Mathematics High School

8x - y = 42
-4x - 6 = y

Answers

Answer 1

Answer:

8x-(-4x-6)=42

8x+4x+6=42

12x=42-6

12x=36

x=36/12

x=3

substitute in an equation of your choice

8(3)-y=42

24-y=42

24-42=y

-18=y

Step-by-step explanation:

Answer 2

Answer:

x= 4 y= -10

Step-by-step explanation:

8x - y = 42

-4x - 6 = y

rearrange -4x - 6 =y to -4x -y = 6

8x - y = 42

-4x - y = 6

4x = 48

48/4 = 12

x=4

subsitute x with 4 adn solve for y = -22

y= -10

Related Questions

So, I need to evaluate 1/2n + 1/6 when n = 1/3.​

Answers

Answer:

1/3

Step-by-step explanation:

First, plug in n to the equation

1/2(1/3)+1/6

Now multiply 1/2*1/3

1/6+1/6

Simplify

2/6-->1/3

Hope this helps!

Answer:

1/3

Step-by-step explanation:

1/2n + 1/6

1/2(1/3) + 1/16

1/6 + 1/6

What is 9+x>16 please

Answers

it would be x>7
because 16-9 is 7

PLEASE HELP WILL GIVE THE CROWN!!!
Find the length of the line segment NQ.

Answers

The length of NQ would be 15 centimeters

Help I only have 15 minutes

Answers

Answer:

central angle is COA

inscribed angle is CBA

angle COA=100 degrees

angle ABC=50 degrees

arc AC=100 degrees

Step-by-step explanation:

Solve :8x + 12y for x = 2 and y = 3

Answers

Answer:

8x+2y

8(2)+2(3)

8 multiply 2 = 16

2 multiply 3 = 6

16+6= 22

Step-by-step explanation:

Christina has 50 pennies. Every day, she gives Marcus a penny. The number of pennies Marcus has is represented by the function y=x+50 , where x represents the number of days a penny is exchanged. Once you determine Christina's function using the same x , how would you compare both functions?

Answers

Answer:

5

Step-by-step explanation:

Daniel is 12
3
4
years old. Carl is 1
3
8
years younger than Daniel and Jane is 1
1
5
years younger than Carl. How old is Jane?

Answers

tiene 981 años

Step-by-step explanation:

A)
Huy is solving a quadratic equation by completing the square. His first few steps (steps 1-4) are
shown below. Which of the following statements is true regarding Huy's work?
Given
2² +32-5=0
step 1
Solution
z2 + 3 = 5
step 2
2? + 3x +9 = 5 +9
step 3
(x + 3) = 14
I= -3/14
step 4

Answers

Answer:

This question has errors.

Debra pumped 2 gallons of water into her pool each minute for 10 minutes. Whag was ths total change in the amount of water in the pool ​

Answers

20 gallons of water in the pool

Answer:

There would be 20 gallons in her pool

Step-by-step explanation:

Can somebody help me outtt ?? pleaseee

Answers

Answer:

nope sorry I don't know this answer

I I would be knowing I surely tell you

really sorry

Jim had a collection of 24 state quarters. He poured 10 of them onto the table and noticed the years that the quarters were produced,
as shown below.
2004, 2006, 2009, 2003, 2001, 2001, 2006, 2006, 2004, 2003
Assuming that the sample was representative of the collection, what was the mode of the year that the quarters were produced?

Answers

Answer:

2006

Step-by-step explanation:

you would subrwct them

pls help thank you !!!

Answers

Answer:

p=5g+2h

2h=p-5g

h=(p-5g)/2

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

we just need h to be by itself (and posotive)

p-2h=5g

p-5g=2h

(p-5g)/2=h

B

I just need the answer for c) pls help :(

Answers

Answer:

Step-by-step explanation:

sorry if its not the best, i don't know how to say the cords sorry. have a good rest of your day or night!

write this phrase as an expression: a number d multiplied by 3

Answers

Answer:

id k :)

Step-by-step explanation:

36m+16 (no spaces in your answer
Factor and Expand

Answers

uh..? im dead lol PLS

whats the equation of the line in fully simplified slope-intercept form?pls help me

Answers

Answer:

y=-x+2

Step-by-step explanation:

the slope is change in y over change in x and as y goes down one x goes over one

the y intercept is at (0,2)

Which postulate proves the two triangles
congruent?
Account


SAS

SSS

AAS

ASA

Not congruent

Answers

Answer:

HL

Step-by-step explanation:

PQ = PR     {hypotenuse}

PS = PS      {Reflexive property, PS is the leg of the both triangles}

∠PSQ = ∠PSR = 90

So, HL postulate

Olivia has five bracelets and three necklaces. She wants to choose one bracelet and one necklace randomly. How many possible outcomes are in this sample space?

