Mathematics Middle School

Simplify the equation.

Answers

Answer 1

Answer:

Step-by-step explanation:

5(x-3y)+2(4x+y)-(x+y)

5x-15y+8x+2y-x-y

5x+8x-x-15y+2y-y

13x-x-13y-y

12x-12y

Answer 2

12x-14y
explanation:
add 5x and 8x and you get 13x−15y+2y−x−y
then subtract x from 13 x and you get 12x-15y+2y-y
then you add -15y and 2y and you get 12x-13y-y
then you subtract y from -13y and you get 12x-14y (answer).

Related Questions

What year was it 1600 years ago?

Answers

Answer:

420 CE

Step-by-step explanation:

2020-1600=420

420

Step-by-step explanation:

2020-1600= 420

can you help its due in a couple of hours

Answers

10. 884.222 (2 is recurring)

someone please help!!! i dont understand this question

Answers

It is asking which expressions are equal to I/9

Answer:

There are 3 expressions equivalent to the expression shown

the graph shows the solutions to the equation y=-4x+8. If a second equation is x=3, write an ordered pair that would be a solution to the system

Answers

Answer:

y= 3, 4

Step-by-step explanation:

y= -4x+8

x=3

y= -4(3) +8

y= -12 +8

y= 4

The ordered pair that would be a solution to the system of equation, y = -4·x + 8, and x = 3 is (3, -4)

What is a system of equations?

A system of equations is a set of two or more equations with the same variables. An ordered pair that is a solution to the system is a pair of values that makes all the equations in the system true.

The system of the equation are;

y = -4·x + 8

x = 3

To find an ordered pair that is a solution to the system, the value of x in the second equation can be substituted into the first equation, to obtain, the corresponding value of y as follows;

y = -4·x + 8, x = 3, therefore, at the solution point, we get;

y = -4×3 + 8 = -4

The above values indicates that when x = 3, y = -4, and an ordered pair that is a solution to the equation is; (3, -4).

The point (3, -4) indicates that on the same coordinate plane, the graph of both equations intersect at the point (3, -4)

Learn more on the graph of an equation here: https://brainly.com/question/27765267

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Yahaira planted a sunflower plant. It grew at a constant rate. In ¾ of a month, it was 36 inches. How tall was the plant by the end of one month?

Answers

Answer: 48 inches

Step-by-step explanation:

HELP!!!!!HELP!!!!When solving proportion based on data from graphs, why do you often convert from fractions and percents to decimals? URGENT!! PLEASE EXPLAIN IN DETAIL!!

Answers

Answer:

It'll simplify the calculation process.

Step-by-step explanation:

It'd be much harder to solve the problem "1/4 x 14" or "25% x 14" than just calculating "0.25 x 14". It'll also help you work on converting to different forms of numbers. Depending on the problem, you'll need to convert to a specific form, such as a problem that asks you to calculate the percent increase/decrease. If you answered with your number in decimal or fraction form, you haven't completely answered the problem. I hope this helps and sorry if it wasn't in enough detail! ♥️

When converting a factions and percentages to a decimal it will often make it easier for the problem to be solved so you do not have to simplify.

the food bank has 67 shelving units for canned food. Each unit holds 895 can that weigh approximately 784 pounds. If all the units are full,how many cans are stored at the food bank

Answers

Answer:

96 cans

Step-by-step explanation:

give brainliest bub

I think it may be 96 cans

PLEASE HELP FIRST WILL BE MARKED BRAILEST RECIVE A THANKS AND 5 STAR ALSO WILL RECIVE 9 POINTS!!!!!! What is the best estimate for? 3.9 4.2 5.5 6.3

Answers

3.9 = 4
4.2 = 4
5.5 = 6
6.3 = 6

Hopefully this is what you mean :)

3.9=4
4.2=4
5.5=6
6.3=6

A homeowner compared his electric bill from the last four months. In January, his bill was up $30; in February it was up another $6; in March, his bill was down $25; and in April, it was down $16. Which month showed the greatest change in his bill?

a. January
b. February
c. March
d. April

Answers

B: because she gained and didn’t decrease

Explanation:
A: 30
B:36
C:11
D: -5

So b is correct because it’s Greater

Answer:

February.

Step-by-step explanation:

Tell me about what you know about "Rounding"

Answers

It is finding the closest estimate to number. Rounding is used in everyday calculations and in many different fields of work

Answer:

Rounding is about estimating

Step-by-step explanation:

Rounding is finding the number that it is close to. It makes solving problems easier and once you understand it, it helps A LOT with estimating.

