How many solutions does the system have?

3x + y = 8

2x + 2y = 8

Answers

Answer 1

Answer:

There is one solution

Step-by-step explanation:

I did the Khan Academy lesson and I got it correct.

Answer 2

Answer:

One solution. Set of values (2,2)

Step-by-step explanation:

3x+y=8 0r y=8-3x

2x+2y=8

substitute value of y (8-3x) in first equation into y of 2nd equation

2x+2(8-3x)=8

2x+16-6x=8

-4x=-8

x=2

solve for y.

2x+2y=8

2(2)+2y=8

4+2y=8

2y=4

y=2


Related Questions

Jazz emerged as musicians combined elements of

A. bluegrass, hip-hop, and concert band music
B. classical, ragtime, and blues
C. folk, rap, and movie music
D. classical, lullabies, and rock 'n' roll

Answers

Answer:

B

Step-by-step explanation:

Answer:

The person above is correct.

Step-by-step explanation:

Don't have proof I just know, trust\( ̄︶ ̄*\))

the relative extrema of f(×)=x³-x+1​

Answers

Hope this helps?!!!!

all numbers that have an absolute vlue of -3

Answers

Answer:

No numbers have an absolute value of -3

Step-by-step explanation:

hippity hoppity your pints are my property

absolute value cannot be negative tho

Which equation is a linear function?
y= 1 - 5
3m2 - 3
y = 22 - 1
y= 22 +7

Answers

Answer:

None

Step-by-step explanation:

I think

Evaluate: show your work
Find the value of the variable.
102-8m=86

HELP. PLEASE HELP ME. I could really use your help. Please and thank you :))

Answers

M equals 2 in this equation
do this


102-8m=86
-86 -86
___________
16 -8m (0)
—- -8m
-8m
answer is -2 = m

If a kickball has the diameter of 12 inches , how much air could this call contain ?

Answers

Answer:

904.32. cu.in

Step-by-step explanation:

diameter= 12 inches

radius= 13/2=6 inches

volume of sphere= 4/3 πr³ = 4/3 ×π × 6³ = 904.32 cu.in

The amount of air contain in kickball is,

⇒ V = 904.32 in³

What is Multiplication?

To multiply means to add a number to itself a particular number of times. Multiplication can be viewed as a process of repeated addition.

Given that;

A kickball has the diameter of 12 inches.

Hence, We get;

⇒ Radius = 12/2

Radius = 6 inches

Since, We know that;

⇒ volume of sphere= 4/3 πr³

Hence, We get;

⇒ V = 4/3 ×π × 6³

⇒ V = 904.32 in³

Thus, The amount of air contain in kickball is,

⇒ V = 904.32 in³

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If Johnny caught 2 out of 5 catfish on his first fishing trip how many catfish can he expect to catch if he caught a total of 60 fish?



60


24


600


6

Answers

Answer:

B, 24

Step-by-step explanation:

2 : 5 ratio of catching catfish

X : 60

2/5 = X/60

6 x (2/5) = (X/60) x 60

60 x (2/5) = X

X = 60 x (2/5)

X = 24

Therefore he can except to catch 24 catfish

The answer would be 24

An unbiased coin is tossed 300 times. How many heads should you expect to obtain?
(Don't comment "here is the link to the answer" because it won't let me access it. Thank you.

Answers

It is always a 50% chance that you will get a head or tails. The more times you flip the coin, the closer you get to exactly 50%. Since this coin was flipped 300 times, it will land heads 150 times. Exactly half.

Which characteristics describe the graph of (x – 6)2 + (y – 12)2 ≤ 196?

circle with solid boundary, center at (6, 12), bounded solution set
circle with solid boundary, center at (–6, –12), bounded solution set
circle with solid boundary, center at (6, 12), unbounded solution set
circle with solid boundary, center at (–6, –12), unbounded solution set

Answers

The characteristics describe in the graph of the circle inequality are a circle with a solid boundary, center at (6, 12), and bounded solution set option first is correct.

What is a circle?

