Mathematics High School

Solve this system of equations
3x+4y=36
y= -1/2x+8

x=
y=

Answers

Answer 1

Answer:

x = 4

y = 6

Step-by-step explanation:

3x + 4y = 36

3x + 4(-1/2x + 8) = 36

3x - 2x + 32 = 36

x + 32 = 36

x + 32 - 32 = 36 - 32

x = 4

y = -1/2x + 8

y = -1/2(4) + 8

y = -2 + 8

y = 6

Related Questions

Find the slopes form two points (1, -2) and (3,-4)

Answers

Answer:

y=-x-1

Step-by-step explanation:

if points are (-1,-2) and (3,-4)

Answer:

slope intercept form:  y = -1/2x - 5/2  or  y = -0.5x - 2.5

The table below represents a function. Which of the following equations could be its function rule?

Answers

Answer:

it's the 3rd choice, Y= -3x

Rewrite the function f(x)=4(x-2)²-8 in the form f(x)=ax²+bx+c.

Answers

Answer:

4[tex]x^{2}[/tex]-16x+8

Step-by-step explanation:

4(x - 2)(x - 2) - 8 = 4([tex]x^{2}[/tex] - 4x + 4) - 8 = 4[tex]x^{2}[/tex] - 16x + 16 - 8 = 4[tex]x^{2}[/tex] - 16x + 8.

Answer:

[tex]f(x) = 4x^2 -16x + 16[/tex]

Step-by-step explanation:

f(x)=4(x-2)² Simplify.

f(x) = 4x^2 - 16x + 16

Form f(x)=ax²+bx+c.

f(x) = 4x^2 - 16x + 16

Solve for y
y - 2 = 2x

Answers

Answer:

y = 2x + 2

Step-by-step explanation:

Add two to both sides.

How are 3/6 and 4/8 equivalent? Just the fractions.

Answers

because half of 6 is 3 and half of 8 is 4 . what i means by this is that they are both half of something . hope that helps

Answer:

Step-by-step explanation:

3/6 = 1/2 and 4/8 = 1/2 so they are equal because 1/2 = 1/2

HELP!!! Please I have a timer

Answers

The probability on club is 1 in 7. It is higher than expected

What is true about the area of a circle given radius r, a rational number?
O Area of the circle is equal to its circumference.
O Area of the circle is irrational.
None of the above.
O Area of the circle is rational,

Answers

Good luck on the quiz!

Answer:

b

Step-by-step explanation:

What percent of 120 is 42?
can you show your work, please

Answers

Solution for 42 is what percent of 120:

42:120*100 =

(42*100):120 =

4200:120 = 35

Now we have: 42 is what percent of 120 = 35

Question: 42 is what percent of 120?

Percentage solution with steps:

Step 1: We make the assumption that 120 is 100% since it is our output value.

Step 2: We next represent the value we seek with $x$x​.

Step 3: From step 1, it follows that $100\%=120$100%=120​.

Step 4: In the same vein, $x\%=42$x%=42​.

Step 5: This gives us a pair of simple equations:

$100\%=120(1)$100%=120(1)​.

$x\%=42(2)$x%=42(2)​.

Step 6: By simply dividing equation 1 by equation 2 and taking note of the fact that both the LHS
(left hand side) of both equations have the same unit (%); we have

$\frac{100\%}{x\%}=\frac{120}{42}$
100%
x%​=
120
42​​

Step 7: Taking the inverse (or reciprocal) of both sides yields

$\frac{x\%}{100\%}=\frac{42}{120}$
x%
100%​=
42
120​​

$\Rightarrow x=35\%$⇒x=35%​

Therefore, $42$42​ is $35\%$35%​ of $120$120​.
It’s 35%

42/120 = 0.35

0.35 x 100 = 35%

what is (14x - 2) - (11x -21) ​

Answers

Answer:

3x + 19

I don't have time to explain but I hope I helped :)

Find an answer to your question Using the triangle drawn below, determine the exact value of y. 45° trigonometry !

Answers

Step-by-step explanation:

hope this helps you

thank you

help please .........