Compare the numbers below using , or = -6+(-4)____-6(-4)

Answers

Answer:

Step-by-step explanation:

-6-4=-10

-6+(-4)=-10

The answer is = you welcome buddy

Two interior angles of a polygon are equal and each is of measure 90°, while all the others are 170° each. Find the number of sides of the polygon.

Answers

Answer:

Step-by-step explanation:

Answer: 2
Step by step explanation: 2

A car full of people has passed an ascending section of track labeled B and is descending a section labeled A. Which section (A or B) of the roller coaster shows positive acceleration? Which section (A or B) of the roller coaster shows negative acceleration?

Answers

Answer: 1=A. 2=B.

Step-by-step explanation: On Edge!!!!!!!!!!!!!!!!!

Answer:

Which section (A or B) of the roller coaster shows positive acceleration?

Which section (A or B) of the roller coaster shows negative acceleration?

Step-by-step explanation:

Edge

The committee is planning a party and 150 guests are expected. Each package of plastic spoons contains 24 spoons. How many packages of spoons will be needed to so that each guest gets 1 spoon? 5 6 7 126

Answers

Answer:7

Step-by-step explanation:

150 divided by 24 equals 6.25 but round it up so everyone gets one.

Which model shows the problem 1 ÷ 1 6 ? A pie chart with 6 shaded parts. A solid circle. 3 ovals each containing 2 circles. 2 ovals each contained 3 circles.

Answers

Answer:

i think its the one about pie charts, but im not sure.

Step-by-step explanation:

The one about pie charts

Need the answers for 8 and 9 ASAP! WILL MARK BRAINLIEST!!

Answers

Answer:

8) [tex]\frac{2^8}{2^8} = 1[/tex]

9)[tex]2^83^4[/tex]=20736

The data in which table represents a linear function that has a slope of zero? A 2-column table with 5 rows. Column 1 is labeled x with entries negative 5, negative 4, negative 3, negative 2, negative 1. Column 2 is labeled y with entries 5, 5, 5, 5, 5. A 2-column table with 5 rows. Column 1 is labeled x with entries 1, 2, 3, 4, 5. Column 2 is labeled y with entries negative 5, negative 4, negative 3, negative 2, negative 1. A 2-column table with 5 rows. Column 1 is labeled x with entries negative 5, negative 4, negative 3, negative 2, negative 1. Column 2 is labeled y with entries 5, 4, 3, 2, 1. A 2-column table with 5 rows. Column 1 is labeled x with entries 5, 5, 5, 5, 5. Column 2 is labeled y with entries negative 5, negative 4, negative 3, negative 2, negative 1.

Answers

Answer: 2+2

Step-by-step explanation:

2+2=4

At a state park, 3 children and 5 adults paid a total of $48 for their entrance fees, whereas 4 children and 2 adults paid a total of $22. What is the entrance fee for 1 child? Please help me

Answers

The children is $6 and the adults is $10 <3

The kids are $6 and the adults are $10

Find the average. football yardage: 10 yd, –5 yd, 7 yd, 9 yd, –11 yd

Answers

Answer:

Step-by-step explanation:

Add all of the numbers up and divide by the amount of numbers there are. You subtract for the negatives.

Answer:

Average: 2 yards

Step-by-step explanation:

It is easy to calculate: add up all the numbers, then divide by how many numbers there are. In other words it is the sum divided by the count.

(-11)+(-5)+7+9+10 =10

( Since there are five numbers all together, Divide 5 by ten)

10/5=2

Question is on the picture thanks in advance

Answers

Answer:

4,3 = linear pair 1,5 = linear pair

2 = no relation with any other angles

Step-by-step explanation:

4,3 = linear pair
1,5 = linear pair

Help will give brainley will be reported if not a serious answer

Answers

It is option 2 because the if the smaller square is moved to the left 6 times it’s in the middle and if it moved down 5 times. You dilate it times five because the bigger square is 5x bigger than the smaller one.