It is described as a set of points, where each point is at the same distance from a fixed point (called the center of a circle)

We have a circle equation in the inequality form:

(x – 6)² + (y – 12)² ≤ 196

The center of the circle is at (6, 12)

The radius of the circle is:

r² = 196

r = 14 units

After drawing a circle on the coordinate plane.

We will see, a circle with a solid boundary, center at (6, 12), and bounded solution set.

Thus, the characteristics describe in the graph of the circle inequality are a circle with a solid boundary, center at (6, 12), and bounded solution set option first is correct.

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Answer:

A:)

Step-by-step explanation:

See attached!

Will award brainliest to correct answer!


Given square ABCD. Two congruent i s o - Δ's ABP and BCQ are constructed with bases AB and BC. Each of these triangles has vertex angle of 80°. Point P lies in the interior of the square, while point Q lies outside of the square. Find the angle measure between PQ and BC.

Thanks in advance :D

Answers

Let's begin noting that a triangle is isosceles if and only if two of its angles are congruent. We can thus find the angle <ABP, recalling that the sum of the interior angles of a triangle is equal to 180°.

[tex] \angle \: ABP = \frac{180 - 80}{2} = 50 \degree[/tex]

Finally, let point K be the intersection between segments BC and PQ, and let's note that the triangle PQB is a right isosceles triangle, since all the angles in a square are equal to 90°, and the two triangles APB and BQC are congruent.

Therefore, the angle BKQ is equal to 180-50-45=85°.

Of course angle BKP=180-85=95°.

Hope this helps :)


What is the possible number of solutions to a system of linear equations in three variables? Select the three
correct answers.
a) 4
b) 1
c) infinitely many
d) 3
e) 2

Answers

a and d and ehxgfhsy eyehe74vd surge

Henri has $24,000 invested in stocks and bonds. The amount in stocks is $6,000 more than three times the amount in​ bonds

Answers

Answer:

s + b = $24,000

And,

s = 3b + $6,000

Step-by-step explanation:

Let us assume the stock be s

And, the bonds be b

So according to the question

It is given that

s + b = $24,000

And,

s = 3b + $6,000

The answers are

s + b = $24,000

And,

s = 3b + $6,000

The same would be considered

You randomly pick a nut from a can of mixed nuts 20 times
and record the results: 5 almonds, 6 peanuts, 2 hazelnuts,
3 pecans, and 4 cashews. Find the experimental probability
of the event.
1. Choosing an almond
2. Choosing a peanut
3. Choosing a peanut or cashew
4. Choosing not an almond
6. Choosing a walnut
5. Choosing not a peanut

Answers

Answer:

you have the highest chance of getting peanuts

What is the value of x?



proof me I came up with -6

Answers

Answer:

Yes, -6 is right

Step-by-step explanation:

Since the angles have to add up to 360, it only makes sense to put X = -6.

If you actually know the answer plz give an explanation to the answer so i know you aren't just answering for points, please plase help this is due before 12:00!!

Answers

Answer:

D

Step-by-step explanation:

The estimated probability of selecting a green marble is 2/25 or 8%, so D is the incorrect statement.

The department of motor vehicles wants to check whether drivers have a slower reaction time after drinking two cans of beer. This was done by selecting a sample of 19 drivers and randomly assigning them to one of the two groups. The reaction times (measured in seconds) in an obstacle course are measured for a group of 10 drivers who had no beer. The other group of 9 drivers were given two cans of beer each and their reaction times on the same obstacle course are measured.
What is the parameter of interest?
a. The mean reaction times (measured in seconds)
b. The mean difference in reaction times between all those who drink no beers and all those who drink two cans of beer
c. The difference between the mean reaction time of the sample of those who drink no beers and the mean reaction time of the sample of those who drink two cans of beer
d. The difference between the mean reaction time of all those who drink no beers and the mean reaction time of all those who drink two cans of beer

Answers

C. The difference between the mean reaction time of the sample who drink no beers and the mean reaction time of the sample of those who drink two cans of beer

Which value of b would make x2 + bx - 24 factorable?
a. 4
b. 5
C. 8
d. 12

Answers

9514 1404 393

Answer:

  b.  5

Step-by-step explanation:

For the trinomial to be factorable using integers, the value of b will be the difference of two factors of 24.

