Mathematics Middle School

City A and City B had two different temperatures on a particular day. On that day, four times the temperature of City A was 8° C more than three times the temperature of City B. The temperature of City A minus twice the temperature of City B was −3° C. The following system of equations models this scenario:

4x = 8 + 3y
x − 2y = −3

What was the temperature of City A and City B on that day?

City A was 5° C, and City B was 4° C.
City A was 3° C, and City B was −1° C.
City A was 8° C, and City B was −3° C.
City A was 5° C, and City B was −5° C.

Answers

Answer 1

Answer:

City A was 5 and city B was 4

Step-by-step explanation:

Use substitution. Move 2y over so you have x=-3+2y

Plug that into 4x=8+3y

4(-3+2y)=8+3y

-12+8y=8+3y

subtract 3y from both sides

add 12 to both sides

5y=20

20 divided by 5

y=4

then youd plug it into the other equation

x-2(4)=-3

x-8=-3

x=5

therefore the answer is A

Answer 2

give hisoka brainliest

he loves kids, i love him too <3

Related Questions

Write a real world problem in which you need to find the volume of a right rectangular prism. Solve your problem.

Answers

Answer:

Tiffany just got an aquarium for her rare turtle. She wants to fill it with water but it came without the volume measurement on it. She measures and finds aquarium's length is 30 inches, width is 12 inches, and height is 18 inches. How many cubic inches of water does she need?

Step-by-step explanation:

The formula for right rectangular prism is Length×Width×Height

30×12×18 = 6480

So she needs 6,480 in³ of water

Please help me! use the following set of data: 20, 28, 30, 6, 15,18, 21, 22, 25, 29, 24, and 26. What are the third and first quartiles of the data?

Answers

Answer:

obamna

Step-by-step explanation:

Answer:

1st quartile 19 and 2nd quartile 27

Step-by-step explanation:

Hope this helps!

Don't guess!
I will mark brainliest if its correct!
Don't answer if you don't know!
Also no links!
And show your work plz!

Answers

The answer would be D. M(total of backpack and books) = 0.8(backpack empty) + X(weight of books)
the correct answer is c

Pls Help Me.
Use the table to solve the equation −6x>18
Table:
x: -5 -4 -3 -2 -1
-6x: ? ? ? ? ?
The solution of the inequality is: __________

Answers

Answer:

x>-3 because that's how it goes

X>-3 is the any sorry if wrong

Find the value of x and find whether the angles or supplementary or complementary.

Answers

Answer:

1) x = 31

2) Both angles add up to be a supplementary angle (an angle who's sum is 180° altogether).

Step-by-step explanation:

1) Since both angles add up to be a supplementary,

→ equation 1 + equation 2 = 180

→ (3x + 25) + (2x) = 180

Solving by applying algebra will give the answer "x = 31".

Hope this helps!

X=31 I did the math and that was the answer

Don't guess!
I will mark brainliest if its correct!
Don't answer if you don't know!
Also no links!
And show your work plz!

Answers

The answer would be A because the amount of pages she reads depends on the amount of time she takes to read

Question 1:
What would be a good description for the weight of Variety A tomatoes, in general? What about the weight of Variety B tomatoes, in general?
Question 2:
Which tomato variety should the farmer choose? Explain your reasoning.

Answers

Answer:Trained Plants

Step-by-step explanation:

On average, a staked tomato plant will produce an estimated 8 pounds per plant, while plants trained via trellis or cage produce an average estimate of 12 to 20 pounds per plant.

In a school with 5,000 students, a random sample of 100 students finds that 25 are in favor of school uniforms. Estimate the total number out of 5,000 that are in favor of school uniforms.

Answers

Answer:

Step-by-step explanation:

k

Answer:

1250 are in favor

Step-by-step explanation:

25/100 students is 25% of that number of students. 25% of 5000, the total number is 1250.

Answer please and thank you ; ) also, have a nice day!

Answers

1. B





2.A






Explanation

want to play blooket
code is 587721

Answers

Answer:

Step-by-step explanation:

Answer:

Bleh code doesn't work...

Please answer I will give your brainliest

Answers

Answer:

I think the answer is 113

Step-by-step explanation:

Cause every angle does look the same on each side

Rectangle ABCD was dilated to create rectangle A’B’C’D’. The area of rectangle ABCD is 16 in and the area of the rectangle A’B’C’D’ is 64 in. Which scale factor was used to dilate the rectangle?

A.2
B.4
C.8
D.16

Answers

It 4 so your answer is B

23s = 322

what is s

pls and thanks!

Answers

Answer:

14

Step-by-step explanation:

322/23=14 FILLER FILLER

S is just simple multiplication because if the total is 322 than the s is just a simple way of saying what is the number so the answer is 14 just 23 x 14 =322

yooo yall trien help i need help wsppp??

Answers

Answer:

A- 75.4 millimeters cubed

Step-by-step explanation:

3mm to the 4th power estimates to A

Answer:

Step-by-step explanation:

please help will mark brainliest (dont use links)

Answers

Answer:

A

Step-by-step explanation:

vuffyf thjcjvfyxfbhhjh

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

PLEASE HELP AND ANSWER FOR BRAINLIEST <3

Answers

Answer:

#1) <KIH

#2) <HIK

Just make sure the I is in the middle since I is the middle and essentially the marked angle.

Answer:

HIK and KIH

Step-by-step explanation:

If the height of each prism is 10 cm, what is the surface area of the rectangular prism?