Answers

Answer: .

Step-by-step explanation:

Hi you can answer this it is difficult for me​

Answers

9514 1404 393

Answer:

  see attachments

Step-by-step explanation:

a) A table lists the ordered pairs either by row or by column. In the attached, we have listed the x-values down a column, and the y-values the same way. (This way, we can use the same list for the map.) The table is the first attachment.

__

b) A graph is simply a plot of the given points. The graph is the second attachment.

__

c) A map is similar to a table, but with arrows pointing to the output value for a given input. The map is the third attachment.

A 5-pint bottle of oil costs $9.20. What is the unit price for 1 pint of oil?

Answers

Answer:

$3.20, help this helps. lmk if it doesn't help

Answer:

$1.84

why do I have to write 20 characters

This graph shows which inequality?


d > 5

d ≥ 5

d ≤ 5

d < 5

Answers

Answer:

d > 5

Step-by-step explanation:

The circle is open which means there is no line underneath the sign, the way the arrow is facing is the same way the sign should be facing.

escribe el número que corresponda a la escritura polinomica 8x10³+4x10²+0x10¹+9x10⁰​

Answers

Answer:

8409 es 8×10³ es 8 4×10² es 4 0×10¹ es 4 9×10⁰ es 9

Sally puts $2,500 in a bank account. She takes it out 10 years later and with interest, now has $4,100. What is the percent change?

Answers

Answer:

64%

Step-by-step explanation:

Find the percent change by finding the difference between the amounts, then dividing it by the original amount

(4,100 - 2,500) / 2,500

1600 / 2500

= 0.64

So, the percent change is 64%

2 ways that you can write 2%?

Answers

Answer:

2/100 and .02

Step-by-step explanation:

Answer:

0.02 and 2/100

Step-by-step explanation:

These two are some of the more simple ways to write 2%

simplify the following expression by combining like terms. select the most simplified Expression 2 W + 5 W - 6 + 4w ​

Answers

Answer:

11w-6

Step-by-step explanation

2w+5w-6+4w=7w+4w-6=11w-6

The answers..............................

Answers

The answer is A and D your welcome :)
A and d that easy my guy

How to solve and answer please.

Answers

Answer:

sin 77°

cos 49°

tan 22°

Step-by-step explanation:

use your calculator with trig functions to find the arcsin, arccos, and arctan

Which triangle makes this statement true?

Answers

Answer:

D

Step-by-step explanation:

they need the same angle measures and side lengths to be congruent. also you need to line up the angles of the same measure in each triangle in the name

Answer: D

Step-by-step explanation:

What’s the value of x

Answers

Answer:

C: X = 42

Step-by-step explanation:

Find each part to the triangle first

X = 42 so that is ur answer

I’ll love u forever if u can help me with this ASAP PLZZZZ ;)

Answers

Answer:

the answer is A

Step-by-step explanation:

Because

Multiply the first equation by 2  

6x-y=18

Both side multiply 2

12x-2y=36

And then subtract the second equation form the result,

12x-2y=36

4x+2y=26

16x=62

x=3.8

please help i feel like im dying i will give out brainliest and points thank you

Answers

Answer:

I feel like the answer would be 10

Step-by-step explanation:

because if its same size it would be 14 but then u add the 2 to 2x u get 4 then x is the rest of 14 I'm farely sure if someone else can verify this then this is the answer

please help!!! Im very confused, giving brainleist

Answers

Answer:

For the boys box, the answer is 8.

For the Girls top box the answer is 18.

Step-by-step explanation:

81/ 72=1.125

9/ 8=1.125

18/16=1.125

Hope this helps! :)

The function f(x) = 350 - 125x represents how
many miles f(x) the helicopter is from its destination
after x hours.
a. f(1) = 225, interpret this value in terms of context.

Answers

After one hour, the plane is 225 miles from its destination

Answer:

The helicopter is 225 miles from its destination and will reach the destination in 1 hr.

Step-by-step explanation:

I need help.................

