Mathematics Middle School

15 points

Which statements are true about the ordered pair (7, 19) and the system of equations?

{2x−y=−5 x+3y=22


Select each correct answer.


The ordered pair (7, 19) is a solution to the first equation because it makes the first equation true.

The ordered pair (7, 19) is a solution to the second equation because it makes the second equation true.

The ordered pair (7, 19) is not a solution to the system because it makes at least one of the equations false.

The ordered pair (7, 19) is a solution to the system because it makes both equations true.

Answers

Answer 1

Answer:

3 and 2 i think

Step-by-step explanation:

Answer 2
2,3 need an explaination?

Related Questions

The box plots below show student grades on the most recent exam compared to overall grades in the class:

two box plots shown. The top one is labeled Class. Minimum at 70, Q1 at 74, median at 83, Q3 at 92, maximum at 100. The bottom box plot is labeled Exam. Minimum at 60, Q1 at 81, median at 87, Q3 at 91, maximum at 95.


Which of the following best describes the information about the medians? (1 point)

A) The exam outlier at 60 makes the IQR narrower and the median higher.
B) The class data is more evenly spread, which pulls its median down.
C) The class median is lower than the exam median.
D) The class Q3 is higher than the exam Q3.

Answers

Sorry A is not the answer

Answer:

Sorry but I don't have an explanation I guessed and got it right the answer is C)The class median is lower than the exam median. I hope this helps. :)

Please answer asap. find x

Answers

Answer:

r

Step-by-step explanation:

Nancy is replacing the mat on her trampoline. The circular mat has a diameter of 18 feet. what is the area of the trampoline mat to the nearest square foot?


Someone please help me <3 :( :)

Answers

Answer : 254 ft sq

A = pi x r^2

A = 3.14 x 81

rewrite [tex]-2x+3y=-15[/tex] in slope-intercept form

Answers

Answer: [tex]Y = \frac{2}{3} x - 5[/tex]

Step-by-step explanation:

Answer: y=7.5+-5

Step-by-step explanation:

Divide 3y from itself and -15 to cancel out the Y variable. So Y is equal to -5. Then you would be left with -2x=-15. So then you would have to divide -2x from itself and -15, which would give you 7.5, and that is your x variable.

Plz help me and explain too thanks

Answers

So start out with -5 then subtract -2 you get -3 then subtract 12-3 and get nine. That’s your answer 9. Hope this helps.
Since the slope is equal to -5 you can already get the beginning of the equation being y=mx+b; M=-5, now to find b you need to plug in your numbers: 12=-5(-2)+b then you get 12=10+b. subtract the 10 to find that b=2 then plug in all the numbers to find the answer y=-5x+2

Help please I added the number line.

Answers

The answer is H because if you use a calculator and do 5.75 - 3.50 you would get 2.25 then count out how many 0.25 would make 2.25

Answer:H

Step-by-step explanation:

Because 0.25 x 9 will give you 2.25. Then add that to the original number; $3.50 + $2.25 = $5.75. Hope this helps :)  

Help, offering 20 points and brainliest for correct​

Answers

Answer:

a= 1 b= 7

Step-by-step explanation:

X^2y12/ xy^5

= x^2–1 • y^12–5

= xy^7

Answer:

[tex]xy^7=x^ay^b[/tex]

Step-by-step explanation:

[tex]\frac{x^2(y^3)^4}{xy^5} = x^a * y^b[/tex] = [tex]\frac{x^2(y^12)}{xy^5} = x^a * y^b[/tex]

[tex]\frac{x^2(y^12)}{xy^5} = x^a * y^b[/tex] = [tex]\frac{x^2(y^7)}{x} = x^a y^b[/tex]

[tex]\frac{x^2(y^7)}{x} = x^a y^b[/tex] = [tex]x^1y^7 = x^ay^b[/tex]

[tex]x^1y^7 = x^ay^b[/tex] = [tex]xy^7=x^ay^b[/tex]

Please answer this. Thankyou!

