3х + 4y = - 23
х = 3y+1
Solve systems of equations!

Answers

Answer 1

Answer:

[tex]3(3y + 1) + 4y = - 23 \\ 9y + 3 + 4y = - 23 \\ 9y + 4y = - 23 - 3 \\ \frac{13y}{13y} = \frac{ - 26}{13} = - 2[/tex]


Related Questions

a num

A retailer purchased a photocopy machine for Rs 1.60,000 from a dealer. Helshe

spent Rs 2,500 for transportation and Rs 1,500 for the local tax. If he/she sold it at
a profit of Rs 6,000 to a customer, how much did the customer pay for it with 13%
VAT?

b number

A supplier sold a machine levying 13% VAT on Rs 3,20,000 to a retailer. The

retailer spent Rs 10,000 for transportation and Rs 5,000 for the local tax. If the
retailer sold it at a profit of Rs 15,000 to a customer, how much did the customer
pay for the machine with 13% VAT?​

Answers

Answer:

answer is rs 192100ra 395500

x−5.2=−18.73


Need

Help

Answers

Answer:

-13.53

Step-by-step explanation:

x=-13.53

Hope it helped

2 questions…
1. order the intergers {-10, -25, 25, 10, -50} from least to greatest.
2.what is the area of the rectangle?
(image provided for both questions, thank you!)

Answers

Answer:

1) (-50) <(-25) < (-10) < 10 < 25

2) 150 in^2

Step-by-step explanation:

For the first question we list the numbers according to their sign(start from negative)

For the second question we multiply height with width to find the area of the rectangle.

Question :-

1. order the intergers {-10, -25, 25, 10, -50} from least to greatest.

2.what is the area of the rectangle?

Answer:-

1.

we know that,

negetive numbers are smaller than positive number,

According to the question,

order the intergers {-10, -25, 25, 10, -50} from least to greatest is:-

[tex]\bold{(-50) <(-25)<(-10)<10<25  }[/tex] 

2.

we know that,

Area of rectangle =length ×breath

According to the question,

lenght=15 inbreadth=10 in

[tex]\bold{Area=15×10   }[/tex] 

[tex]\bold{Area=150~in^{2}   }[/tex] 

Which equation represents a line that is a perpendicular bisector to the line joining the points A(3,-4) and B( 5 , -2)?
1. y +4 = -1(x -3)
2. y + 3 = -1(x - 4)
3. y -1 = 3(x - 4)
4. x + y = -1

Answers

Answer is third......

Question 5

Maria can bake 35 cookies in of an hour. How many cookies can
she make in 4 hours?

Answers

Answer:

140

Step-by-step explanation:

just mutiply 35 by 4, thats h0w i g0t it anyways, h0pe this helped :)

Answer:

its 140 in 4 hours

Step-by-step explanation:

hope this helps!


When a number increased by 4 is doubled, the result is the same as whe the number is increased by 20. Find the number
You MUST answer all of the questions below to get full credit. Please take
• Show your setup (how would it look on a Balanced Scale?)
• What does X equal?
• Check:

Answers

Answer:

X = 12

Step-by-step explanation:

When a number increased by 4

Let that number = x

x + 4

is doubled...

2(x + 4)

the result is the same

=

when the number is increased by 20

x + 20

Find the number

2 (x + 4) = x + 20

2x + 8 = x + 20

2x - x = 20 - 8

x = 12

What does X equal? X equals 12

Check:

Insert the x = 12 into the equation;

2 (x + 4) = x + 20

2 (12 + 4) = 12 + 20

2 (16) = 12 + 20

32 = 32

Reasons why each one of those don't belong​

Answers

Answer:

Because if you give the power of 2 to all of them you get a different number

1. 20 squared+ 21 squared = 841

Answer to number 1

1) 20+21 =41. Since 20^2+21^2 both have ^2 on top. The ^2 would stay the same. So that means the answer would be 41^2 for the first one which is why it is incorrect

2)Same for this. 4^2+5^2= 9^2


3)a^2+b^2 = ab^2 because since a and b are different letters/variables you cannot combine them therefore it is just ab.


4) (-1)^2 = 1 because -1 multiply by -1 again you would get positive 1. Next you do 1+0^2 = 1. Because 0^2 is just 0 because 0times 0 =0 so 1+0 = 1

PLEASE HELP!!!!!!!!!!!!
Monique and Tyrel were born on the same day. On the day they turned one year
old, Monique’s parents opened a savings account for her that earned 10% interest
per year. Starting that day, Monique’s parents put $100 in her account every
year on her birthday, stopping just after she turned six. After that, the money
remained in the account but Monique’s parents did not put in any more money.
Tyrel’s parents opened a similar savings account for him, however it wasn’t until
the day he turned six years old. Starting that day, his parents put $100 in his
account each year on his birthday, earning 10% interest per year.
Complete the two given tables to find the total amount of money in Monique’s
and Tyrel’s savings accounts. Who had the better saving strategy over 15 years?
For simplicity, round the interest to the nearest dollar for each year.

