-

[tex]\sf{ax^2 + bx + c}[/tex]

According to this question, we have :-

[tex]\sf{3x^2 + 8x + 4}[/tex]

So, the answers :-

a = 3b = 8c = 4

Hope it helps :) Best of luck for your future!

A cabin in the shape of a regular hexagonal pyramid has a slant height of 10 feet and a base edge length of 15 feet. Paint for the cabin costs $0.50 per square foot. How much does it cost to paint the lateral faces of the cabin?​

Answers

Answer:

if noblepenguin sees this, your a horrible mod. stop deleting my answers

Step-by-step explanation:

HELP I NEED HELP ASAP
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HELP I NEED HELP ASAP
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HELP I NEED HELP ASAP

Answers

Answer:

B they equations i are múltiple

find the area of the circle. round to the nearest tenth. please help and please show work!!!!!

Answers

Answer:

A = 254.5 mm^2

Step-by-step explanation:

The radius of this circle is 9 mm.

Using the formula A = (pi)r^2, we find the area of this particular circle to be:

A = (pi)(9 mm)^2, or

A = 254.5 mm^2

A square has side lengths of 9, which of the following is a correct formula for finding the area of a square? Select all that apply. i will give u brainlist

Answers

9^2 because area is l*w and a square has all same side lengths

what the other person said. 9^2

HELP I ONLY HAVE THESE TWO QUESTIONS LEFT!!!!!!! First, How Many cubic blocks of side length 1/6 inch would it take to fill a cube with a side length of 2/6 inch? Second question, How many cubic blocks of the side length 1/7 inch would it take to fill a Rectangular prism with a length, width,and height of 3/7, 1/7, and 3/7 inch, respectively?

Answers

Answer:

1. There are 8 cubic blocks are needed to fill a cube. Explanation in pic

2. 441 cubic blocks will fill the rectangular prism. Explanation in pic

(hope this helps can i plz have brainlist :D hehe)

Step-by-step explanation:

Answer:

1. 8 cubic blocks, 2. 9 cubic blocks

Step-by-step explanation:

A farmer raises chickens and cows. There are 34 animals in all. The farmer counts 110 legs on the animals. How many cows and how many chickens does the farmer have?

Answers

Answer:

13 chickens and 21 cows

Step-by-step explanation:

help help help helpheplheplhepl

Answers

Answer:

1. E

2. D

3. C

4. B

5. E

6. E

7. E

8. E

9. D

Step-by-step explanation:

I hope this helps

Please please help me with this question ASAP ASAP please

Answers

What’s the question?

who wants to be friends? and what is the square root of a decimal

Answers

Answer:

Mee

Step-by-step explanation:

The Ridgeport school district collected data about class
size in the district. The table shows the class sizes for five
randomly selected kindergarten and seventh-grade
classes.
Number of students in randomly
selected class
Mean Mean absolute
deviation
19
1.6
Kindergarten 17, 17, 21, 20, 20
Seventh 28, 30, 30, 29, 28
grade
29
0.8
Based on these data, which statement is true?

Answers

the answer is....the average size of seventh-grade class is larger but varies less than that of a kidergarten class.

your welcome.

Pleas help me !!! It’s due today

Answers

KE=0.5xmxv2
=0.5x 1.2x10^3x (3.4x10^3)^2=6936000000

Find the mean of the given data.
3, 4, 5, 7, 10, 12, 15

Answers

Answer:

mean: 8

Step-by-step explanation:

Find the sum of all of the numbers:

3+4+5+7+10+12+15=56

Divide the sum by the quantity of numbers in the set:

56/7=8

Answer:

The mean= 8

Acellus sux

Step-by-step explanation:

Mason cuts a giant circular cookie into 5 equal pieces. Which statements are true about the angle measures of the pieces. Pls answer!

Answers

Answer:

360 divided by 5 equal pieces equals to 72 a whole circle is 360 degrees

Step-by-step explanation:

Im sorry if im wrong

6 out of 18 in a fraction

Answers

Answer:1/3

Step-by-step explanation:1/3 is the simplified fraction for 6/18 by using the GCD or HCF method. Thus, 1/3 is the simplified fraction for 6/18 by using the prime factorization method.

Answer:

6/18=1/3

Step-by-step explanation:

here so the 6 is common with 18 and so that is 3

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