Mathematics Middle School

Solve the linear system using substitution. Show your work.
-8x + 3y = -33
y = -5x + 35

Answers

Answer 1

Answer:

x = 6  y = 5

Step-by-step explanation:

-8x + 3y = -33

y = -5x +35

-8x + 3(-5x + 35) = -33

-8x - 15x + 105 = -33

-23x + 105 = -33

-23x = -138

x = 6

-8(6) + 3y = -33

-48 + 3y = -33

3y = 15

y = 5

Related Questions

HELPPP ME PLS!!!!!!!!!!!!

Answers

The correct answer is 1/3
1/3 divide it 18/6 is 3 21/7 is 3 24/8 is 3

Every time Liliana bakes a batch of brownies, she uses 3/4 cup of chocolate. If she has 1/2 cup(s) of chocolate remaining, how many batches of brownies can Liliana make?

Answers

Answer:

Liliana made 2 batches of brownies!

Step-by-step explanation:

Hope this helped :)

it will only make 66% of the original lot or ⅔

Step-by-step explanation:

Suppose she makes 12 brownies with ¾ chocolate, with ½ she can only make 8 brownies.

identify the rule for the following pattern:

12, 25, 38...



divide 13

add 13


subtract 13


multiply 13

Answers

The answer would be add 13 because
12 + 13 would be 25, 25 + 13 would be 38. Hope this helps
Add 13. 13+12=25. 25+13=38 so on

What percent of 263 is 81? Round to the nearest hundredth if needed.

Answers

30.8 ghgfffghjhdcjkh

Answer: 30.80

Step-by-step explanation: have a great day (:

help pls do this whole thing ill give brainliest to whoever does It first. PLS GIVE BACK BEFORE 11:59 or it DOESENT count <3 bye

Answers

Answer:

can i have brainliest please i need one more<3

Step-by-step explanation:

It’s empty, I can’t see the image…

what did she do wrong???

Answers

Answer:

Step 4 ;

Step-by-step explanation:

step 3 ; x – 5 = – 7

step4; x - 5+5 = -7 +5

x = -2

I hope I helped you^_^

Answer:

Step 4.

Step-by-step explanation:

She subtracted 5 instead of adding 5

Hope this helped you ^v^

If it is incorrect sorry :(

Select all expressions equal to -2.

Answers

Answer:

It would be C and D

Step-by-step explanation:

A. Would be positive b/c a negative divided by a negative is a posititve

B. Would be -1/2

C. Is -2

D. Is -2.

Hope this helps!

Answer:

D and C

Step-by-step explanation:

A= -6

B= -0.5

C= -2

D= -2

Sam is saving digital copies of his movies on his computer. Right now, 247 movies take up 440,648 kilobytes. If each movie takes up the same amount of kilobytes, how many kilobytes does each movie take up?

Answers

It’s 1,784, basically just divide 440,648 by 247 and there you go!

1,784 hope that helps you

−815x=2.24 helllllllllllllppppppppppppppppp

Answers

Answer:

x= -0.0027484662

Step-by-step explanation:

The anwser is =−0.0027484662

Describe the decimal multiplication equation and product shown by the model. Include details of where each part of the equation is found on the model.

Answers

Answer:

0.010 x 0.090 = 9/10000

Step-by-step explanation:

A company's division registered a loss of (-$3,840) while producing 40 identical parts. What was the loss per part?

Answers

Answer:

$ -96

Step-by-step explanation:

Divide -3,840 by 40:Answer: $ -96

I hope it helps ♥️♥️♥️

Answer:

The answer might be C) -$96

Hope this helps you, have a nice day! :D

the mass of the moon is about 7.35 x 10^22. the mass of the earth is about 5.97 x 10^24 kg. Estimate how many times bigger the mass of the earth is than the mass of the moon

(Please show the work!)

Answers

7 x 10^22
6 x 10^24 =100

a carpenter goes through 2 3/5 boxes of nails finishing 3 1/2 rooves. How much would he use finishing 8 rooves?​

Answers

Answer: 2 3/5

Step-by-step explanation:

To find roofs per box, divide the # of roofs by the # of boxes.

Answer:

okay sorry but its roofs, not rooves but the answer is

Step-by-step explanation:

2 3/5 divided by 3 1/2 which equals 13/5 divided by 7/2

13/5 times 2/7, which equals  26/35.  This stands as 26/35 box of nails per roof. Altogether you get 5.94, which you would have to round to about 6 boxes.

