Mathematics Middle School

Solve the system using substitution. Show your work.
x = -4y + 9
x - y = 4

Answers

Answer 1

Answer:

please what should we found? is it the value of ×or y

Answer 2
x = -4y + 9
x - y = 4

- rearrange the second equation to x = 4 + y
- then we can plug it into x for the first equation

4 + y = -4y + 9 — then we solve for y
y = -4y + 5
5y = 5 -> y = 1

we can then plug in 1 (our y value) into the original second equation.

x - 1 = 4 -> x = 5

x = 5 & y = 1
you should put it in a coordinate layout so:
(5,1)

hope this helped !!

Related Questions

ok last one help meee

Answers

c c c c58 58 58 58 57
Answer is c. 58, all the rest are wrong

Sarah is on a 400 mile road trip. She has 114 miles left to travel. Her vehicle gets about 22 miles per gallon. She wants to know how many gallons of gasoline she has used.

Hilary and William both found the number of gallons of gasoline Sarah used on her trip. They each used a different method to solve the problem. Which statements are true? Check all that apply.

Answers

Answer:

13 gallons

Step-by-step explanation:

Answer:

C. They both subtracted 114 from 400

D. The difference of 114 fro 400 represents the number of miles Sarah has traveled so far

help confusing???? HELP ASAP

Answers

Answer:

expression: t³

Step-by-step explanation:

a number that can be presented by: t, is cubed which means it's raised to the power of 3.

T to the third power

Find the area of the figure.

Answers

Answer:25

Step-by-step explanation:Count all the wholes then put all the halves and there is 25

answer: 25
hope this helps out .

For each number, name its opposite.
a. -5
b. 28
C. -10.4
d. 0.875
e. O
f. -8,003

Answers

A. 5 B. -28 C. 10.4 D. -0.875 E. -0 F. 8,003

How long does it take an account with a principal of $600 to earn $90 in interest at a simple annual interest rate of 5%

Answers

Answer:

3 yrs

Step-by-step explanation:

1st year=600*1.05=630

2nd year=630*1.05=661.5

3rd year=661.5*1.05=794.57

Translate the sentence into an inequality.
Twice c is at most 19.

Answers

Answer:

2c < 19

Step-by-step explanation:

Its not giving you an exact value of what c is so when you see "at most 19" you would use less than or equal to sign ( < ) but if instead said it "at least 19" you would use a greater than or equal to sign ( > ).

What is the difference between a sample and a population?
a. Populations only consider a portion of the sample being studied. This answer is incorrect.
b. Samples are generally much larger than populations.
c. Populations do not always represent the entire group of people in question.
d. Samples only consider a portion of the population being studied.

Answers

It’s answer D!!!!!!!!!!!

plz help me to answer this

Answers

Answer:

1 a 2 b 3 d 4 c 5 c 6 b

Step-by-step explanation:

Dont send me pdfs or links please answer correctly for brainliest

Determine whether each sample is unbiased with complete sentences.

The population is every pet at an animal shelter.

A. Sample: Every dog is used as the sample.

B. Sample: The animals are grouped by species (dog, cat, rabbit, etc.), and five animals from each group are randomly selected to determine their age.

C. Sample: Every animal's name is dropped into a container, and 15 names are pulled out of it.

Answers

Answer:

C. Sample: Every animal's name is dropped into a container, and 15 names are pulled out of it.

Step-by-step explanation:

mark this brainlest please

PLASE HELP!!!!! IM DESPERATE

Answers

Answer: 1 is C 2 is F

Step-by-step explanation:

yeah

71.5 71.5 What is the measure of ∠T

Answers

Answer:

37

Step-by-step explanation:

It is 37 if you’re wondering

Two simple question Brainliest, 5 stars and Thanks too you pls HELP!!!!
Zunairah went to Joe's doughnuts and purchased two dozen glazed doughnuts. Her total was $6.00. What is the unit rate per doughnut?

Aayan drove his Lambo 5,432 miles in 24 hours. How many miles did he drive in 1 hour?

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Answer:

1. The unit rate per donut is 1/4 or .25

2. Aayan drove 226 and 1/3 miles every hour

Can someone answer this for me

Answers

He earned $9 the 7th time

Can I get some help with this question plzzz

Answers

All the possible combinations are
1-1 2-1 3-1 4-1 5-1 6-1
1-2. 2-2 3-2 4-2. 5-2. 6-2
1-3 2-3. 3-3. 4-3. 5-3. 6-3
1-4. 2-4. 3-4. 4-4. 5-4. 6-4
1-5. 2-5. 3-5. 4-5. 5-5. 6-5
1-6. 2-6. 3-6. 4-6. 5-6. 6-6

What is the total for each roll?

2. 3. 4. 5. 6. 7.
3. 4. 5. 6. 7. 8
4. 5. 6. 7. 8. 9
5. 6. 7. 8. 9. 10.
6. 7. 8. 9. 10. 11.
7. 8. 9. 10. 11. 12

What roll occurs most often?

