Help please!
solve the system of equations using elimination.
X-Y=3
2x+2y=50

Answers

Answer 1

Answer:

abcdefg

Step-by-step explanation:

Answer 2

Answer:

x = 14

y = 11

Step-by-step explanation:

x - y = 3

2x + 2y = 50

multiplty x - y = 3 by two so we can get an equal value

2x - 2y = 6

2x + 2y = 50

-2y and 2y can be cancled out. That means we don't need to change any signs and we can add everything exept 2y and -2y becuase they will be cancled out.

4x = 56

Divide each side by 4 to leave x alone.

x = 14

Now that we know the x value, take one of the equations in the question and plug it in. I am going to use the equation x - y = 3 to make it easier.

14 - y = 3

-y = 3 - 14

-y = -11

y = 11

Now we know that y = 11.

I hope this helps!


Related Questions

9. The two figures below have a scale factor of 3 : 2. What is the value of x?

Answers

C I think hope this helps

The value of x can be found by setting up a proportion based on the given scale factor of 3:2 is 16/3 units.

The breadth of the first parallelogram is 8 and the breadth of the second parallelogram is x.

Setting up the proportion, gives:

8/3 = x/2.

To solve for x,  cross-multiply:

[tex]8 \times 2 = 3 \times x.[/tex]

Simplifying the equation, gives:

16 = 3x.

Next, divide both sides of the equation by 3 to isolate x:

x = 16/3.

Therefore, the value of x is 16/3.

Learn more about proportions here:

https://brainly.com/question/31548894

#SPJ6

In order for a park to open, there have to be more than 2536 tickets sold in advance.
​Write an inequality to represent how many tickets can be sold so that the park will open.

Let t represent the number of tickets

Answers

Answer:

you would have to add 2536 to how many tickets you have left.

Step-by-step explanation:

Answer:

add 2536 to how many tickets you have left.

Step-by-step explanation:

Hope this helped have an amazing day!

Can someone pls describe how to do this.. and thank you

Answers

Mathematics includes the study of such topics as quantity, structure, space, and change. It has no generally accepted definition. Mathematicians seek and use patterns to formulate new conjectures; they resolve the truth or falsity of such by mathematical proof.

Step-by-step explanation:

Mathematics is the study of numbers, shapes and patterns. The word comes from the Greek word "μάθημα" (máthema), meaning "science, knowledge, or learning", and is sometimes shortened to maths (in England, Australia, Ireland, and New Zealand) or math (in the United States and Canada). ... Numbers: how things can be counted.

Therefore, Mathematics is the abstract study of topics such as quantity (numbers), structure, space, and change!

Answer:

x + 14 = 5x - 74

x - 5x = -4x

-74 - 14 = -88

-4x = -88

-4x/4 = -88/-4

x = 22

Step-by-step explanation:

The steps above are how you would evaluate a problem like that!

Hope this helps!!

HELP ME PLEASE I WILL GIVE BRAINLIEST

Answers

Answer:

Donalds Donut shop

Step-by-step explanation:

There are cheeper because it might be more money but

there is more donuts and it is 0.59 cents per donut at Donald's but it is 0.73 cents per donut at Donut co.

Donald’s donut shop because the price per donut is $0.59 while sunrise donut co. is $0.73 per donut. You can find the price per item by dividing the price by how many items there are. Ex: 5.84/8=0.73

It order of operations can someone help me

Answers

Answer:

-3

Step-by-step explanation:

-3^2 +(-4+7)(2)

PEMDAS

paranthesis first

-3^2 + (3)(2)

exponents next

-9 + (3)(2)

-9 + 6

-3

Please Help!!!! No "positive vibes" answers please!! :( Please write a detailed explanation of your answer! Best one gets brainliest!!!!

Answers

Answer:

bad vibes and i cant see the png

Step-by-step explanation:

Cant see the png ........