Answers


The y-intercept is b=y1−m⋅x1
b
=
y
1
−
m
⋅
x
1
.
b=1−(3)⋅(3)=−8
b
=
1
−
(
3
)
⋅
(
3
)
=
−
8
.
Finally, the equation of the line can be written in the form y=mx+b
y
=
m
x
+
b
.
y=3x−8
y
=
3
x
−
8
.
Answer:
The slope of the line is m=3
m
=
3
.
The equation of the line in the slope-intercept form is y=3x−8
y
=
3
x
−
8
.
The equation of the line in the point-slope form is y−1=3(x−3)
y
−
1
=
3
(
x
−
3
)
.
The general equation of the line is 3x−y−8=0
3
x
−
y
−
8
=
0
.
3x-y-8=0 that’s the answer i believe

Finish these 2 questions please.

Answers

Answer:

1.A mortal wound is one that causes death

2.A benefactor is someone who helps with gifts of money

Step-by-step explanation:

Could i have branliest sense i didnt copy? plz and thanks

Can I please have brainliest answer?
Thanks

A band expects to put 12 songs on their next CD. The band writes and records 25​% more songs than they expect to put on the CD. During the editing​ process, ​20% of the songs are removed. How many songs will there be on the final​ CD?

Answers

12 songs. 25% of 12 is 3, so you add 3 to 12 and get 15. You then find that 20% of 15 is 3 so you subtract 3 from 15 and get 12 again.
25% of 12 is 3, 12+3= 15. 25% of 15 is 3. 15 - 3 = 12 Answer: 12

The newest phone by Samsung finally came out and costs $499. You were one of the first people in line to buy it so you got a 15% discount and there was a 8.5% tax. What was the total cost of the phone?

Answers

Answer:

$460.20

Step-by-step explanation:

499*15% = 74.85 (total discount price)

499-74.85 = 424.15 (deduct discount from original price)

424.15*8.5% = 36.05275 (total tax from price)

424.15+36.05275 = 460.20275 (add tax to discounted price)

the answer is $460.20

ok this seems a bit hard
can you do this!? :/

Answers

Answer:

(3j⁴k⁸)⁸ = 6561 j³²k⁶⁴

Step-by-step explanation:

3⁸ = 3*3*3*3*3*3*3*3

j⁴=j*j*j*j

(j⁴)⁸ = (j*j*j*j)*(j*j*j*j)*(j*j*j*j)*(j*j*j*j)*(j*j*j*j)*(j*j*j*j)*(j*j*j*j)*(j*j*j*j) = j⁴ˣ⁸ = j³²

.......

(3j⁴k⁸)⁸ = 6561 j³²k⁶⁴

can someone help me wth this

Answers

The answer for Y=3x or graph four

Explain similar figures including explaining how to find the scale factor when given two similar figures and side lengths.

Answers

similar figures are two different figures of different sizes, but have the same shape
Suppose you have two similar figures , one larger than the other. The scale factor is the ratio of the length of a side of one figure to the length of the corresponding side of the other figure. Here, XYUV=123=4 . So, the scale factor is 4 .

Find the slope and the y - interpret of the line in graph

Answers

Answer:

the slope is 2

Step-by-step explanation:

the slope or y intercept is when the line crosses the y axis you can find it by starting at 0 and count how many units until you reach when the line intercepts the y axis.

The slope is 5/1 or just 5. Because it goes up 5 and over one. The Y intercept is 3 because that’s where the point crosses the y axis. Hope this helps!!

can somebody give me a ratio problem for 1:4 (for example For every batch of cookies Eva makes she needs 4 tablespoons of butter) I need a ratio problem like that for 1:4

Answers

Every 1 bag of apple is 4 dollars
Every one bag of apples is 4 dollars

Timmy's car can travel an average of 135 miles on 5 gallons of gas. How many gallons of gas will it use to travel 324 miles?