Answer:

If the square with the solid lines is being transformed into the square with the dotted lines then it is either A or B

If the square with the dotted lines is being transformed into the square with a solid line then it is C or D

Step-by-step explanation:

A rectangular prism. A rectangle has a base of 14 inches and height of 17 inches. A rectangle has a base of 15 inches and height of 14 inches. A rectangle has a base of 14 inches and height of 8 inches. 2 triangles have a base of 15 inches and height of 8 inches. Devon wants to build a ramp with the dimensions shown. How much wood does he need? 470 in.2

Answers

Answer:64

Step-by-step explanation:

Look I’m not that positive

Answer:

The answer Is 680 inches.

Step-by-step explanation:

On edge 2021

Yo can someone help me out

Answers

Answer:

1/3

Step-by-step explanation:

Answer:

1/3

Step-by-step explanation:

it's the third one

Answer the question who ever does the best gets brain award (whatever its called)

Answers

Answer: The answer is B (or the second one)

Answer:

The second one

Step-by-step explanation:

NOTE: Angles not necessarily drawn to scale. 100 20 (Will mark brainliest.)

Answers

x = 60° because the line is straight which makes it 180°. 180-120=60

Answer:

Step-by-step explanation:

the reason for this is because the straight line is 180 and 100+20=120. So you would subtract 180-120 and you would get 60.

Question is in the picture Thanks in Advance

Answers

For this question, we can use the same side interior angle theorem.

Angles 1 and 2 are same side interior angles, which means that they are the interior angles on the same side.

To find the angle measure of the angles, we can plug in the value we have.

[tex]A=6x+18[/tex]

[tex]A=6(10)+18[/tex]

[tex]A=60+18[/tex]

[tex]A=78[/tex]

[tex]B=9x+12[/tex]

[tex]B=9(10)+12[/tex]

[tex]B=90+12[/tex]

[tex]B=102[/tex]

To find if the oars are parallel, we can use the same side interior angle theorem, which states that if the same side interior angles are supplementary, the lines are parallel.

[tex]78+102=180[/tex]

Seeing as the angles are supplementary, the oars are parallel to each other.

Hope this helps.

頑張って!

Answer:

ffffffffffffffffffff

Step-by-step explanation:

Pls help with 15,16, and 17 Pls hurry whoever answers first will be mark the brainliest

Answers

(15) 3 (16) -0.6 (17) -2

Answer:

You simplify

Step-by-step explanation:

15. Answer is 3 , 2 x 3/2 = 3 ( you remove parentheses & multiply the fractions)

17. Answer is -1 , 1-3/2 = -2/2 = -1 ( you convert the mixed numbers to imporper fractions and go on from there )

16. Answer is - 2/3, ( remove parenthesese & cross cancel common factor: 2)

Answer as many problems as you can

Answers

For 18 I think it’s (-4,8). but it was sort of blurry in the picture, but if this is right I hope it helped!

I think number 17 is -95 because if you do the pemdas method then you would keep the negative then add the two number in the parentheses then you would have -84+3+(-5)-3 to the power of 2 then you would do three time 3 witch is 9 then you would solve as normal -84+3-5-9= -95

In the 19th century, Britain used a money system which included pence, farthings, shillings and pounds. The following conversions were used: 4 farthings = 1 pence 12 pence = 1 shilling 20 shillings = 1 pound How many total farthings were equivalent to 1 pound and 5 pence?

Answers

Basically oafs 8 farthings equal 5 pence but I am not sure about the other 1

The number of farthings in 1 pound and 5 pence if, 4 farthings = 1 pence, 12 pence = 1 shilling, 20 shillings = 1 pound, is 980 farthings.

What is multiplication?

The fundamental concept of making the same number of additions repeatedly is represented by the action of multiplication. The results of multiplying two or more integers are known as the products, and the factors that are used in the multiplication are referred to as the factors.

Given:

4 farthings = 1 pence, 12 pence = 1 shilling, 20 shillings = 1 pound,

Calculate the pence in one pound,

1 pound = 20 × 12 pence

1 pound = 240 pence,

1 pound and 5 pence = 240 + 5 = 245 pence,

Calculate the farthings as shown below,

245 pence = 4 × 245

245 pence = 980 farthings.

To know more about multiplication:

https://brainly.com/question/1135170

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The perimeter of a square is 4 times the length of one side of the square. Which graph represents this situation? *

Answers

Answer:

Step-by-step explanation:

Graph B must be incorrect as this is a directly proportional relationship. Likewise, graph C shows an inversely proportional relationship.

Between graph A and D, only graph A passes through the origin, which is true because if length is zero, perimeter is zero.

Hence the answer is Graph A.

Answer:

Step-by-step explanation:

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