Solve the system by substitution. 12x+6y+7z=−35 7x−5y−6z=200 x+y=−10

Answers

Answer 1

Answer:

BiG ChUnGuS  moo

Step-by-step explanation:

Answer 2

Answer:

Read Below

Step-by-step explanation:

Solve for the first variable in one of the equations, then substitute the result into the other equation.

Point Form:

( 10 , −20, − 5 )

Equation Form:

x =10, y =−20, z = −5


Related Questions

The city council budgeted $2,784 to buy new garbage cans. If each garbage can costs $96,
how many garbage cans will the city be able to buy?

Answers

Answer:

29 trash cans!

Step-by-step explanation:

Hello!

To solve this, we simply divide the budget by how much each garbage can costs. This will tell us how many times 96 goes into 2,784, and thus, how many they can buy.

$2,784 ÷ $96 = 29!

So, they can buy 29 trash cans with that budget!

If this answer helped you, please give it a rating and a Thanks!

Have a great day!

Evaluate the expression:
5a - b + c when a = 1, b = -1, and c = -1

Answers

Answer:

-1

Step-by-step explanation:

5a-b+c

Plugin what you know

5(1)-1-1

Solve

-1

Austin is planning a canoe trip with his dad and brother. They are taking a cooler and a few supplies that weigh a total of 89 pounds with them. The canoe has a maximum weight limit of 765 pounds. Which inequality can be used to find p, the average allowable weight in pounds for each person in the canoe? 3p − 89 ≥ 765 ⊝ 3p − 89 ≤ 765 ⊝ 3p + 89 ≥ 765 ⊝ 3p + 89 ≤ 765 ⊝ CLEAR ALL

Answers

Answer:

C

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

i did the test and got it right

3p + 89 ≤ 765

solve for x. pls help

Answers

Answer: -2

Step-by-step explanation:

Hope this helps <!>BRAINILEST NEEDED <!> Pls help me 2 :)

X=2 hope this helps :)

For a data set of weights? (pounds) and highway fuel consumption amounts? (mpg) of eight types of? automobile, the linear correlation coefficient is found and the? P-value is 0.001. Write a statement that interprets the? P-value and includes a conclusion about linear correlation.The? P-value indicates that the probability of a linear correlation coefficient that is at least as extreme is nothing?%, which is ? low, high, so there ? is not is sufficient evidence to conclude that there is a linear correlation between weight and highway fuel consumption in automobiles

Answers

Answer:

The correct option is;

Low

Step-by-step explanation:

Given that the P-value of the linear correlation = 0.001, we have that the P-value is a demonstration that a linear correlation that has a value in the range of the given correlation is ,most arguably very low

From the z-table, a P-value of 0.001 corresponds to a z-value of -3.09, we have that in a normal distribution since 95% of the scores have a z-score of between -2 and 2, the z-score of -3.09 is very distant from the mean and having a low value, whereby the P-value shows that the likelihood of finding another linear correlation that is as far from the mean as the given correlation  is very low.

can someone tell me which one is right in order

Answers

Answer:

2nd one 6th one 1st one 4th one 3rd one 5th one

Step-by-step explanation:

The sign of the product of any two positive number is

Answers

Answer:

The product of two positive integers or two negative integers is a positive integer. That means if you multiply two OF the same sign numbers, the product is always positive.

“The sign of the product of any 2 positive number is” *postive*
















An online music store is offering a promotion. When you spend $45 or more, you receive 3 songs for free. You buy an album for $15. Identify the inequality that represents how much more money m you must spend to receive the three free songs.

Answers

Answer: x ≥ $30.

Where x is the amount of money that you need to spend if you want to have the 3 free songs.

Step-by-step explanation:

When you spend $45 or more, you get 3 free songs.

You already bought an album that costs $15, then the minimum amount that you need to spend is (when you spend exactly $45):

$45 - $15 = x = $30.

Then the inequality is:

x ≥ $30.

Because if you spend more than $45 you also get the songs.