Answers

Answer:

i want the answer to

Step-by-step explanation:

Solve this system by Linear Combination (Elimination)
2.
2y = 4x + 18
-6x + 3y = 27
3

Answers

They result in the same equation

rewrite it:

2y = 4x +18

3y = 6x + 27

divide so that you have only y

y = 2x + 9

y = 2x + 9

Timothy bought groceries two days during the week: • Timothy purchased $11.25 worth of groceries and paid $12.15 after taxes on Monday • Timothy paid $59.13 after taxes on a purchase of groceries that cost $54.75 on Friday Which equation models the relationship between the cost of groceries after taxes, and the cost of groceries before taxes?​

Answers

Answer: See explanation

Step-by-step explanation:

You didn't give the options but let me help out.

Timothy purchased $11.25 worth of groceries and paid $12.15 after taxes on Monday.

We would solve this using direct proportion.

y = kx.

12.15 = 11.25k

k = 12.15 / 11.25

k = 1.08

Timothy paid $59.13 after taxes on a purchase of groceries that cost $54.75 on Friday.

y = kx.

59.13 = 54.75k

k = 59.13 / 54.75

k = 1.08

The equation that models the relationship will be:

y = 1.08x

PLEASE HELP WILL GIVE BRAINLIEST!!!! Write an equation in standard form of the line that passes through the given points. (-2,-1),(-4,-6).

Answers

Answer:

If its in parobola form here is your answer

Step-by-step explanation:

y=5(x+1/5)^2-26/5

Ms. Anderson deposits $7,000 into a savings account that pays a simple interest of 2% per year. Which of the following would be the total amount in her savings account at the end of 3 years?

Answers

Answer:

$7,428.46

Step-by-step explanation:

A = 7000(1 + .02)³

A = 7000(1.02)³

A = 7000(1.0612)

A = $7,428.46

A train travels 240 miles in 6 hours. At this rate, how far could the train go in 13 hours?

Answers

Answer:

Step-by-step explanation:

520 miles

Draw the graphs of the lines below on the same grid to find the coordinates of the point of
intersection.
y = x
y = 3x - 4

Answers

Answer:

(2,2) is the solution of the given lines.

Step-by-step explanation:

Given that,

y = x ..(1)

y = 3x-4 ...(2)

We need to find the coordinates of the point of intersection.

From equation (1) and (2).

x=3x-4

4 = 3x-x

4 = 2x

x = 2

Also,

y = 2

Hence, the coordinates of the point of  intersection is (2,2).

what are the first 5 terms of 30-n^2

Answers

Answer:

29, 26, 21, 14, 5

Step-by-step explanation:

To find the first 5 terms, substitute n = 1, 2, 3, 4, 5 into the n th term formula.

30 - 1² = 30 - 1 = 29

30 - 2² = 30 - 4 = 26

30 - 3² = 30 - 9 = 21

30 - 4² = 30 - 16 = 14

30 - 5² = 30 - 25 = 5

The first 5 terms are 29, 26, 21, 14, 5

during a fundraiser ms dowsons class raised $560 which is 25% more than mr caseys class raised. Mr caseys class raised how much money

Answers

Answer: It's 585 i read it wrong sorry

Step-by-step explanation:

solve the questions it is direct and indirect variations

Answers

Answer:

v = $312.5

Step-by-step explanation:

Let

Value of the gem stone = v

Weight of the gemstone = w

v = k * w²

Where,

k = constant of proportionality

w = 4 carat

v = $200

v = k * w²

200 = k * 4²

200 = k * 16

200 = 16k

k = 200/16

k = 12.5

Find v when w = 5 carat

v = k * w²

= 12.5 * 5²

= 12.5 * 25

= 312.5

v = $312.5

(8.3)
(2,3)
Need help please

Answers

Answer:

AB = 6 units

Step-by-step explanation:

Given A(8, 3 ) and B(2, 3 )

Since the y- coordinates in both points are 3 then this is a horizontal line.

The length of AB is then the difference of the x- coordinates, that is

AB = 8 - 2 = 6 units

Question 2
A stereo that regularly costs $429.99 is on sale for 35% off. How much money will be discounted from the regular price? (Round to the nearest hundredth)
Your answer:
$35
$150.50
$394.99

Answers

Answer:

$150.50.

Step-by-step explanation:

The full price of the stereo is 429.99 which is 100%, the sale is 35%.