−15x−40=23−8x
What does x =

Answers

Answer:

x = -9

Step-by-step explanation:

-15x - 40 = 23 - 8x  

Add 8x to both sides

-15x + 8x - 40 = 23

          -7x - 40 = 23

Add 40 to both sides

                - 7x = 23 + 40

                  -7x = 63

 Divide both sides by (-7)

            x = 63/-7

x = -9

Answer:

x = -9

Step-by-step explanation:

-15x - 40 = 23 - 8x

add 8x to both sides to bring -8x to the left side

-15x + 8x - 40 = 23

add 40 to both sides to bring -40 to the right side

-15x + 8x = 23 + 40

add the common terms

-7x = 63

for x to be alone divide -7 to both sides

x = -9

I hope this helped!

Plsss helppp i rlly need help with this math!!!

Answers

14. 11.2 13. 150 hope this helps

Answer:

13.150

14. 11.2

Step-by-step explanation:

Have a good day :)

What decimal is equivalent to 3%?


a
3.0
b
.003
c
.3
d
.03

Answers

the answer is d, have a good day

Answer:

D

Step-by-step explanation:

Percent is out of a hundred.

3%=3/100 which is .03

2) slope and y-intercept, i need help ASAP plz plz

Answers

Answer:

slope: 8.75 y intercept: 0

Step-by-step explanation:

Im not certain, but i think the equation would be y = 8.75x. I dont think there is a y intercept because she doesnt have any money to start with

237,421 rounded to the nearest thousandth
324.3472 rounded to the nearest hundredth
129.9521 roundeded to the nearest tenth

Answers

Answer:

1. 237.40

2.  324.35

3.   130.0

Step-by-step explanation:

remember when the number next to the number BEING rounded,, 5 or more let it soar(goes to the next number) 4 or less let it rest (means it will be a 0)

1. Is 237,000
2. Is 324.35
3. Is 130.0000

Ethan’s cookie recipe uses 3 cups of sugar to make 21 cookies. Mia’s recipe uses 4 cups of sugar to make 24 cookies. Who's recipe has more sugar per cookie?

Answers

Alright, so ethan’s cookies would be 21 cookies per 3 cups of sugar. So you would do 21/3 to find you get 7 cookies per one cup of sugar

Then Mias cookies are 24 cookies per 4 cups of sugar. You would do 24/4 to get 6, so 6 cookies per cup of sugar.

Mia’s cookies make less cookies per cup of sugar, so they’d have more sugar in them.

Mia- 6:1
Ethan- 7:1

What is the slope of the line that contains these points? PLZ PLZ PLZ PLZ PLZ PLZ PLZ PLZ PLZ PLZ PLZ PLZ PLZ PLZ PLZ HELP

Answers

Answer:

choose two points. (13, 11) and ( 14, 6)

use the slope formula (y2-y1)/(x2-x1)

and then plug it in and solve

(6 -11)/ ( 14-13)

-5/ 1

the slope is -5

Step-by-step explanation:

I hope this helps :)

On the map below, city p and city q are 5.5 centimeters (cm) apart. What is the actual distance between city p and city q? 2cm= 35 miles

Answers

Answer:

96.25

Step-by-step explanation:

5.5/2=2.75

2.75x35=96.25

Ok so 2cm = 35 miles
Meaning ONE centimeter is 35/2, or, 17.5 miles of actual distance
And half, or 0.5 of a centimeter is 17.5/2 or 35/4, which is 8.75 miles
5 centimeters is 2 + 2 + 1 + 0.5
(35 miles) plus (35 miles) plus (17.5 miles) plus (8.75 miles) which would add up to be 96.25 miles

Combine like terms to create an equivalent expression.
-1/2(-3y+10)

Answers

Answer: 3/2y - 5

Step-by-step explanation:

Answer: 3/2y-5

Explanation:

-1/2(-3y+10) distribute the -1/2

-1/2(-3y) = 3/2y

-1/2(10) = -5

3/2y - 5

A cell phone company charges $60 a month for up to 1 gigabyte of data. The cost of individual data is $0.35 per megabyte. If d represents the number of additional gigabytes, and c represents total charges at the end of the month, which linear equation can be used to determine a users monthly bill?