Surface Area = 2lw + 2hw + 2lh
(Geometry)

Answers

the surface area is 15 cm

Dont guess!
I will mark brainliest if its correct!
Also no links!

Answers

Answer:

I know you said no guessing, but I'm assuming it's the first one, F.

Answer:

The second graph as per my best guess LOL

Step-by-step explanation:

LMK if I'm wrong please

can you do this one pls

Answers

Answer:

it is 3.00

Step-by-step explanation:

as you can see first we define the variables

1. the y axis(vertical) represents the cost of peaches while the x axis (the bottom one) represents the number of pounds

2. then we find a place where the line crosses the grid but exactly on the corner of the box

3. when we have found our point which is (2,6) it means that every 2 pounds of peaches is 6 dollars

4. divide 6/2 and you get 3 dollars!

Noah scored 20 points in a game. Mai's score was 30 points. The mean score for Noah, Mai, and Clare was 40 points. What was Clare's score? Show your work.
I need this answer ASAP.

Answers

Answer:

Clare's score was 70.

Step-by-step explanation:

N = 20

M = 30

C = ?

Mean = (Sum of all values)/3

40 = (20 + 30 + c)/3

40 = (50 + c)/3

50 + c = 120

c = 70

Answer:

70

Step-by-step explanation:

Let's think about this backwards. The mean of all 3 points is 40, so that is our answer. We instead of dividing would multiply. We would multiply by 3 'cause that's how many numbers there are. We would get 120. Finally, we would                                                                                                    

                                                                                      3

have to subtract. We will do this problem:

20 + 30 = 50

120 - 50 = 70

So, we get our answer of 70!

__

Let's check our work!

20 + 30 + 70 = 120 = 40

         3               3

__

Let's explain our work propproperly:

First, I took the mean and multiplied it by three because we have Noah, Mai, and Clare. Next, I added 20 and 30 to get an answer of 70 which is the answer. In conclusion, Clare's points are 70 points.

plzzzzzzzzzzzzz help me with this im so confused

Answers

Answer:

You have to add the perimeter of [tex]x^{2}[/tex] + 4 and 5[tex]x^{2}[/tex] + 1.

Step-by-step explanation:

Remember when it says "area" that means multiply but "perimeter" means addition.

A restaurant placed a 2- quarter pitcher of water on each 76 tables. the water was severed from from a 50- gallon containter. How many QUARTS of water remained in the 50- gallon container after all ther pitchers were filled

(4 quarts=1 gallon)

Answers

Answer:

There would be 12 gallons left

Step-by-step explanation:

If there was 76 of the 2 quarter pitchers that would make 152 Qt and 152 Qt equals 38 gallons so 50 - 38 = 12

Answer is 24

Step by step.

(50x2)-76

A dress originally cost $120. If it is now on sale for $100, what is the percent of the decrease in price? (I WILL GIVE BRAINLEST IF YOU ANSWER THIS)

Answers

16.67%
120 x .1667= 20.004
120-20.00= 100

A sphere has a radius of 5 feet. Find the volume of the sphere. Leave your answer in terms of pie. Then use 3.14 for pie and round the volume to the nearest 10th. Volume in terms of pie=? Volume in using 3.14=?

Answers

The Volume is 523.6
Solution: V=4
3πr3=4
3·π·53≈523.59878 and 5 or more raise the score so the 9 makes the 5 into 6 and drop all of the other numbers

The solution is, The Volume is 523.6, of the sphere has a radius of 5 feet.

What is volume?

In mathematics, volume is the space taken by an object. Volume is a measure of three-dimensional space. It is often quantified numerically using SI derived units or by various imperial or US customary units. The definition of length is interrelated with volume.

here, we have,

Given,

r = 5 ft

pi = 3.14

Formula

the volume of sphere is:

V = 4/3 * 3.14 * r^3

Solution

V = 4/3  * 3.14 * 5^3

V = 4/3 * 3.14 * 125

V ≈ 523.59878

V ≈ 523.6 m^3

as, we get,

V≈523.59878

and 5 or more raise the score so the 9 makes the 5 into 6 and drop all of the other numbers.

Hence, The solution is, The Volume is 523.6, of the sphere has a radius of 5 feet.

To learn more on volume click :

brainly.com/question/1578538

#SPJ2

hi I need help with this question PLS HELP ME THANK U.

Answers

Answer:

Step-by-step explanation:

HELP ASAP I WILL GIVE BRAINLIEST
Which of the following can be measured?

radii
chords
circumference
diameters
you can choose more than one answers

Answers

Answer:

Diameters

Step-by-step explanation:

Answer:

Chords n circumference

help me solve this thanks!!1 : )

Answers

the answer to the problem is a=-6

Can you help me I forgot

Answers

Harrison walked a total of 14 km because the first rectangle has a perimeter of 6 km and the second has a perimeter of 8 km. Harrison’s brother walked a total of 12 km since that was the perimeter of the 5*1. 14-12 is 2 so there is a 2 km difference.
He walked 14 km and there was a 2 km difference

help plz i need it really quick

Answers

Answer:

20 messages per hour

Step-by-step explanation:

160 messages in 4 hours

160/4

= 20

20 messages per 1 hour

Answer:  2.08333333333 That should be the answer I think

Step-by-step explanation:

−8 • −14

A. −116
B. −112
C. 112
D. 116

Answers

Answer:

Answer C:  112

Step-by-step explanation:

The product of two negative numbers is a positive number.  Thus, we omit possible Answers A and B.  Using mental math or a calculator, find 8 • 14; it is 112 (Answer C).

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