  24 = 1×24 = 2×12 = 3×8 = 4×6

Differences of these factors are 23, 10, 5, 2. Of these, only 5 is listed as a choice.

  b = 5 will make the expression factorable.

Simplify the radical

Answers

Answer:

4

Step-by-step explanation:

4 to the 4th power is 256

An icosahedron has twelve faces, the most of any Platonic solid.

Answers

Answer:

Step-by-step explanation:

True

8) Determine the surface area of the figure. ​

Answers

Answer:

all you do is add all the numbers of the fac es together boom

Step-by-step explanation:

From a 18-foot roll of rubber hose, a person cuts lengths of 23 feet, 2 22 feet, and 6 61 feet. How much hose is left on the roll?​

Answers

Answer:

Trick question? You can't cut 23 feet from an 18 foot roll.

Did you leave out the decimal points?

Step-by-step explanation:

Answer:

You can't cut 23 or 24 feet from 18 foot roll.

If <2 = <6, which must be true about <2?

Answers

Answer:

If 2 6, which must be true about 2? 2 is complementary to 5.

Step-by-step explanation:

Welcome for the answer. This answer is for good intentions only, report if necessary. Thank you and have a good rest of your day!

A sport statistician gathered data on the number of points scored in each game by high school basketball players across the country. She found a population mean of 20.15 and a standard deviation of 3.7. Each sample size was 20 players. By the central limit theorem, which interval do 68% of the sample means fall within?

A.
19.96 and 20.34
B.
18.50 and 21.81
C.
17.67 and 22.63
D.
19.32 and 20.98

Answers

For a sample size of 20 players, 68% of the sample means fall within 19.32 and 20.98

What is empirical rule?

Empirical rule states that for a normal distribution, 68% of the values are within one standard deviation from the mean, 95% of the values are within two standard deviation from the mean and 99.7% of the values are within three standard deviation from the mean.

For a population mean of 20.15 and a standard deviation of 3.7:

68% are within μ ± σ/√n, hence:

68% = 20.15 ± 3.7/√20 = (19.32, 20.98)

For a sample size of 20 players, 68% of the sample means fall within 19.32 and 20.98

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What is the measure of A) 45 degrees
B) 145 degrees
C) 135 degrees
D) 55 degrees

Answers

135 degrees
180 - 45 = 135

ASAP ASAP ASAP ASAP please please help ASAP ASAP please please ASAP ASAP please ASAP help please please ASAP please

Answers

Step-by-step explanation:

The lateral area is

[tex]42\pi[/tex]

The surface area is

[tex]60\pi[/tex]

The volume is

[tex]63\pi[/tex]

What is the vertex of y=5(x-1)^2+4

Answers

Answer:

the vertex is (1,4)

Step-by-step explanation:

your welcome :)

2x - 15 = x + 5

Plz I need it now ​

Answers

Answer:

[tex]2x - 15 = x + 5 \\ 2x - x = 15 + 5 \\ x = 20[/tex]

ʰᵒᵖᵉ ⁱᵗ ʰᵉˡᵖˢ

Answer:

x=20

Step-by-step explanation:

2x-15=x+5

-x          -x

x-15=5

+15     +15

x=20

hey,need the answer.Have a nice Easter ❤️❤️

Answers

Answer:

(B)-4

Step-by-step explanation:

Hey happy Easter how’s your day

What is the equation of the line that passes through the point (-4,-3) and has a slope of 5

Answers

*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆**☆*――*☆*――*☆*――*☆

Answer: 5x - y = 17

Explanation:

y=5x+b

-3= 5(-4) + b

-3 = -20 + b

17 = b

y = 5x + 17

5x - y = 17

I hope this helped!

<!> Brainliest is appreciated! <!>

- Zack Slocum

*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆**☆*――*☆*――*☆*――*☆

Help me plzzzz??!!! Anyone??

Answers

Answer:

12

Step-by-step explanation:

Answer:

we have a same question bro TwT

Step-by-step explanation:

i also doesn't know the answer TwT but i thought its 12

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