Mathematics High School

Please help me with this homework using the substitution method

Please Help Me With This Homework Using The Substitution Method

Answers

Answer 1

Answer:

(5, -2)

Step-by-step explanation:

Let's solve the first equation for x:  If x + y = 3, and if we subtract y from both sides, we get x = 3 - y.  Next, substitute 3 - y for x in the second equation:

3(3 - y) + 2y = 11, or

9 - 3y + 2y = 11

Combining like terms:  -3y + 2y = 11 - 9, or

-y = 2, or y = -2.

Then, from the equation x = 3 - y, which we found earlier,

x = 3 - (-2) = 5

Then the solution is (5, -2)

Related Questions

pls help !! due in 8 mins

Answers

Answer: try B

Step-by-step explanation:

2
A plot of land is in the shape of a right-angled triangle whose
base and perpendicular are 65m and 72m, respectively. It its
boundary is made by using 4 round iron wire, find the total cost of..
the wire at the rate of Rs. 12 per meter. (Ans: Rs. 11,232)

Answers

Answer:

Step-by-step huh vunefvjefeffj. Vf Jeff vfnu

which letter matches the coordinate ( 4, -6)?​

Answers

Z would be the answer though it was very hard to see the picture.

Find another point in the pattern that passes through the points (0, 2) and (2, 16)

Answers

9514 1404 393

Answer:

  (4, 30)

Step-by-step explanation:

The two points in the pattern that are given here differ by 2 in their x-value and by 14 in their y-value. Another point can be found by adding 2 more to x and 14 more to y:

  (2, 16) +(2, 14) = (4, 30)

The point (4, 30) is another point in the pattern.

Outliers Use the IQR to determine if any of the data in the data set are outliers. {23, 80, 43, 23, 0, 20, 23, 23, 20, 28} con Any data value less than or greater than are outliers. The outlier(s) for this data set is/are ​

Answers

The outlier of the data set given, using the IQR, is: 0.

How to Find IQR of a Data Set?

IQR = Q3 - Q1.

Given, 23, 80, 43, 23, 0, 20, 23, 23, 20, 28:

Q1 = 20

Q3 = 31.75

IQR = 31.75 - 20

IQR = 11.75

Outliers for the data set are data points below:

Q1 - 1.5 × IQR = 20 - 1.5 × 11.75 = 2.375

The only data point below 2.375 is: 0.

The outlier is therefore: 0.

Learn more about IQR on:

https://brainly.com/question/4102829

#SPJ1

NEEP HELP ASAP! Will give 17 points! Math Question???
Men and women (ages 22−40) were surveyed to choose a favorite free-time activity: playing sports, dancing, or watching movies/TV.

The survey showed the following frequencies:
Men—playing sports: 11; dancing: 3; watching movies/TV: 6
Women—playing sports: 5; dancing: 16; watching movies/TV: 9

Which of the following is a correct two-way frequency table for the data?
(Screenshots below of all the answers!)

Answers

Women playing sports data chart is correct

Answer:

watching movies/TV

2r+8<16-2r and 7r+21>r-9

Answers

Answer:

r<2r>-5

Step-by-step explanation:

Subtract 8 from both sides.Simplify.Add 2r to both sides.Simplify. Divide both sides by 4.Simplify 8/4 to 2.

Subtract r from both sides.Simplify.Subtract 21 from both sides.Simplify.Divide both sides by 6.Then Simplify 30/6 to 5.

It cost $34 rent a PlayStation 4 for the week each game rental cost $10 written expression to represent the total cost of renting a PS4 and some games for the week then evaluate the expression if you were to rent four games games

Answers

the expression would be

34+10x

if they were to rent 4 games then the total cost would be 74

34+10(4)

34+40= 74

The person on the top is correct

Which expressions are equivalent to 35+30s−45t

Answers

Answer:

Simplify:

=35+30s+−45t

=30s−45t+35

Factor:

30s−45t+35

=5(6s−9t+7)

5(6s−9t+7)

Step-by-step explanation:

Can you give me Brainliest please

Fine the area of the trapezoid. Right answer gets brainliest!!

Answers

Step-by-step explanation:

use the formula to be able to find the area of the trapezoid

a = (a+b)÷2 × h

place the numbers into the formula

a = (30+17)÷2 × 22

solve

a = (47)÷2 × 22

a = 23.5 × 22

a = 517 m²



Pls help I made it 50 POINTS PLS HELP MEEE

Answers

Answer:

no 1 is true

Step-by-step explanation:

no2 also true. thank you

Number 1 is True
Number 2 is also True

helpppppppppppp plsses​

Answers

Answer:

y = 8x-3

Step-by-step explanation:

Jackson School is doing a fundraiser selling magazine subscriptions. The magazine publisher will pay the school a starting bonus of $500 and then $4 for each subscription sold. At the end of the fundraiser, the school is paid a total of $1360. How many subscriptions did they sell?

Answers

Answer: 215 subscriptions

Step-by-step explanation:

First, remove the starting bonus of $500 to find out the amount that was acquired from subscription sales:

= 1,360 - 500

= $860

The school is paid $4 for every subscription and they made $860 from this. The total number of subscription was therefore:

= 860 / 4

= 215 subscriptions

A triangle has the following lengths 4 cm 5 cm and 5 cm what kind of triangle is it

Answers

what are your choices?