Answers

c=60+0.05d

Hope this helps :)

Create your own scenario for a system of equations and solve it. Please do not just write two equations, but apply what you have learned and write your own possible real-world situation.

Answers

Answer:

Dr. Potter provides vaccinations against polio and measles.

Each polio vaccination consists of 444 doses, and each measles vaccination consists of 222 doses. Last year, Dr. Potter gave a total of 606060 vaccinations that consisted of a total of 184184184 doses.

How many polio vaccinations and how many measles vaccinations did Dr. Potter give last year?

Step-by-step explanation:

Answer:

Dr. Potter provides vaccinations against polio and measles.

Each polio vaccination consists of 444 doses, and each measles vaccination consists of 222 doses. Last year, Dr. Potter gave a total of 606060 vaccinations that consisted of a total of 184184184 doses.

How many polio vaccinations and how many measles vaccinations did Dr. Potter give last year?

For each babysitting job, Adam charges a fee for his bus fare plus an hourly rate.
The graph shows how he calculates the cost of a babysitting job.
Drag numbers to complete a linear function in terms of x and y to model the situation.
Numbers may be used once, more than once, or not at all.
PLEASE I NEED HELP ASAP!!!!
You get 87 pointss please help meee

Answers

Answer:

Can you add more to it because this does not make sense if they numbers are already on the chart what numbers can we use

Step-by-step explanation:

Answer:

y = 6x + 2

Step-by-step explanation:

I'm a math expert. If I helped you, give me brainliest.

Write an addition expression using integers to describe this situation. Then find the sum.

Roger owes his mom $5. He borrows another $6 from her.

Answers

Answer:

-5+6=

Sep-by-step explanation:

A new seven – story apartment building is opening in our town. I was curious when I read the apartments on the higher floors were more expensive, so I went to the open house.

I discovered that there is only one very large apartment on the top floor. Each floor has twice as many apartments as the floor above it. The lowest floor contains only one-room studio apartments which are very small.

How many apartments are in this new building?

Find the generalized formula that would tell me how many apartments would be in this building if it had “X” stories?

Answers

its x=42

Step-by-step explanation:

none

The sum of a number, x, and the opposite of another number, y, is 66. The difference of x and y is also 66. Find x and y.

Answers

Answer:33

Step-by-step explanation:33 each you have to divide I’m pretty sure I’m so sorry if I’m wrong

33!!
hope it is right

it costs $3.45 to buy 3/4 lb of chopped walnuts. how much would it cost to purchase 7.5 lbs of walnuts?

Answers

Answer:

$6.75 I THINK

Step-by-step explanation:

I struggled to figure this out and I'm pretty sure its $6.75 but im not sure :(

I think 6.45 too
:)

Ben bought 2 shirts for $16 each, 3 pairs of socks for $2.50 a pair, and a pair of jeans for $37.75. If the sales tax rate is 6.5%, how much did he pay for his items, including tax?
$127.46

$92.81

$82.27

$59.91

Answers

Answer:92.81

Step-by-step explanation:

Answer:

$82.27

Step-by-step explanation:

First, figure out how much it would be without tax.

(2*16=32) + (3*2.50=7.50) + 37.75 = 77.25

Then, multiply this number by your tax rate.

77.25*6.5 = 5.02

Lastly, add your original total with this tax amount for your answer.

77.25+5.02= 82.27

PLEASE ANsWer THiS
Question in picture ⬇️

There are two

Answers

Answer:

dude you have complicated questions

Step-by-step explanation:

Help plss

Mae ling earns a weekly salary of $325 plus a 6.5% commission on sales at a gift shop. How much would she make in a work week if she sold $4,800 worth of merchandise?

