Mathematics High School

-4x -2y = -12
4x + 8y = -24

Answers

Answer 1

x= 6 and y= -6

Step-by-step explanation:

Answer 2

Answer:

x = 6, y = -6

Step-by-step explanation:

After adding the equations together, the 4x and -4x cancel each other out. This makes our new equation:

6y = -36

Divide both sides by 6

y = -6

Plug -6 into y in one of the equations

4x + 8y = -24   =

4x + 8(-6) = -24   =

4x - 48 = -24

Add 48 to both sides

4x = 24

Divide both sides by 4

x = 6

Related Questions

-5y + 31 = y – 11 plz give me the anser

Answers

-5y+31=y-11
-5y= -42 + y
-6y = -42
y = 7 :D

Use parentheses to show two ways of grouping the numbers in 12 • 8 • 25. Tell which expression you think would be easier to simplify, and why. Then simplify the expression.

Answers

Step-by-step explanation:

First no. is 12

Second no. is 8

Third no. of 25

Way 1 of grouping the numbers,

(12×8)×25

We can use associative law of multiplication as follows :

(a×b)×c = a×(b×c)

(12×8)×25 = (96) × 25

= 2400

Way 2,

12×(8×25) = 12 × 200

= 2400

Way 2 is easier to simplify because when we multiply 8 and 25, we get 200. It is very easy to multiply any number with a number that have zeroes. As a result we easily get the answer i.e. 2400.

Answer:

ionk

Step-by-step explanation:

Use the properties of logarithms
Rewrite the following in the form log(c).
5log(2)

Answers

Answer: [tex]5\log(2)=\log(2^5)[/tex]

Step-by-step explanation:

According to the properties of logarithms, we have

To rewrite : [tex]5\log (2)[/tex] in the form of log(c).

Therefore,

[tex]\leq 5\log(2)=\log(2^5)[/tex]   [[tex]\because\ n\log(m)=\log(m^n)[/tex]]

Hence, [tex]5\log(2)=\log(2^5)[/tex] .

Identify the range, What is the range?

Answers

Answer: 5 is the range.

Step-by-step explanation:

You have to subtract the lowest input number from the highest input number to find the range:

7 - 2 = ?

= 5

The range is 5.

I hope I helped and have a great day! ^-^

Please help me im very depressed and im struggling a lot on my math and i really need some answers


Which sequence shows the numbers in order from least to greatest?

Answers

Answer:

C

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

-2.45 times 10 squared is -245 while square root of 93 is 9.643650761 so 6.387 is the smallest then square root of 93 then -2.45 times 10 squared.

The sum of two consecutive odd integers is 150. what are the two integers ?

Answers

Answer:

75..............................

A 4-cup bottle of soda costs $5.64. What is the price per pint?

Answers

Answer:

2.82

Step-by-step explanation:

A pint is two cups, and 5.64 divided by 2= 2.82

- ( x - 10 )² = -121 solve by using the square root property

Answers

Answer:

You would get 789BX

Step-by-step explanation:

Use a calculator

Answer:

x = 21, -1

Step-by-step explanation:

i used a math w a y

PLEASE HELP 60 POINTS
The table represents the linear function f(x), and the equation represents the linear function g(x).

Compare the y-intercepts and slopes of the linear functions f(x) and g(x) and choose the answer that best describes them.


x f(x)
0 1
2 4
4 7

g(x) = 2x + 1
The slope of f(x) is less than the slope of g(x). The y-intercept of f(x) is equal to the y-intercept of g(x).
The slope of f(x) is greater than the slope of g(x). The y-intercept of f(x) is equal to the y-intercept of g(x).
The slope of f(x) is less than the slope of g(x). The y-intercept of f(x) is greater than the y-intercept of g(x).
The slope of f(x) is greater than the slope of g(x). The y-intercept of f(x) is greater than the y-intercept of g(x).

