5x + 2y = -10
3x + y = 66

please show work

Answers

Answer 1

Answer:

x=142, y=-360. (142, -360).

Step-by-step explanation:

5x+2y=-10

3x+y=66

----------------

5x+2y=-10

-2(3x+y)=-2*66

-----------------------

5x+2y=-10

-6x-2y=-132

-------------------

-x=-142

x=142

3(142)+y=66

426+y=66

y=66-426

y=-360

Answer 2

Answer:

1- 5x+2y+−2y=−10+−2y

5x=−2y−10

[tex]\frac{5}{5}[/tex]= [tex]\frac{-2y-10}{5}[/tex]

x= [tex]\frac{-2}{5}y-2[/tex]

2-  3x+y+−y=66+−y

3x=−y+66

[tex]\frac{3x}{3} = \frac{-y+66}{3}[/tex]

[tex]x=\frac{-1}{3}y+22[/tex]

Step-by-step explanation:

This is the answers :)


Related Questions

4. 1/3(3y - 6) = 8 i need the answer to this please​

Answers

1/3 (3y - 6) = 8

distribute: y - 2 = 8

add 2 to both sides: y = 10

10

Answer: y=10

Step-by-step explanation: 1 /3 (3y−6)=8

( 1 /3 )(3y)+( 1 /3 )(−6)=8

y+−2=8

y−2+2=8+2

y=10

For which value of m is start fraction 4 over 16 end frction equals start fraction m over 24 end fraction a proportion? A. m = 6 B. m = 8 C. m = 12 D. m = 14

Answers

Answer:

A. M=6

Step-by-step explanation:

Basically, this question is asking you to find m if 4/16 = m/24.

First, 4/16 can be simplified to 1/4. This will make it easier to solve.

You now have 1/4 = m/24.

Multiply both sides by 24 to get 24/4 = m.

Simplify to get m = 6.

V70





Estimate the square root of the number below to the nearest tenth

Answers

8.4 hope that helps
It’s 777777777777777222222222.000002020202020202202020202020

need help please will give brainliest

Answers

Answer:

y=1/5x+7

Step-by-step explanation:

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Answers

Answer:

A C D

Step-by-step explanation:

Unit rate examples:

70 miles / 1 hour

$1.10 / 1 pound

32 heartbeats / 1 minute

Unit rate will always have 1 as a denominator when put into a ratio. All answers except B have 1 as the rate.

Answer:

what elephant house said I was to late

Step-by-step explanation:

HELP I NEED HELP ASAP

Answers

Answer:

i think its; there  all inequalities

Step-by-step explanation:

A new tv costs 1500, a salesperson makes 3.25% commision for every sale, how much would the salesperson make for 1 tv sold.

Answers

Answer:

48.75

Step-by-step explanation:

The salesmen makes a commission of 3.25%. So to get the percent into a usable form for this take 3.25 and divided by 100. You get 0.0325.

Now you take the 0.0325 and mutliply it by the 1500. This gives you 48.75

Which of the following is an equation with ONE solution?

A
2x = 2x + 18

B
2x - 10 = 2(x - 5)

C
5(x + 3) + x

D
2x + 5= 11 - 4x

Answers

D is the answer. I hope this helps!

help will make brainliest ​

Answers

Answer: The answer is B

mrs. kelly asked her students to plot the number of books they read over summer. Using the dot plot, how many students answered the question?

Answers

Answer:

18

Step-by-step explanation:

Add all the dots. 2+1+3+2+6+3+1=18

is palpatine the strongest sith

Answers

Answer:

One may think that he is the most powerful Sith Lord, and on some levels this is correct, but that title falls to another, even more powerful Sith Lord. That is Jar Jar Binks. He possesses the power to wipe out entire universes without blinking an eye. Jar Jar is an entity that was here before the universe was created. He made God. He even made Shaggy in his image so that he could have a set of eyes on Earth. He needed a right hand man to corrupt humanity at its source. Some might say that Jar Jar is the true form of evil, but I refute that claim with an argument of my own. Jar Jar Binks may have destroyed countless lives, but he did so in order to keep the balance of the universe, and for that, I thank him. All hail Jar Jar.

 Step-by-step explanation:

Identify the slope in the equation y= x - 2

Answers

Answer:

The slope-intercrept from y is = mx+b, where m is the slope and b is the y-intercrept

Step-by-step explanation:

y=x-2

there are 21 colored balls sindhu took 4/7 rosey took 1/7 and ritesh took 2/7 who took the least numbers of balls​

Answers

Rosey took the least
Rosey
Answer in the photo

Please help me with this

Answers

Answer:

1 h 30 minuutes

Step-by-step explanation:

[tex]1.5 \: hr = 1 \: hr + 0.5 \times 60 \: min \\ \\ = 1 \: h \: 30 \: min \\ \\ [/tex]

Answer:

1.5 Hrs x 60 minutes = 90 minutes

1 hour 30 minutes

Please look at the picture below to answer.

Answers

Answer:

x=67

Step-by-step explanation:

subtract 90 because those are right angles from 23 and you get 67

find the percentage of 0 ratio 7

Answers

Step-by-step explanation:

ratio - 0:7

in percentage=0÷7×100

24 is 3/4% of what number

Answers

24 is 3/4 of the number 32

Answer:

32

Step-by-step explanation:

Alright, so think of the "what number" as x in this case. (Or any number/symbol you choose.)

So our simple equation looks something like this:

[tex]24= x *\frac{3}{4}[/tex]

So, to find out what the "what number" would be we'd flip the fraction around/find the reciprocal and multiply 24 by it. That gives us "x" or the number we're missing.

So: [tex]24 * \frac{4}{3} = x[/tex]

Doing the simple math we get:

[tex]24 * \frac{4}{3} = 32[/tex].

