Mathematics High School

−3x−9y=18
4x+3y=12
​what is x and y

Answers

Answer 1

Answer:

x = 6 and y = -4 or (6,-4)

Step-by-step explanation:

Related Questions

The polynomial h(x) = (x+3)(x + 1)(x - 2)(.– 4) has the following zeros/roots:

Answers

Answer:

The roots(zeros) are :x=-3,-1,2,4

Step-by-step explanation:

The answer is A.

Phil received a prize of x dollars from a poker tournament. The tournament cost him $100 to enter. What were phil's net winnings from the tournament?

Answers

Answer:

x-100

Step-by-step explanation:

Phil is using the money he had won from the tournament to pay for the entry cost. So x-100

In an animal shelter, the ratio of dogs to cats is 5 to 3. There are 25 dogs. Write and solve a proportion to find
the number of cats at the shelter.

Answers

Answer:

15 cats

Step-by-step explanation:

HELP I NEED HELP ASAP

Answers

Im going to say c because if you were to draw a straight line inbetween the dots the line would be possible

If are AC is 122 degrees and arc BC is 192 degrees, what is the measure of angle ACB

Answers

ACB = AC + BC

ACB = 122 + 192 = 314

The answer is b. 314 degrees

What is the value of x if 5x + 45 = 35?
Select one:

10

-2

-10

2

Answers

Answer:

x= -2

Step-by-step explanation:

Simplifying 5x + 45 = 35 Reorder the terms: 45 + 5x = 35 Solving 45 + 5x = 35 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-45' to each side of the equation. 45 + -45 + 5x = 35 + -45 Combine like terms: 45 + -45 = 0 0 + 5x = 35 + -45 5x = 35 + -45 Combine like terms: 35 + -45 = -10 5x = -10 Divide each side by '5'. x = -2 Simplifying x = -2

Helppppp I’ll mark you brainlist

Answers

Answer:

-243

Step-by-step explanation:

Since your finding the 36th term and you know the equation plugin 36(as n) into the arithmetic sequence.

-7(36)+9 = -243

1
Select the correct text in the table.
Consider the following expression.
-102 + 5 + 3
2.12 + 4
Select the true statements.
The numerator has 3 terms.
The denominator includes a coefficient of 4.
The denominator includes a coefficient of 2.
The numerator has 2 terms.
The numerator includes a coefficient of 3.

Answers

Answer:

first and third statements

Step-by-step explanation:

Nicole kicked the ball 57 feet tyrel kicked the ball 35 feet. How much farther did Nicole kick the ball than tyrel?

Answers

Answer: Nicole  Kicked the ball Father by  22feet than Tyrell

Step-by-step explanation:

Nicole kicked the ball 57 feet

Tyrel kicked the ball 35 feet

Nicole  Kicked the ball Father by = 22feet

This is gotten by subtracting the distance Nicole kicked from that of Tyrel

=57 feet - 35feet = 22feet

When you find 36 is 42% of what number, what are you looking for?​

Answers

Answer:

dezzzz nuts

Step-by-step explanation:

im eating poop

358.41 x 10^5 in standard form

Answers

Answer:

35841000

Step-by-step explanation:

358.41 times 100000 = 35841000

Answer:

35841000

Step-by-step explanation:

A triangular pyramid has a base area of 24 square meter and heigh of 4 meters. what is the volume

Answers

Answer:

96 meters

Step-by-step explanation:

Volume means length x width x height and since it has already found the length and width, you multiply that by 4. So, 24 x 4 = 96

Answer:

32

Step-by-step explanation:

so volume =1/3 area of base times hieght that would be

1/3*96

32

what is the value of x?

Answers

Answer:

probs too late, but i think the answer is x=12

Step-by-step explanation:

the angles should add up to equal 180

180-36=144

144=8x+4x

144=12x

now divide by both sides to isolate x

12=x

u can check by plugging in ofc, 36+(8x12)+(4x12)=36+96+48=180

:)  hope this helps

1. Gina has a circular gold bracelet with a diameter of 3 inches. She wants
to cover the bracelet with a strip of lace. How long should the strip of lace
be to cover the bracelet entirely without any excess? Use 3.14 for tt
O a. 4.71 in
O b.7.065 in
O c. 9.42 in
O d. 15.22 in

Answers

C=2pier
C= 2 • 3.14 • 1.5 (radius if 1/2 of diameter)
C= 9.42

Hope that helps!

Answer:

C= 9.42

Step-by-step explanation: Usa test prep

Please last question need help! Will give Brain

Answers

I got 15 but that isn’t an option. When the triangle is scaled down the angles should stay the same. 180-(50+115)=15

Lisa is making her famous chocolate chip brownies. The recipe calls for 2 cups of chocolate chips, but Lisa can only find her LaTeX: \frac{1}{4}1 4 measuring cup. How many LaTeX: \frac{1}{4}1 4 cups will she need to get the 2 cups needed for her recipe?

Answers

Answer:

I think the answer is 8

Step-by-step explanation:

HELPPPPP PLEASEEEEEEEE I'M SOOOOO CONSUSED?!?!?!??!?!?!?!??!?!??!


I tried lma0 but I still need help

Answers

4 and 5 are alternate angles.

2 and 3 are vertically opposite angles.

1 and 5 are corresponding angles.

2 and 7 are alternate exterior angles.