64 gallons
8 gallons
12 gallons
10 gallons

Answers

Answer:

The answer is 12 cause 135 ➗5=27 then 324 ➗27 =12...

Step-by-step explanation:

Hope this helps! :)

Answer:

12 gallons

Step-by-step explanation:

135÷5 = 27 miles The car can travel 27 miles on 1 gallon of gas

324÷27 = 12

Find the commission.

Answers

Answer:

63.9

Step-by-step explanation:

Convert 9% to a decimal: 0.09

710×.09=63.9

Please give me brainliest

Craig like to collect records last year he had 12 records in his collection now he has 15 records what is the percent increase of his collection

Answers

It should be a 20% increase
25% increase 1/4 of 12 1/4 is equal to 25%

please answer right ill give brainliest

Answers

Answer:

20 songs

Step-by-step explanation:

she starts with 20 songs at beginning of year

PLZZ HELLLLLPPPPievjp

Answers

She can ride a bike 7 miles per hour

The spinner is spun 48 times. What is a reasonable prediction of landing on the letter E?

Answers

Answer:

because that is the right amount of times you spun it

Step-by-step explanation:

If the simple interest on ​$7,000 for 3 years is ​$1,680 , then what is the interest​ rate?

Answers

Answer:

Calculate Principal, Interest Rate, Time or Interest. ... You received $72 in interest after 3 years. ... where I is interest, P is total principal, i is rate of interest per year, and t is total time in years. In this example I = $72, i = 4% and t = 3 years, so ...

Step-by-step explanation:

A number cube has sides numbered 1 through 6. The probability of rolling a 2 is 1/6.

What is the probability of not rolling a 2?

Enter your answer as a fraction, in simplest form, in the box.

Answers

5/6 explanation: if the probability of rolling a two is 1/6 then the probability of not rolling a two is 5/6, 6-1=5

please help me find each unit price

Answers

Answer:

13.$1 per 2 pounds (1/2)

14.$3 per 10 ounces (3/10)

15.$3 per 5 pens (3/5)

16.$12 per 1 book (1/2)

17.$7 per 1 shirt (7/1)

18.$7 per 5 tapes (1/2)

Step-by-step explanation:

Please give me brainliest I really want to rank up.

An equation is shown. What is the value of m that makes the equation true? Answer:

m − 3 [tex]\frac{1}{2}[/tex] = 5 [tex]\frac{2}{5}[/tex]

Answers

Add 3.5 to both sides and you would get 8.9
m= 8.9 is the answer

can some one help me pleeeeeeeeeeeeeeeeeeeeeeeeeeeaaaaaase

Answers

Answer:

X=8

Step-by-step explanation:

A trapezoid has a height of 10 feet, and base measurements of 20 feet and 8 feet. What is the area?

The answer must be in square feet

Answers

Answer:Therefore, the area of the trapezoid

Step-by-step explanation
To find the area of a trapezoid, you can use the formula: A = 1/2 * (b1 + b2) * h, where b1 is the length of the longer base, b2 is the length of the base, and h is the trapezoid's height.

In this case, the longer base (b1) is 20 feet, the shorter base (b2) is 8 feet, and the height (h) is . We obtain the following result as soon as we insert these values into the formula:
A = 1/2 * (20 + 8) * 10
A = 1/2 * 28 * 10
A = 140 square

To know more about
https://brainly.com/question/4216261

What is the area of `∆STR`?

A.
30 square feet
B.
34.5 square feet
C.
57.5 square feet
D.
60 square feet



Here another one T^T

Answers

i believe the answer is A i
It’s A I took the test

Help, please. WILL GIVE BRAINLIEST

A) (1.8,0.4)

B) (2.2,0.1)

C) (2.3 , 0)

D) (2.6, -0.2)

Answers

It’s b because I had that on my paper
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