Answers

Answer:

15 possible outcomes

Step-by-step explanation:

Given: Olivia has five bracelets and three necklaces.

She chooses one bracelet and one necklace randomly.

To find: Number of possible outcomes in a sample space

Solution:

Sample space denotes a set of all possible outcomes.

Number of possible outcomes in a sample space = [tex]\binom{5}{1}\binom{3}{1}[/tex]

Use [tex]\binom{n}{1}=n[/tex]

Therefore,

Number of possible outcomes in a sample space = [tex]\binom{5}{1}\binom{3}{1}[/tex] = [tex]5(3)=15[/tex]

The difference of a number c and 17 is more than 33.

Answers

Answer:

c-17=x>33

c=51

Step-by-step explanation:

The value of number c should be greater than 50.

It is given that difference of a number c and 17 is more than 33.

We have to find out the value of number c.

What do you mean by algebraic expressions ?

The algebraic expressions are those which are made up of variables, constants and algebraic operations i.e., addition, subtraction, etc.

As per the question ;

The difference of c and 17 is more than 33.

i.e.,

difference of c and 17 meant ; 17 should be subtracted from c and this is greater than 33.

i.e.,

c - 17 > 33

c > 33 + 17

c > 50

Thus , the value of number c should be greater than 50.

To learn more about algebraic expressions click here ;

https://brainly.ph/question/20786412

#SPJ2

Which of the following equations would be parallel to the line x = 3?

1. y = 3x

2. y = 1

3. y = x

4. x = 5

Answers

Answer:

4. x = 5

Step-by-step explanation:

For two lines to be parallel they must have the same slope, but not be the same line. Both x=3 and x=5 both have slopes of 0, so they are parallel. Another way to tell is that x=3 is a vertical line; therefore, it will be parallel to any other vertical line, such as x=5.

The last answer is correct... x = 5

Brett works at a local pet store. When he works 5 hours he earns $25. When he works 10 hours he earns $50. What is the rate per hour?
Select one:

$25 per hour

$50 per hour

$5 per hour

$10 per hour

Answers

Answer:

$5 per hour

Step-by-step explanation:

25/5 = 5

10*5 = 50

3) If y varies directly as x, and x = 4 when y=1/10, write the the direct
variation equation in the form of y = kx. A.2D*

Answers

Answer:

I think it is y= 3x

Step-by-step explanation:

shen buys candy that costs $4 per pound he will spend at least $20 on candy what are the possible numbers of pounds he will buy

Answers

5 pounds because 4 x 5 = 20

Solve the equation |4m| − 5 = 11.

Answers

Answer:

Please refer to the attachment

ASAP my sister said this is impossible to solve and if I solve I get 20 bucks
8(x-3)+7=2x(4-17)
solve for x

Answers

x = negative 9 over 8

add answer:

step-by-step:

Determine if 0.734862... is Rational or Irrational

Answers

Arational it has 0 for the startStep-by-step explanation:

Scott makes and sells bracelets. He spends $28 on supplies, and he sells
each bracelet for $6. Write an expression that represents his profit for
selling b bracelets.

Answers

Hi there,

Recall how each bracelet sells for 6 dollars.

Hence, the expression for selling b bracelets is 6b, where b is the number of bracelets sold for the price of 6 dollars.

Profit is the actual amount of money that is earned after you subtract expenses from the total sales.

For instance, if you make $100 from selling items, and you spent $25 on your supplies, then your profit is [tex]100-25=75[/tex].

In this case, you need to subtract the $28 spent on supplies from the amount of money that you have made, which is the expression 6b.

Hence, the expression for the profit is: [tex]6b-28[/tex]

Hope that helps.

simplify the expression 3(y-5)+2y

Answers

Answer:

    5 − 15

Step-by-step explanation: Distribute: 3(−5)+ 2 , 3 − 15 + 2

Combine the like terms: 3 − 15 + 2 5 − 15

hope that helped

The
leng
X+6
long
Kevin had a total of 160 minutes to read,
do homework, and play video games.
He spent x minutes reading
He spent 2(x+7) minutes doing
homework
He spent 35 minutes playing video
games.
How many minutes did Kevin spend
reading?


Answers

Answer:

49

Step-by-step explanation:

Brainiest answer to whoever is correct

Answers

Answer: x= 25

Step-by-step explanation:

Vertical angles are equal. Set these equal to each other to solve. 7x-18 = 6x+ 7. Add 18 to both sides. 7x = 6x + 25. Subtract 6x from both sides. X=25

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