Answers

Answer: Its most likely C

Step-by-step explanation:

I think

Answer:

c

Step-by-step explanation:

c

which expression is equivalent to 8x-12y+32

Answers

Answer:

2x-3y+4

Step-by-step explanation:

greatest commln factor is four so divide everything by four

Answer:

umm where are the option i will give you an answer but i dont see any option

Step-by-step explanation:

4(2x-3yplus8)


You bought 5 chocolate bars and 8 blow pops for $23.25. Your sister bought 2 chocolate bars and 13 blow pops for $21.55. How much did each chocolate
bar cost? Each chocolate bar cost?

Answers

Answer:

Cost of each chocolate bar  = $2.65

Cost of each blow pop  = $1.25

Step-by-step explanation:

Let x = Cost of chocolate bar

y= Cost of blow pops

We can make system of equations and find value of x and y

You bought 5 chocolate bars and 8 blow pops for $23.25.[tex]5x+8y=23.25[/tex]

Your sister bought 2 chocolate bars and 13 blow pops for $21.55. [tex]2x+13y=21.55[/tex]

Let:

[tex]5x+8y=23.25--eq(1)\\2x+13y=--eq(2)[/tex]

Multiply eq(1) with 2 and eq(2) with 5 and subtract

[tex]10x+16y=46.5\\10x+65y=107.75\\- \ \ \ - \ \ \ \ \ \ - \\------\\-49y=-61.25\\y=\frac{-61.25}{-49} \\y=1.25[/tex]

So, value of y = 1.25

Putting value of y in eq(1) to find value of x

[tex]5x+8y=23.25\\5x+8(1.25)=23.25\\5x+10=23.25\\5x=23.25-10\\5x=13.25\\x=13.25/5\\x=2.65[/tex]

Value of x = 2.65

So, Cost of each chocolate bar = x = $2.65

Cost of each blow pop = y = $1.25

I neeeeedd heeeellppp!!!

Answers

Answer:

y  ≤ 0

Step-by-step explanation:

im 99% sure this is correct

hope this helps <3

Click on the measurements that is equal to 144 ounces

Answers

Answer:

its 9

Step-by-step explanation:

144 ounces to pounds is 9

The little town fine arts center charges $24 per adult and $14 per senior citezen for its performance. On recent weekend evening when the number of seniors was 167 more than the number of adults who paid admission, the total receipts were $8722. How many who paid were senior citizens

Answers

Answer:

Step-by-step explanation:

The little town fine arts center charges $24 per adult and $14 per senior citezen for its performance. On recent weekend evening when the number of seniors was 167 more than the number of adults who paid admission, the total receipts were $8722. How many who paid were senior citizens

188 is 150% of what number?

Answers

1 Answer


Don't Memorise
Feb 16, 2016
The number
=
125.33
Explanation:
Let the number be denoted as
x
:
As per the question:
188
=
150
%
×
(
x
)
188
=
150
100
×
(
x
)
188
×
(
100
150
)
=
x
125.33
=
x
It is 282

Hope this helps

Have a happy holidays

Eight times a number increased by nine is the same as 15 more than 7 time the number.Find the numbers​

Answers

Answer:

the number is 6

Step-by-step explanation:

8x+9=15+7x

8x-7x+9=15+7x-7x

x+9=15

x+9-9=15-9

x=6

Answer:

the answer is 6.

I found the answer by:

8x+9=15+7x

8x-7x+9=15+7x-7x

x+9=15

x+9-9=15-9

x=6

Hope this helps, have a blessed day/night, stay safe, happy holidays, and merry christmas!


What are the steps to find the slope and y-intercept of the equation 16x - 4y = -32?

Answers

Answer:

slope = 4

y-intercept = 8

Step-by-step explanation:

First convert the equation into the form

y = mx + c

where m is the slope, and c is the y intercept

16x - 4y = -32

16x + 32 = 4y

4y = 16x + 32

y = 4x + 8

m = 4

c = 8

Answer:

Slope = 4

Step-by-step explanation:

16x - 4y = -32

-16x .        -16x

-4y = -32 - 16x

/-4 .      /-4

y = 8 + 4x

waht is this plz help ​

Answers

Answer:

The answer is 10 and 37 degrees.