100 - 35 = 65%

100% = 429.99

1% = 429.99 ÷ 100 = 4.2999

35% =4.2999 x 35 = 150.4996

Estimated to 150.50

Which fraction model best represents 3 2/6??

Answers

Answer:

A

Step-by-step explanation:

3x 2/6 is 1 and if you put all the shaded blocks together for A, you will get 1 whole

What is the measure of angle x? Show or explain how you know.

Answers

Answer:

65 degrees

Step-by-step explanation:

y is a right angle and a is 30 degrees. this means that the supplementary engle of x is 45 plus 70 which is 115. 180-115 = 65 degrees.

The dimensions of a rectangular building used to store tools for electrical lineman has a length of 12x+24 feet and the width of 20x-10 feet.

1.Write the expression that represents the area of the building, in terms of x.
2. Write the expression that represents the perimeter of the building, in terms of x.
3. If the perimeter is going to be 220 feet, what are the dimensions of the building.

Answers

Answer:

a) Area = 2x² + 3x - 2

b) Perimeter = 64x + 28

c) Length = 60 feet and Width = 50 feet

Step-by-step explanation:

It is given that:

Length of building = 12x + 24

Width of building = 20x - 10

Area = Length * Width

Area = (12x + 24) * (20x - 10)

Area = 12x(20x - 10) +24(20x-10)

Area = [tex]240x^2-120x+480x-240[/tex]

Area = [tex]240x^2+360x-240 = 2x^2+3x-2[/tex]

Perimeter = 2 (Length + Width )

Perimeter = 2 (12x + 24 + 20x - 10 ) = 2 (32x +14 )

Perimeter = 64x + 28

Putting Perimeter = 220

220 = 64x + 28

64x = 220 - 28

64x = 192

Dividing both sides by 64

x = 3

Length = 12(3) + 24 = 36 + 24 = 60 feet

Width = 20(3) - 10 = 60 - 10 = 50 feet

Therefore,

a) Area = 2x² + 3x - 2

b) Perimeter = 64x + 28

c) Length = 60 feet and Width = 50 feet

On Monday, Jack and Jill walked from their home up a hill to get to the bus stop. They walked 4 yards every 3 seconds.

Write an equation to represent the distance, d, Jack and Jill walked over time, t

Answers

Answer:

zd mngchvbm vhgfcnvmbfgv bkgjfdsfzxcbvnm,jlhfxgcvbnm,.mn.bvcxzvbnm,./mjmhgnfbdvcdvfbghj,k.l/k.jhgfdghjkl;jhgfdsghjkljhgfdhjklhgfdfsghjkklhgfdhjkklhgyftdfgfhjklkhgfdsghjklkkhgyftdfsgfhjkkhhtgf

Step-by-step explanation:

explain why 1/6 hour + 1/3 hour =1/2 hour​

Answers

Answer:

1/6+1/3

=3+6/6×3

=9/18

=1/2

Step-by-step explanation:

Hope you find this helpful!

Answer: It does because 1/3 is equal to 2/6. in order to add them, they have to have the same denominator. and if you add 2/6 to 1/6, you get 3/6. 3/6 is also equal to 1/2, if you divide both sides by 3.

Step-by-step explanation:

helpppppppppppppppppppppp meeeeeeeeeeeeeee

Answers

Answer: b

Step-by-step explanation: because five hunderedths is bigger than nine hundredthe which is not equal

please give me brainLYEST I really need it please give me I beg you

The sum
of three consecutive integers is - 126. What are the integers?

Answers

Let the three consecutive integers be x , x+1 ,x+2
Given, sum of three consecutive integers = -126
x +x+1+ x+2 = -126
3x +3 = -126
3x = -126 -3
3x = -129
x = -129/3
x = - 43
x +1 = -42
x +2 = -41

For the following equation, write two more equations, using
:-11 + x=7
Type your answer here...

Answers

Answer: 88

Step-by-step explanation:

you divied and add

88 gotta divide and add

Lisa takes a loan for $ 5000 from the bank. Every month the bank charges her 1 % interest on the
money she owes and adds this amount to her outstanding balance. If Larissa never makes a
payment, how much will she owe the bank after 1.5 years?

Answers

Answer 900

Step-by-step explanation:1% of 5000 is 50 1.5 years is 18 months 50 times 18 is 900

Given: RST, RS = 15, ST = 20, and TR = 29
Which inequality correctly compares the measures of the angles of RST?

Answers

Answer:

can i see a picture?

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

Answers

Answer:

H

Step-by-step explanation:

use slope of -2/3 and point (-4.5, 10) as input into the slope-intercept form of a line, which is y = mx + b

10 = -2/3(-9/2) + b

10 = 3 + b

7 = b

y = -2/3x + 7

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