Answers

Answer:

is this have picture so I solve

Picture mate? XDDDDDDDDDDDD

The Hendersons went on a driving vacation. They decided to travel 1/3 of the distance on the first day. Owing to bad weather, they had to stop for the night having gone only 1/4 of the distance to the one-third point.
What fraction of the total distance did they travel the first day? Show your work and reduce to lowest terms.


Howie works at a petting zoo. He fed a piglet 1/5 of a bottle of milk, then gave 3/4 of what was left to a calf.
How much of the bottle of milk did the calf drink? Show your work and reduce to lowest terms.

Nathan used 2(5/6) loaves of bread to make sandwiches for a lunch. He made equal numbers of 4 different types of sandwiches.
What fraction of a loaf of bread did Nathan use for each type of sandwich?

Answers

Answer:

A)

[tex]\displaystyle \frac{1}{12}[/tex]

B)

[tex]\displaystyle \frac{3}{5}[/tex]

C)

[tex]\displaystyle \frac{17}{24}[/tex]

Step-by-step explanation:

Part A)

The Hendersons were traveling 1/3 of the distance on the first day.

However, they had to stop, having only traveled 1/4 of the 1/3 distance.

So, we can multiply the two fractions together.

Therefore, the fraction of the total distance they traveled is given by:

[tex]\displaystyle \frac{1}{4}\times\frac{1}{3}=\frac{1}{12}[/tex]

The Hendersons traveled 1/12 of the total distance.

Part B)

We are assuming the bottle of milk was full at the beginning.

So, at the beginning, there were 1/1 bottle of milk left.

Howie fed a piglet 1/5 of the bottle. So, there is now:

[tex]\displaystyle 1-\frac{1}{5}[/tex]

Of the bottle left.

Making common denominators and subtracting yields:

[tex]\displaystyle =\frac{5}{5}-\frac{1}{5}=\frac{4}{5}[/tex]

So, after feeding the piglet, 4/5 of the bottle of milk was still there.

3/4 of the remainder was fed to a calf.

So, the amount that was fed to the calf is 3/4 times 4/5. Therefore:

[tex]\displaystyle \frac{3}{4}\times\frac{4}{5}[/tex]

Multiply:

[tex]\displaystyle =\frac{12}{20}=\frac{3}{5}[/tex]

So, the calf drank 3/5 of the bottle of milk.

Part C)

Nathan used 2 (5/6) loaves of bread to make 4 sandwiches.

First, convert 2 (5/6) to an improper fraction. So:

[tex]\displaystyle 2\frac{5}{6}=\frac{12+5}{6}=\frac{17}{6}[/tex]

Nathan made 4 sandwiches using this. So, we will divide this by 4. Note that this is the same as multiplying by 1/4. Therefore:

[tex]\displaystyle \frac{17}{6}\times\frac{1}{4}=\frac{17}{24}[/tex]

So, Nathan used 17/24 loaves of bread per sandwich.

pleasee help find the equation

Answers

Answer:

Step-by-step explanation:

Iii

Answer: i dont even know?

Step-by-step explanation:

Evaluate the expression |12| ÷ 2 x |-5|

Answers

Answer:

The answer is 30

Step-by-step explanation:

The answer is 30......

Daniel decides to use the method of proportions and similar
triangles to find the height of a tower. He measures the length of the
tower's shadow and finds it is 72 feet long. Then he holds a 12-inch
ruler perpendicular to the ground and finds that it casts an 24-inch
shadow. How tall is the tower?
a. 3 ft c. 36 ft
b. 4 ft d. 144 ft

Answers

Answer:

The answer is B

Step-by-step explanation:

Answer:

It's C.

Step-by-step explanation:

Have a good day.

What is the slope of the line that contains these points?

Answers

Answer:

8

Step-by-step explanation:

-1+1=0 and

10+8=18 so

8/1=8

The answer would be 8
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