>>>>>>7<<<<<

7 occurs in 6 out of 36 possible outcomes

Dr. Hudson has a clock decorating business. On her signature circular clock, she puts glitter tape around the outer trim. About how much tape does she need to make ten clocks if each signature circular clock has a radius of 6 in? Use 3.14 for pi.

Answers

Answer:

She will need to use 377 inches of glitter tape.

Step-by-step explanation:

Find the circumference of the circle by using the radius. The circumference of each clock is 37.7 inches. Multiply that by 10, because there are 10 clocks. That will give you your answer is 377 inches!

include step by step directions MAKE SURE ITS CORRECT

Answers

Answer:56

Step-by-step explanation:do 180-68, then divide by 2(because the x angles are equal to each other.

What is the formula for distance?
A. d = r + t
B. d = r – t
C. d = rt
D. d= r/t

Answers

Answer:

C) d =rt

Step-by-step explanation:

Answer: C

Explanation: none

A computer randomly selects a number from the given set.

{2, 4, 6, 9, 16, 44, 51, 60, 78}

What is the probability that a number less than 10 is selected?

Enter your answer as a fraction, in simplest form, in the box.

P(< 10) =

Question 3 options:

5/9

4/9

2/9

8/9

Answers

Answer:

the probability of selecting a number less than 10 is 4/9, or 0.44.

Step-by-step explanation:

There are 4 numbers less than 10, out of a total of 9 numbers.

Thus, the probability of selecting a number less than 10 is 4/9, or 0.44.

4/9 is the answer because there is 9 numbers and 4 of them are less then 10.

A rhombus has an area of 440 square meters and a base of 22 meters. What is the height?

Answers

Answer:

The height of the rhombus is 8800m.

Answer:

20

Step-by-step explanation:

a=lw

440= 22•l

divide 440 by 22 to get l by itself

20=l

A parallelogram has an area of 84 square centimetres and a base of 4 centimetres. Write and solve an equation to find the length of the height in centimetres

Answers

Answer:

21cm

Step-by-step explanation:

Please Help!!!!


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Answers

Answer:

20 divided by 5.^-^

Step-by-step explanation:

Answer:

The first one 20 divided by 5

Step-by-step explanation:

They split into 5 groups not groups of five

please help will mark brainliest (dont use links)

Answers

Answer:

A

Step-by-step explanation:

vuffyf thjcjvfyxfbhhjh

A...........................

PLS HELP ILL GIVE BRIABLIEST!

Answers

The answer b is correct

Gallon
3
2
1
OC
2
5
6
2
8
10
Minutes
The graph represents the gallons of water (/) per minute (x) dispensed by a shower head. Which statements are correct?
A)
Point (0,0) represents the unit rate,
8)
Point (5, 1) represents the unit rate,
Point (1,5) represents the unit rate.
D)
7.5 gallons of water are used in 1.5 minutes,

Answers

Answer:

I'm gonna base this off of gallon being y and minutes x

Step-by-step explanation:

it dosnt say it starts with any water in it and I have no numbers to base this so I'm gonna say that it passes through the origin and unit rate depends on how many gallons a minute just take 2 minutes and 1 gallon right well that would be .5 for unit rate hope this helps you

A 9 pound bag of sugar is being split into containers that hold 2/3 of a pound. How many containers of sugar will the 9 pound bag create?

A. 13 1/2
B. 15 1/3
C. 13 1/3
D. 27

Answers

9 divided by 2/3 would be 13.5, so your answer is A.

Simplify the expression: cos (7x) cos (4x) + sin (7x) sin (4x).

Its either

cos(11x)

cos(3x)

sin(11x)

sin(3x)

The ANSWER IS COS(3X)

Answers

Answer:

!WARNING! DO NOT CLICK THE LINK THIS PERSON HAS PREVIDED IS A HACK LINK. ALL OF THE LINKS ARE THE SAME AND WHEN YOU GO IN THEY TRACK YOUR DIVICE AND GET YOUR LOCATION. PLEASE COPY AND PASTE THIS TO OTHER PEOPLE WHO HAVE PUT THIS LINK. HAVE A GREAT DAY.

Step-by-step explanation:

To graph the point (2, 10) on the coordinate plane, start at the origin. Move 2 units _______ and 10 units ________ . 40 points

Answers

Answer:

2 units to the right and 10 units up

Step-by-step explanation:

I NEED HELP FAST! Find the surface area of the shape below

Answers

Answer: d

Step-by-step explanation: trust me ok

d i hope this helps:)

can somebody help me please

Answers

A. The scale used to make the model was 125 meters =1 foot. 525 divided by 4.2 equals 125 meters.

B. The model is 84 sheets of plywood tall.
4.2 feet = 50.4 meters 50.4 meters divided by 0.6 equals 84 sheets.
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