Step-by-step explanation:

Triangle angles add up to 180.

I hope this helped and if it did I would appreciate it if you marked me Brainliest. thank you and have a nice day!

Plz help plzzz this is due today just plz help me and I will give brainliest

Answers

Answer:

18(2+3)

1.375 liters

Step-by-step explanation:

GCF is 18.

18(2+3)

2.5-1.125 which is 1.375

Hope this helps Merry Christmas!

PLEASE HELP!! ILL GIVE BRAINLIEST

Answers

Answer:

Its SSS because we know that MN=HJ and MQ=HC

Step-by-step explanation:

2=4 in MN=HJ

5=10 in MQ= HC

In a sale the price of a sofa is reduced by 70%. The price is £255 Work out the price before the sale

Answers

Answer:

850

Step-by-step explanation:

850*0.3=255

Consider the line y= -1/2x+5

What is the slope of a line parallel to this line?
What is the slope of a line perpendicular to this line?

Answers

Answer:

Step-by-step explanation:

For a line to be parallel, it needs to have same slope so the slope is -1/2 for parallel.

The slope for perpendicular is the negative reciprocal so 2.

A number plus its opposite is called the
Property. *
O Additive Inverse
Commutative
Associative
Distributive

Answers

Answer:

The answer is the first one - Additive Inverse.

Kwamee created a coffee blend for his cafe by mixing Kona beans and Fuji beans. Kona beans cost $11 per pound and Fuji beans cost $7.50 per pound. He mixed a total of 23 pounds of coffee beans and spent a total of $197.

Write a system of equations that can be used to determine how many pounds of Kona and Fuji beans Kwamee bought.

Solve the system of equations to determine how many pounds of Kona and Fuji beans Kwamee bought.

*Show both the equations and the solution.

Answers

Let's use K for Kona and F for Fuji. The system of equations has to be a balanced system. For example, you can't mix the number of pounds of beans with the cost for each because pounds and dollars are different and you can only combine like terms...pounds with pounds and dollars with dollars. So let's start with the number of pounds. Since we don't know how much of each he bought we have the 2 unknowns, F and K, but we DO know that he bought 23 pounds total. So the first equation is
K + F = 23
Now let's see what we can do with the dollars. Again, we don't know how much he bought of each kind of coffee, but we do know that Kona beans cost $11 per pound and that Fuji beans cost $7.50 per pound, and we know that he spent a total of $197. So let's set that up:
11K + 7.50F = 197
Those are your 2 equations. It doesn't say you need to solve them, so you're done.

2 (x + 5) = } (x – 4)?
Help

Answers

Answer:

X= -14

Step-by-step explanation:

So we can first simplify the equation

2x+10=x-4

Now just solve i normally

x+10=-4

x=-14

So x is -14

Find 12% of 1,046 ????????

Answers

12 percent = 12/100 = 0.12
1,046 * 0.12 = 125.52
Solution: 125.52

Yay so, Which one of these answers is part of pi?
5.6
3.14
2.89
7.77
None of these



(I know the Swansea but y’all fill in the blank to this phot lol anything goes its not meant to be dirty answers tho) lol

Answers

Answer:

3.14

Step-by-step explanation:

Because pi equals to 3.14 and more numbers

Solve for x
....................

Answers

Answer

go to the website symbolab math solver

Step-by-step explanation:

Use Cymath it works really good

Best answer gets brainliest hurry ASAP

Answers

enter your answer in the box

Alex has 235 candies. He wants to place the candies in five equal groups. How many candies will Alex place in each group?
A.47
B.30
C.81
D.20

(help,by the way its a math test and i need help with this question)

Answers

Answer:

A.47

Step-by-step explanation:

Step-by-step explanation:

235 / 5 = 47

Hence there are 47 candles in each group (A).

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