PLEASE HELP! MUCH APPRECIATED. MATH IS SO HARD :(

Answers

Answer:

see below

Step-by-step explanation:

x+ 7.05 = 45.3

Subtract 7.05 from each side

x+ 7.05-7.05 = 45.3-7.05

x =38.25

Let x be the number

x+3.5 = -4.3

Subtract 3.5 from each side

x+3.5 - 3.5 = -4.3-3.5

x = -7.8

x is the cost of the drawing tablet

x+ 3.95 = 6.94  correct

The second equation add the total cost plus the cost of the drawing tablet  and sets it equal to the cost of the pencils.  This is not correct

6.94+x = 3.95   incorrect

Answer:

1. x=38.25

2. -7.8

3. the second option

Step-by-step explanation:

1. x+7.05=45.3

(move the constant to the right)

x=45.3-7.05

(calculate)

x= 38.25

(answer)

2.

(you subtract -4.3 by 3.5)

3.

(you can't use $6.94 + x = $3.95 because $6.94 is your total overall so you can only use that as your end result)

I really don't understand this

Answers

Answer:

-1

Step-by-step explanation:

The mean is the sum of all values divided by the amount of values.

We take the sum of all the numbers:

-3 + -8 + 12 + -15 + 9

-11 + 12 + -15 + 9

1 + -15 + 9

10 + -15

-5

We then divide the sum by how many number we have (we are given 5 numbers):

-5/5 = -1

Therefore, our mean is equal to -1.

Answer:

-1

Step-by-step explanation:

-3 + -8 + 12 + -15 + 9 = -5 Now divide it by the amount of numbers given. -5 / 5 = -1

write 23.4571 correct to ,
a,4 significant figure
b,the nearest 10​

Answers

Answer:

I would say B

Step-by-step explanation:

Its b my teacher told me

Can you guys help with this one?

Answers

The scale of enlargement is 2. This is because the side of the triangle of the right is twice as large as the size of the same side on the triangle on the left.
The length of PR would be 14. This is because since you’re doubling the size of the sides, the new length will be 7x2.
Hope this helps :)

What factor is missing 30+12= X
(5+2)

Answers

The missing factor is 6

find the slope of the line through each pair of points (-4,-3), (7 , 1)

Answers

the slope of the line is 4/11. to find this use, m=y2-y1/x2-x1 :)

Please Answer.Dont show the work. Just please explain the work and how to get the answer.Water comes out of Leigh's garden hose at a rate of 1 gallon per of a minute. What is the unit rate at which water flows out of Leigh's garden hose?
A. of a gallon per 4 minutes
B. of a gallon per minute
C. 4 gallons per minute
D. 9 gallons per 4 minutes ​

Answers

Answer:

A

Step-by-step explanation:

I have the same question and got it write

Given that ∠A≅∠B, Gavin conjectured that ∠A and ∠B are complementary angles.

Which statement is a counterexample to Gavin 's conjecture?


m∠A=10° and m∠B=15°

m∠A=45° and m∠B=45°

m∠A=30° and m∠B=60°

m∠A=25° and m∠B=25°

Answers

45 and 45 because they are equal and add up to 90 degrees

This isnt urgent but i need an answer, i will give the person who answers correctly brainliest, please try
Use the divisibility rules to determine which of the following numbers 315 is divisible by.(Check all that apply.)

-2
-3
-5
-7
-11

Answers

Answer:  3, 5, 7

Step-by-step explanation:

There is a "trick" to determine divisibility by 3: if the sum of the digits is divisible by 3, the number is divisible by 3.

3 + 1 + 5 = 9 which is a multiple of 3, so 315 is divisible by 3.

It works for 9 also. since the sum of the digits is 9, 315 is divisible by 9.

Divisibility by 5: any number that has the units digit 5 or 0 is divisible by 5.

For 7, I just tried it  315÷7= 45

Only even numbers are divisible by 2.

If a 3-digit number is divisible by 11, the middle digit will be the sum of the first and last digits.   (That is not the case for 315)  But 385 is divisible by 11, also 495, 253, and many others you can try for fun.