3 and 4 are supplementary angles.

im 4 and i need help with my math the question is 11+10

Answers

Answer:

21

Step-by-step explanation:

Answer:

I'm hoping this is a troll but it's 21

Step-by-step explanation:

Please click the crown button at the bottom of my answer

Please help thank you and explain please

Answers

Answer:

x = 48

Step-by-step explanation:

first you would add them together and set it equal to 180( because a straight line is 180 degrees): 3x - 12 + x = 180

Then you add like terms( the x's): 4x - 12 = 180

now add 12 to both sides: 4x = 192

now divide by 4 on both sides x = 48

hope this helps! : )

Evaluate functions from their graph g(-9)
Please help my teacher doesn’t teach us anything and just gives us khan academy assignments and I’m really stressing out from this assignment

Answers

the answer is g(-9)=1 and teachers have one job and they can barely do it right

At the coordinate of -9, the value of the function g(-9) will be 1.

What is coordinate geometry?

A coordinate plane is a 2D plane that is formed by the intersection of two perpendicular lines known as the x-axis and y-axis. A coordinate system in geometry is a method for determining the positions of the points by using one or more numbers or coordinates.

Given that in the graph the function is varies with the value of the coordinates, at the value of -9 the solution for the function g(-9) will be equal to 1

g(-9) = 1

Hence, the value of the function will be 1.

To know more about coordinate geometry follow

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Due very soon so if someone could answer soon-ish it would be very helpful and much appreciated <3<3<3
1) A straight line is perpendicular to y=2x+5 and passes through (0,3).
What is the equation of the line??
2) A straight line is perpendicular to y=0.5x+3 and passes through (3,5).
What is the equation of the line??
3) A straight line is perpendicular to y=4-5x and passes through (20,5).
What is the equation of the line??

Answers

Answer:

1) x+2y+15=0

only know that one soz

Step-by-step explanation:

I need help I need to make sure this answer is correct

Answers

Answer:

(B) and (C)

Step-by-step explanation:

B and C

Step-by-step explanation:

[tex]( \frac{3}{8})^{3} [/tex]

[tex]( \frac{3}{8})( \frac{3}{8})( \frac{3}{8}) [/tex]

[tex] \frac{27}{512} [/tex]

hope it's helpful ❤❤❤❤❤❤❤

THANK YOU.

help!! slove for x, 13x + 47 = 151

Answers

Answer:

Step-by-step explanation:

13x + 47 = 151

subtract 47 from both sides

13x = 104

divide by 13 on both sides

x = 8

Quiana has 7 times more text messages from Yolanda than from Pierre. Quiana has 42 text messages from Yolanda. Which equation can be used to find how many text messages Quiana has from Pierre, p?

Answers

Answer:
Quiana has 8 text messages from Pierre.
Step-by-step explanation:
This question can be solved using a rule of three.
Quiana has 7 times more text messages from Yolanda than from Pierre.
This means that for each message that she receives from Pierre, she receives 7 from Yolanda.
She received 56 from Yolanda.
So
7 messages from Yolanda - 1 messages from Pierre
56 messages from Yolanda - x messages from Pierre



Quiana has 8 text messages from Pierre

EZ PTS :D and ill give brainliest :)

Answers

Answer:

a=Rational

b=interger

c=irational

d=whole

Step-by-step explanation:

I hope this helps! (i am sorry if it is wrong)

Answer:

a) rational

b) integer, rational

c) irrational

d)whole, integers, rational

Step-by-step explanation:

The numbers follow a chart of grouping

whole>integers>rational

irrational is its own group while real numbers include everything

Joan decided to look at new and used cars, Joan found a used car for $18000. Joan found that she paid 75% of the price of a new car. How much would a new car cost? Round your answer to the nearest whole number if necessary​

Answers

Answer:

22000 i think

Step-by-step explanation: I divided it into 3=6000

to find the extra 25% i added an extra 6000

so I did 4(18000/3=6000) or 6000*4

what division problem equals 9/5

Answers

Answer:

9÷5=9/5

Step-by-step explanation:

!!HELP ME PRETTY PLEASE!!Examine the four different companies in the table, which shows their yearly income and their tax rate. Which type of taxation does this table best represent?

Answers

Answer:

regressive tax

Step-by-step explanation:

Tax is a compulsory sum levied by the government or an agency of the government.

There are 3 types of taxes

1. proportional tax - the same amount of tax rate is levied on everyone.

2. regressive tax - lower earning inviduals are taxed

Answer: its proportional

Step-by-step explanation:

i got it right

The table shows the number of practice problems completed in 30 minutes in three samples of 10 randomly selected math students. Number of practice problems completed in 30 minutes Sample 1 14 15 16 17 16 15 16 15 17 18 Mean = 15.9 Sample 2 16 18 17 14 15 14 18 14 15 16 Mean = 15.7 Sample 3 18 14 16 15 15 14 17 15 19 13 Mean = 15.6 Which statement is most accurate based on the data? A. A prediction based on the data is not completely reliable, because the means are not the same. B. A prediction based on the data is reliable, because each sample has 10 data points. C. A prediction based on the data is not completely reliable, because the means are too close together. D. A prediction based on the data is reliable, because the means of the samples are close together.​

Answers

Answer:

A

Step-by-step explanation:

The statement which is most accurate based on the data is option(D)A prediction based on the data is reliable, because the means of the samples are close together.​

What is Mean?

Mean is the average of the given numbers and is calculated by dividing the sum of given numbers by the total number of numbers

From the given data,

Mean of the sample 1 = 15.9

Mean of the sample 2 = 15.7

Mean of the sample 3 = 15.6

All three mean are close together.

Therefore the data is reliable

Hence, the statement which is most accurate based on the data is option(D)A prediction based on the data is reliable, because the means of the samples are close together.​

Learn more about Mean here

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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:

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