32 is your answer.

Hope this helps and have a nice day! Sorry I'm not great at explaining it!


The diagram below models the diameter of the bicycle wheel
21.75
Which of the following is closest to the distance of the length when the bicycle wheel
makes 1 revolution?
A7 inches
B 25 inches
C34 inches
D69 inches


Can anyone help me!!

Answers

Answer: (21.75 / 2) * 2 * pi = 68.42...in, answer D.

Explanation: one revolution from a wheel will be a 360 degree rotation, meaning that if you had laid your finger on the outside of the wheel as it made its full rotation, your finger would have touched the entire circumference of the wheel. Thus, we can represent the length of 1 revolution as the circumference. Thus we take the diameter, and divide it by 2 to get the radius. Then we simply multiply by 2 * pi * r (r = radius). This is the formula for the circumference of a circle.

HELP PLS

Juanita has rectangular 3 cards that are 5 inches by 9 inches. How can she arrange the​ cards, without​ overlapping, to make one larger polygon with the smallest possible​ perimeter? How will the area of the polygon compare to the combined area of the ​3 cards?

Answers

Answer:

Connect the sides of the cards that are 7 in  long.

Step-by-step explanation:

Im working on this rn XD

Have a Nice day :)

Solve by Substitution:
3x-2y = 4
y = -2x + 5


YALL PLZ HELP ILL DO ANYTHING

Answers

Answer:x=2

Step-by-step explanation:

3x-2(-2x+5) = 4

3x + 4x - 10 = 4

7x-10 = 4

7x = 14

x = 2

y = -2(2) + 5

y = -4 + 5

y = 1

(x,y) = (2,1)

The width of a rectangle varies inversely with its length. if the width is 4 when the length is 18, find the width when the length is 8.

Answers

Answer:

the answer is 16

PLS HELP ILL GIVE BRAINLIEST!!

Answers

Answer:

y = -7/2x - 7

Step-by-step explanation:

let me know if you need the steps . . .

The dots in the diagram are 1 unit apart. What is the longest segment that can be drawn between two of the dots without
intersecting another dot in the diagram?
A)
1
B)
2
Vs
D)
2/2

Answers

Answer:

the correct answer is C) √5

Step-by-step explanation:

What is the value ( 1.6 x -0.25) x 4 to the second power

Answers

Answer:

2.56

Step-by-step explanation:

( 1.6 x -0.25) x 4= -1.6

(-1.6)^2 = 2.56

what's 4/6 in decimal form

Answers

0.66666667 is the answer

what is 3 3/5 + 6 3/10

Answers

Answer:

18/5 or 3 3/5

Step-by-step explanation:

Perform the following conversion.
123 cm to m

Answers

Answer:

1.23 meters

Step-by-step explanation:

divide it by 100..

123/ 100 = 1.23 m

Answer:

1.23 m

Step-by-step explanation:

divide the length value by 100

hi please help. I will really appreciate it!

Answers

Answer:

sorry but it is not clear pleas take a more clear pic

Step-by-step explanation:

................................

***Please help me with this*** please late work i will be happy and will be 14 points!!

What is the major difference between a communicable and non-communicable disease?

1. Communicable diseases can spread from person to person. Noncommunicable diseases cannot spread.

2. Noncommunicable diseases can spread from person to person. Communicable diseases cannot spread.

3. Noncommunicable diseases are caused by bacteria. Communicable diseases are caused by viruses.

4. Communicable diseases are caused by bacteria. Noncommunicable diseases are caused by viruses.

Answers

Answer:

Step-by-step explanation:

The main difference between communicable disease and non-communicable disease is that Communicable diseases are those diseases that can spread from person to person, whereas, non-communicable diseases are those which do not spread and are non-contagious. Communicable Disease v s.

Communicable diseases are those that are contagious but generally short-lived. Noncommunicable diseases are not contagious and can’t spread to other people; these are chronic illnesses. While communicable diseases are caused by pathogens such as bacteria and viruses, noncommunicable diseases are generally due to genetics and lifestyle.

Answer:

I believe your answer is     1. Communicable diseases can spread from person to person. Noncommunicable diseases cannot spread.

Step-by-step explanation:

Communicable diseases are the diseases which passes from one individual to another individual. They are generally caused by some bacteria, viruses or any other pathogens. For example, malaria, AIDS etc. Non-communicable diseases are the diseases which does not spread from one person to another person.

A new bank customer with ​$4,000 wants to open a money market account. The bank is offering a simple interest rate of 1.2​%.

a. How much interest will the customer earn in 30 ​years?
b. What will the account balance be after 30 ​years?

Answers

Answer:

Interest: $1440

Total Account Balance: $5440

Step-by-step explanation:

First, converting R percent to r a decimal

r = R/100 = 1.2%/100 = 0.012 per year,

then, solving our equation

I = 4000 × 0.012 × 30 = 1440

I = $ 1,440.00

The simple interest accumulated

on a principal of $ 4,000.00

at a rate of 1.2% per year

for 30 years is $ 1,440.00.

The simple Interest is $1440 and the total Account Balance: $5440.

What is simple interest?

Simple interest is calculated just on the loan's principal amount, whereas compound interest is calculated on both the principal and the cumulative interest.

First, converting R percent to r a decimal,

r = R/100 = 1.2%/100 = 0.012 per year,

Then, solving our equation,

I = 4000 × 0.012 × 30 = 1440

I = $ 1,440.00

The simple interest accumulated,

on a principal of $ 4,000.00

at a rate of 1.2% per year

for 30 years is $ 1,440.00.

Therefore, the simple Interest is $1440, and the total Account Balance: $5440.

To know more about simple interests follow

https://brainly.com/question/2294792

#SPJ2

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