Mathematics High School

solve the system of equation
2x-y-3z=20
3x+y+6z=4
x+2y+9z=-16

Answers

Answer 1
What are you solving for.?

Related Questions

What is the slope of the line that passes through the points (6, -5) and (6, -8)?
Write your answer in simplest form.

Answers

-8- -5 / 6-6 = -3/0 which is undefined

who wanna do my homework ill give u 100 points

Answers

Answer: I will help you! What you need help with mate? I am so bored so I am waiting for a challenging question!!! :)

I can help :) just depends on what it is you need help with but I will try to help :)

PLEASEE HELP!!!!!!!!!!!!!!!
a speck of dust is 1.5 × 10 ^6 m wide. which of the following is the best way to rewrite this quantity, using more appropriate units?

Answers

Answer:

A

Step-by-step explanation:

the speck of dust is very small,

using the smallest unit out of all the choices, mm,  is the best way to rewrite it

choice A

What is the value of 7 in 46.897

Answers

Answer:

one thousandths

Step-by-step explanation:

4 is 10

6 is one

8 is tenths

9 is one hundredths

7 is one thousandths

Answer:

the value of 7 in 46.897 is 0.007 or seven thousandth

The table below would represent a proportional relationship except for one y-value. Identify which y-value prevents the table from representing a proportional relationship. Then, select the value that would make the table proportional.

X 1.5, 2, 4, 4.5, 7
Y 6, 8, 16, 16.5, 28

Alternative values 17, 18, 18.5, 19.5, 20

Answers

9514 1404 393

Answer:

  non-proportional y-value: 16.5

  corresponding proportional y-value: 18

Step-by-step explanation:

Each y-value is 4 times the corresponding x-value except for (x, y) = (4.5, 16.5).

The correct proportional values would be (4.5, 18).

I need hellllllllllllllllllllllllppppppppppppppppppp An accountant used to charge $88 per hour, but recently decided to charge 25% less. Now how much does she charge per hour? *
MAKE SURE TO STATE IF IT IS AN INCREASE OR A DECREASE AND TO HAVE THE PERCENT SYMBOL. EX) 5% INCREASE *

Answers

Answer:

$66

Step-by-step explanation:

0.75(88)

Which answer describes the type of sequence?
3,9, 15, 21, ...

Answers

Answer: Arithmetic sequence

Step-by-step explanation:

The pattern in the sequence is n = n-1 + 6. Since n is increasing through addition with each term, this sequence is arithmetic.

Find 3 consecutive odd integers such that 10 times the first is 59 more than the third

Answers

9514 1404 393

Answer:

  7, 9, 11

Step-by-step explanation:

Let x represent the middle integer. Then the first is x-2, and the third is x+2. The given relation is ...

  10(x -2) = 59 +(x +2)

  10x -20 = x +61 . . . . eliminate parentheses

  9x = 81 . . . . . . . . . . . add 20-x

  x = 9 . . . . . . . . . . . . . divide by 9

The integers are 7, 9, 11.

_____

Check

  7·10 = 11 +59 . . . true

Can someone explain to me how to get the answer:

-3 |2d| = 12

Answers

Answer:

d= -2

Step-by-step explanation:

-3×2d=12 -6d= 12 d= 12/(-6) d= -2Hope it helps you......

Pls Mark this answer as brainliest.

Help me with this problem please

Answers

Answer:

24/12

---------

100

Step-by-step explanation:

and just go to a calculator and divide the answer and round it up

At an aquarium, the admission price is $11.50 for an adult and $5.25 for a child. The owner of the aquarium wants to make at least $800 on a Saturday. Let x be the number of adult visitors and y be the number of child visitors. Select the inequality that shows the numbers of visitors that need to enter the aquarium.

Answers

what inequalities can u show them

Is the following relation a function?

Answers

Answer:

yes

Step-by-step explanation:

A function is any graph that the x values do not repeat.

You can check this by using this vertical line test

Run your finger or a pencil down a specific vertical (top to bottom) line on the graph, if you can see that it intersects into the graph more than once, then it's not a function.

7th unit 5 lesson 1​

Answers

Answer:

yes

Step-by-step explanation:

i need more info but yes

ill mark brainliest i need help
A) (-2,4)
B) (-4, -2)
C) (-4, 2)
D) (2,-4)​

Answers

The answer is c.Hope this helps

What is the probability that the selected adult is a smoker?