List all the factors of 28 from least to greatest. Enter your answer below,
using a comma to separate each factor.
Answer here
SUBMIT

Answers

Answer:

1,2,4,7,14,28

Step-by-step explanation:

because I'm smart

Need help please someone

Answers

Answer:

dshhsbdbddjdkndkdkdkdrkrjjrrjrjhrbdbs

Please help. Brainliest mark

Answers

Answer. A
Explanation. slope intercept form is y= mx + b. m represents the slope and b represents the y intercept (the point where the line meets the y-axis). We know that the slope is 1/3 but since the y-point is 0, there is no VISIBLE “b” in the equation. The correct solution is A :)
good luck.

.Rahul and his wife work in Mohan's farm. The Government has declared that the farm workers should be paid Rs. 71 for a day's work. But the land lord, Mohan pays Rs. 60 for Rahul and Rs.55 to his wife. If Rahul works for 55 days and his wife for 40 days, what amount of money will they earn together?

Answers

Answer:

Rs. 5500

Step-by-step explanation:

The government has declared that farm workers should be paid Rs. 71 for a day's work

The landlord Mohan pays Rahul Rs. 60 and pays Rs. 55 to his wife

Rahul works for 55 days

= 60 × 55

= Rs. 3,300

His wife works for 40 days

= 55 ×40

= Rs. 2,200

Therefore the total amount of money earned together can be calculated as follows

= 3300 + 2200

= Rs. 5500

Hence they will earn Rs. 5500 together

Which of the following numbers can be expressed as repeating decimals?

3 over 7 , 2 over 5 , 3 over 4 , 2 over 9

Answers

Answer:

2 over 9 can be expressed as a repeating decimal.

Step-by-step explanation:

30-40 POINTS PLEASE HELP ME!!!!!!!!!!!!!! ITS VERY QUICK JUST PLS HELP TY



The figure shows the letter W and four of its transformed images—A, B, C, and D:




Which of the four images was formed by a reflection of the letter W?



A

B

C

D

Answers

Answer:

I would say D. for your answer.

Step-by-step explanation:

it wouldn't be upside down now would it?

Also just write it on a paper and flip it over. (Write it dark to see it better)

Hope this Helped

<3

I think is D

PLEASE MARK ME AS BRAINLIEST

Given sin(t) = 7/25 for π/2 < t < π, what is cos(t)?

24/25
7/24
-7/24
-24/25

Answers

Your question: Given sin(t) = 7/25 for π/2 < t < π, what is cos(t)?

The correct answer would be -24/25

What is the value of n? help asap​

Answers

Answer:

26

Step-by-step explanation:

Which equation represents slope-intercept form? Question 3 options: Y= mx + b Y = mx Ax + By = C

Answers

Answer:

Slope-intercept equation.

Step-by-step explanation:

y = mx + b

What is the answer of question 17 in lesson 2.1 translations

Answers

9514 1404 393

Answer:

y = 2x(1, 2)

Step-by-step explanation:

The line representing Murphy street goes through point (0, 3) and has a slope of 2/1 = 2. Its equation is then ...

  y = mx + b

  y = 2x +3

The translation vector transforms this equation* by adding -1 to y, and replacing x with x-1.

  y = (2(x-1)) +3) -1

  y = 2x -2 +3 -1 . . . . eliminate parentheses

  y = 2x . . . . . . . . . . . the equation for Nolan street

__

Of course, adding (1, -1) to the point (0, 3) moves it to ...

  (1, -1) +(0, 3) = (0+1, -1+3) = (1, 2)

The image of (0, 3) is (1, 2).

_____

* f(x) is translated by (a, b) this way: g(x) = f(x-a) +b. Here, f(x) = 2x+3 is translated to f(x-1)+(-1) = (2(x-1) +3) -1.

There are 876 students in a school. There are 46 more boys than girls. How
many boys are there?

Answers

Answer:

(876 + 46) ÷ 2 = 461 boys

Answer:

876/2

=438

=438+46

=484 boys are there in a school.

Find the slope of the line that passes through (3, -7), (1, -2).

Answers

Answer:

Slope = -2.5

Step-by-step explanation:

use the formula:

y2-y1/x2-x1

Brody bought 22 chicken wings for $37.40. If Brody spent $30.60, how many chicken wings did he buy?

Answers

Answer:

18

Step-by-step explanation

18 wings costs exactly 30.60

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