Answers

Answer:

-33 and -21

Step-by-step explanation:

-36, -33, -30, -27, -24, -21, -18

-36

-36 + 3 = -33

-33 + 3 = -30

-30 + 3 = -27

-27 + 3 = -24

-24 + 3 = -21

-21 + 3 = -18

from 45 quarts to 8 quarts​

Answers

Answer:

well the answer would be 37 but I dunno what u mean by that.

Step-by-step explanation:

if this is right please mark brainliest

Answer:

you are -ing 37 quarts from 45

Step-by-step explanation:

The library started the yoar with 14,341 books. At the end of the first week
1456 books had been checked out. At the end of the second week 3,298
books had been checked out and 2,192 books had been returned. How many
books were in the library at the end of the second week?

Answers

Answer:

the answer is 11788 :) your welcome

trigonometry help me for 25 points plz

Answers

Answer:

46

Step-by-step explanation:

Segment WX = 23 by the 30 60 90 triangle theorem which states that the longer leg is sqrt3 times the length of the shorter leg.

Segment XY = 26 by the 30 60 90 triangle theorem that states the hypotenuse is twice the length of the shorter leg

Other Questions
Will mark brainliest if someone answers this Why might different types of fossils be found in rock layers that come before and after a rock layer that contains no fossils? WILL GIVE BRAINLIEST Which of the following sentences is an example concerns smerne might have at lunchtime?I would be to have brocoll stead of fres,I wonder if my chicken is ooked all the wayI have never ordered smething I did not ke,of ordered a salad with the dressing on the site Given y = 2(x-3) and a domain of (-3,-2 and 5). Find the range. A cone has a radius of 24 cm and a volume of 1920 cm3. What is the volume of a similar cone with a radius of 18 cm? ________was an international terrorist group formed by Osama bin Laden, with the purpose of opposing non-Islamicgovernments with force and violence.-Al Qaeda-Shiltes-Taliban-Jihad Rewrite the sum as a product of two factors: 2x + (5 + x) + 5 * 2. * (you have to add sensory detail to the sentence and then right what the sound, smell, and sights are in the new sentence.)1. Boring Sentence: English class is fun. Sensory details added: ______________________________________________________________ _________________________________________________________________________________ _________________________________________________________________________________ Sights: ______________________________Sounds: _____________________________ Smells: ______________________________ What were the causes and consequences of United States westward expansion? What would be a disadvantage to using a globe rather than a map when leA. A globe focuses on more than just the United States.B.A globe is less accurate in scale than a map.OC.A globe cannot show as many details as a map can.OD.A globe is very easy to damage accidentally. help pleaseee thank you Why was the Sedition Act, signed into law by President John Adams in 1798, controversial?AThe act restricted Americans freedom of speech.B)The act restricted Americans Freedom of religionC)The act established the first US military draftDThe act established the first nationa baro 4.65 rounded to the nearest whole Question 3 of 10Which of these is not part of a vocabulary cube?A. The word used in a sentenceB. A synonym for the wordC. A word pictureD. A phonetic spelling of the word Explain the steps used to find the solution.3(2y + 5) = -216y + 15 = -216y = -36Y= -6 12x - 2/3 = 83 1/3 12x=?x=? 8x+7x+5+4= 39 pls help quickly How did the slave trade contribute to the creation of the style of dance we call samba today? PLEASE HELP ME, 20 POINTSHow many atoms are in 25.00 g of Li.Question 1 options:2.393 x 1024 atoms of Li1.333 x 1023 atoms of Li2.16 x 1026 atoms of Li2.17 x 1024 atoms of LiHow many grams is 2.393 x 1024 atoms of ClQuestion 2 options:70.45 g Cl140.9 g Cl140.9 mole Cl70.45 mole ClHow many atoms are in 25.00 g of B.Question 3 options:1.393 x 1024 atoms of B1.333 x 1023 atoms of B2.16 x 1026 atoms of B2.17 x 1024 atoms of BHow many grams is 2.393 x 1024 atoms of OQuestion 4 options:70.45 g O140.9 g O63.58 mole O63.58 g O