Im super sorry if this is wrong

please help 40 points

Answers

Answer:

10 1/3

Step-by-step explanation:

add

9 12/9

simplify

10 3/9 = 10 1/3

Answer:

[tex]10\frac{1}{3}[/tex]

Step-by-step explanation:

[tex]2\frac{5}{9}+7\frac{7}{9}[/tex]

[tex]2+7+\frac{5}{9}+\frac{7}{9}[/tex]

[tex]9+\frac{12}{9}[/tex]

[tex]9+\frac{9}{9}+\frac{3}{9}[/tex]

[tex]9+1+\frac{3}{9}[/tex]

[tex]10\frac{3}{9}[/tex]

[tex]10\frac{1}{3}[/tex]

Jake's apple farm has 228 apple trees. Last year, 182,172 apples were produced at Jake's apple farm. If each apple tree produced the same amount, how many apples did each tree produce?

Answers

Answer:

799 apples were produced by each tree.

Step-by-step explanation:

182,172 apples evenly produced by 228 trees.

182,172 apples ÷ 228 trees = 799 apples per tree

799 apples • 228 trees = 182,172 apples

I hope this helps

799 apples were produced

Angle Q measures 30 degrees. If angle Q is rotated 15 degrees, what is the measure of angle Q′?

Answers

30°

an angle has the same measurement no matter what direction you rotate it

30 degrees hope this helps!

What is the product?

−4⋅2⋅(−9)


−72

−11

72

144

Answers

The answer is 72 reason because I’m did the assignment
72 just put it in a calculator

Aldo wants to pour 26.26 grams of salt into a container. So far, he has poured 22.27 grams. How much more salt should aldo pour?

Answers

Answer: 3.99 grams

Step-by-step explanation:

You can easily break this up into 26-22 and .26-.27. 26-22 is equal to 4, while .26-.27 is equal to negative .1. 4 minus .1 is equal to 3.99, so we need to add 3.99 grams more salt to the container.

I need help asap giving 20 points

Answers

Answer:

Its the second 1

Step-by-step explanation:

40 POINTS please help

Answers

13 1/4 is the answer

9 7/8 + 3 3/8

12 10/8

13 2/8

13 1/4 (simplified)
add the whole numbers 9+3=12 the denomonaters are the same so keep them the same add the numerators 7+3= 10 and 10-8= 2 so add one to your whole number and have two as ur numerator so now you have thirteen and two eighths or 13 2/8

What is 12 x 7/8 simplified

Answers

Answer:

21/2, decimal form would be 10.5, mixed form is 10 1/2

Step-by-step explanation:

if you’re solving it as a fraction, it’s 3x^7/2 but if you’re solving it through PEMDAS, it’s 10.5

Explanations for all

Answers

Step-by-step explanation:

16. 339

19. 1,026.

21. 512.71

22. 2,370

24. 208.8288

theres some answers! hope that helps.

16. 339

19. 1,026.

21. 512.71

22. 2,370

24. 208.8288

helllpppp I need to get my grade up to a B by Thursday!!

Answers

Answer:

Less than

Step-by-step explanation:

Hope this helps! Pls give brainliest!

Answer:

Less-than

Step-by-step explanation:

Which division problem results in a terminating decimal? PLEASE HELP ME(20 Point!!!)

Answers

Answer:

C

Step-by-step explanation:

the answer is C 4 ÷ 64

it ends with 0.0625

P.S I just finished a assignment on this lol

the answer is c I’m pretty sure

HELP PLS!! a,b,c,d??

Answers

Answer:

BRAINLY PLEASE

Step-by-step explanation:

y=-3x+2

Answer:

the correct answer is A because 3 is the rise over run or the slope while 2 is the base or starting value

May someone help me with this. The question is in the picture.

Answers

34$ is the answer because 0.05x680=$34

Answer:

34

Step-by-step explanation:

1. 680×5% where what I do, 680×0.05 because it's easier for me. Whatever way you do, you get the same thing.

2.You got the answer! 680×0.05=34

(I'M NOT GOOD AT EXPLAINING THINGS SO DON'T SUE ME IF YOU DIDN'T GET IT :] )

Please help and explain how to do this math problem. :c

Answers

The answer would be mode= 16, Median= 16, mean=16.91, range=8. The mode is which number on the number line has the most dots on it, in this case it’s 16. For the mode you would go from side to side and cross each dot off till you reach the middle. And once again in that case it’s 16.
mode = 16 median = 16 mean =16.9 and range=8.

Is this answer correct?

Answers

Answer:

yes

Step-by-step explanation:

I need help on how to show my work and how to get the answer help me pls

Answers

Answer:3,150

Step-by-step explanation:

Well I what I did was I took 450 and then multiplied it by the number of days there are in a week which is 7 so I did 450 x 7 and got 3,150

I hope its right if not please let me know and I would be happy to check over again =)

What is the least common denominator for the fractions 16and34?


8

12

18

24

Answers

I believe the answer is 4
The least common denominator for 1/6 & 3/4 is 12.
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