I need the answer

Hdhehxjsvdis

Answers

I think it’s A,26,25

Find the equation of the line passing
through the points (4, 2) and (6,10).
y = [ ? ]x + [ ]

Answers

y=4x-14

(Y2-Y1)/ (X2-X1) = slope
y= Mx+b. M= slope B= y-int.

(10-2) / (6-4) = 8/2
=4

(4,2) -> choose one point then plug in

2 = 4(4)+b
2 = 16+b
b= -14

y= 4x-14

The equation of the line passing through the points (4, 2) and (6,10) is y=4x-14.

We have given the points (4, 2) and (6,10).

What is the formula for slope?

(Y2-Y1)/ (X2-X1) = slope

What is the slope-intercept form?

y= Mx+b. M= slope B= y-int.

(10-2) / (6-4) = 8/2

Slope=4

(4,2)  choose one point then plug in

2 = 4(4)+b

2 = 16+b

b= -14

To learn more about the slope visit:

https://brainly.com/question/3493733

#SPJ2

70:80 simplest form as a ratio

Answers

Answer:

7 : 8

Step-by-step explanation:

70 : 80 divided by 2 =

35 : 40 divided by 5 =

7 : 8

OR

70 : 80 divided by 10 =

7 : 8

[tex]

70:80 \\ = 78[/tex]

HELP ASAP I will mark brainliest if the answer is correct

Answers

Answer:

7- 50

8- 40

Step-by-step explanation:

Answer:

number 8 is 90 and number 7 is 50

Step-by-step explanation:

PLEASE HELPPP
Solve for x:
(3x−2)(x+7)=0

A) x=−23x=7

B) x=−23x=−7

C)x=23x=7

D)x=23x=−7

Answers

DI’m pretty sure it’s

Which expression simplifies to
-2/5 ?

A. -(1/2)×(-5/4)

B. -(1/2)×(-4/5)

C. -(-1/2)×(-5/4)

D. -(-1/2)×(-4/5)

Answers

Answer:

Answer: D)-(-1/2)×(-4/5)

7. Malik deposited
$1,050 in a savings
account, and it earned
$241.50 in simple
interest after four years.
Find the interest rate on
Malik's savings account.
I got 5.75 on a website but I need to show my work SOMEONE PLEASE HELP ME!

Answers

$352,590 is the interest rate on Malik’s savings account for four years

Ms. Stephanie bought a package of pencils. Out of every 10 pencils​, 2 are black. If there are 20 pencils in the​ pack, what fraction of the pencils in the pack are​ black? What percent of the pencils in the pack are​ black?

Answers

There would be 4/20 black pencils and the percent of black pencils is 20%
4 are black ... so 4/20 is 20%

NEED ANSWER FAST
(please explain!!!!)

Answers

Answer:

The left answer

Step-by-step explanation:

They are asking if their is a relationship between the x and y value

for the left one, when the value of y is shown to be the x value divided by 3 as

11/3 =11 over 3, 12/3 = 4, 13/3 = 13 over 3

But the right answer does not seem to have any correlation/relationship between its x and y values

The answer that starts with 11! Sorry if I’m incorrect

Which of these represents an integer?
a. -3 b. 4 c. 2 1/2 d. 6.2

Answers

Answer:

-3 & 4

Step-by-step explanation:

An integer is any whole number. It can be negative or positive.

can someone help me find the area of this ​

Answers

A=A1+A2
A1 is area of rectangular
A1=w • l
A1=4 •7
A1=28 in sq
A2 is area of right angle trapezoid
A2= b1+b2/2 • h
A2=7+5.3/2 • 6
A2=12.3/2 • 6
A2=36.9 in sq

A= 28+36.9
A= 64.9 in sq

I need help!!! Please help

Answers

Answer:

Step-by-step explanation:

so first

Answer:

your invers of operations are right and X = 7.5

Step-by-step explanation:

Please help on question 4.
(Questions 1, 2, and 3 have been answered.)

Answers

Answer:

Step-by-step explanation:

So, the longest tooth is 4 3/4 and the shortest is 3 1/4. So if you subtract 4 3/4 - 3 1/4, you will get the answer 1 2/4, which you can simplify to 1 1/2 or 1.5 :)

If I have 2 sticks of butter and I need 2/3 cup, how much of the first and second stick did I use?

Answers

Answer:

1 1/3 sticks

Step-by-step explanation:

PLEASE HELP!! it’s very confusing ‍♀️4 A triangle with vertices E(-9, 6), F(-6, -5),
and G(4,0) is dilated to form a triangle with
vertices E’l-3, 2), F'(-2, -13), and
G'(13,0). Which best explains the effect of
the scale factor applied to triangle EFG to form
triangle E'F'G'?
sed
d.

Answers

chickenkwktkwkrkkskrke

What is the significance of a dashed and solid line on an inequality function?

Answers

Answer:

Inequalities that use < or > symbols are plotted with a dashed line to show that the line is not included in the region. Inequalities that use ≤ or ≥ symbols are plotted with a solid line to show that the line is included in the region.

Answer:

An inequality function is something very odd or different

Step-by-step explanation:

im sorry if wrong

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