Answers

Answer:

Alot of adults smoke and very little adults don´t smoke at all

Step-by-step explanation:

14.0% of U.S. adults overall.

like to me 85% of adults smoke

This is important I need help I will give brainiest to whoever does both​

Answers

Answer:

c no each output has one input and 2nd is function b plz need brainlyest :P

Step-by-step explanation:

The first is D
The reason is because every input can only have one output

The second is B
The reason is because the ROC for function A is 1/4 also known as .25
The ROC for function B is .75

PLEASE HELP FAST ANYONE PLEASE!!!!

Answers

Answer:

the y intercept is 3!!!!!!!!

Meryl planted 270 plants in 45 equal rows. Find the unit rate.

Answers

Answer:

6 plants per row

Step-by-step explanation:

270 divided by 45 gives you 6, which is your individual value per row

Answer:

6 plants per row

Step-by-step explanation:

This is a fraction equal to

270 Plants ÷ 45 Rows

We want a unit rate where

1 is in the denominator,

so we divide top and bottom by 45

270 Plants ÷ 45

45 Rows ÷ 45

=

6 Plants

1 Row

=

6 Plants

Row

= 6 Plants per Row

4 1/2 + 1 3/5 =
What is the sum in simplest form

Answers

Answer: 6 1/10

Step-by-step explanation: I don’t know the decimal form but I had this question so

4/5 as a decimal plsss help

Answers

the answer is 0.8, divide 4 and 5

ONLY ANSWER IF YOU HAVE SOLUTION OR ELSE U WILL BE REPORTED!
There are 12 runners in marathon and all runners have equal chance of winning. What is the probability that a person may win a bet on the race if he has to correctly select the top 3 runners and
the order they finish in?
a) 1/1320 b) 1/1728
c) 3/1728 d) 1/12
kindly solve it using permutation technique

Answers

Answer:

A) 1/1320

Step-by-step explanation:

We know there are 12 runners in the race. Of these 12 people, one of them will get first place. In other words, 12 people have a chance of getting first place. Now there are 11 people remaining to get second place. Since one of the twelfth came first place, there are now 11 runners remaining to get second place. Finally, there are 10 people remaining. Since two of the 12 people came first and second, there are 10 people remaining who can get third place. So if a person was to correctly select the top 3 runners, then he would have a chance of 1/1320. You get this by multiplying 10, 11,12. You get 1320. since you have to pick one combination of 1st,2nd, and 3rd, the answer is A.

Tom is 6 1/6 feet tall and Gloria is 5 1/2 feet tall. Find the difference in their heights

Answers

Answer: 2/3 feet

Step-by-step explanation:

6 1/6 - 5 1/2

6 1/6 - 5 3/6

5 7/6 - 5 3/6 = 4/6 or 2/3

2/3 feet is the difference in their heights.

question no. 3 the square root pls help guys pls ​

Answers

the answer to number 3 is 198

PLEASE HELP ASAP!!! Please Answer A, B, C, or D No work is needed THX

Answers

Answer:

B

Step-by-step explanation:

Answer:

3

Step-by-step explanation:

hope this helped

I have a question! I have honors math where’s somewhere I could go get help? Please help I’m 30 hours behind and it needs to be done by Saturday!!! PLEASE HELP!! ⚠️⚠️ I’m beginning you all!!!:(((
BTW ITS 9th grade

Answers

Answer:

what are the questions pearl ?   you have to ask the questions :D

Step-by-step explanation:

I can help you if you want

HELPPPPPPPPPPPPPPPPPPPPPPPPP

Answers

Answer:

SAS

Step-by-step explanation:

Is half the sum of two and a number multiplied by itself three times linear? (and how would I write it as a mathematical expression)

Answers

I’m not sure if it’s linear but u write it as 2 divided by 2 to the power of three

The endpoints of a segment are W(0,−9)and S(10,11). What are the coordinates of the midpoint?

a.(−5,−1)

b.(5, 10)

c.(5,1)

d.(−5,−10)

Answers

Answer:

C

Step-by-step explanation:

Solve for x
(X+1)(x+5)=(x+3)(x-1)

Answers

Answer:

x = -2

Step-by-step explanation:

x^2 + 6x + 5 = x^2 + 2x - 3

x^2 + 6x = x^2 + 2x - 8

4x = -8

x = -2

Find the supplementary of an angle that measures 110°

85°


70°


73°


67°

Answers

Step-by-step explanation:

The two angles should measure 180°. So 180 - 110 = 70. So the correct answer is 70°.

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