Mathematics Middle School

Simplify the expression:
9–7k+9k–k

Answers

Answer 1
9+k I am pretty sure

Related Questions

Help please i dont understand
Turn it btw

Answers

Answer:

1 + 3/6

Step-by-step explanation:

the first full thing represents 1 then there are 3 of 1/6 which is 3/6

please help with them all please i need help asap

Answers

Answer:

Step-by-step explanation:

Hope this helps u and sorry me handwrighting is BAD but idc!

What the person who sent the picture said is correct

*At a sale, shirts were sold for $36 each. This price was 80% of their original price. What was the original price?

Answers

Answer:

18.75$

Step-by-step explanation:

Your welcome

plzzzzz help i need this for my homework thx :)

Answers

Answer:

=4.1d+5.4h−18

Let's simplify step-by-step.

8h−0.9d−18+5d−2.6h

=8h+−0.9d+−18+5d+−2.6h

Combine Like Terms:

=8h+−0.9d+−18+5d+−2.6h

=(−0.9d+5d)+(8h+−2.6h)+(−18)

=4.1d+5.4h+−18

Answer:

[tex]-1.9d+5.4h-18[/tex]

Hope this helps :)

-ilovejiminssi ♡

Fabiola’s dog is 5 pounds heavier than one-third of the weight of Luisa’s dog. Fabiola’s dog weighs 23 pounds. Use the diagram to write an equation to represent the dogs’ weights. Let f represent the weight of Luisa’s dog.

A long rectangle is the top section. 2 smaller rectangles are the bottom section.

The top section represents
.
The bottom section represents
.
The equation is

Answers

answer;

1. the top section represents, 23 pounds. (d)

2. the bottom section represents, 5 + 1/3f. (a)

3. the equation is, 23 = 1/3f + 5. (b)

hope this helps!

1/3x+5=23 is equation to represent the dogs’ weights and weight of Luisa' dog is 54 pounds.

What is Equation?

Two or more expressions with an Equal sign is called as Equation

Let f represent the weight of Luisa’s dog.

Fabiola’s dog is 5 pounds heavier than one-third of the weight of Luisa’s dog.

Luisa' dog weight: x pounds

One-third of the weight of Luisa’s dog: 1/3x pounds

5 pounds heavier than one-third of the weight of Luisa’s dog : 1/3x+5

Fabiola's dos weight: 1/3x+5pounds that is 23 pounds.

1/3x+5=23

Subtract 5 from both sides

x/3=18

x=54 pounds

Hence, 1/3x+5=23 is equation to represent the dogs’ weights and weight of Luisa' dog is 54 pounds.

To learn more on Equation:

https://brainly.com/question/10413253

#SPJ2

Simplify the expression:
5+a+7a+1

Answers

Answer:

13+2a

Step-by-step explanation:

5+7+1 is 13. a +a is 2 a. Therefore, the answer is 13+2a!

13+a


5+7+1 is eight (8) and the a is the same variable so you just out them together

James types 90 words in 2 minutes. At this rate, how many words can James type in 15 minutes?

Answers

it would probably be 675 cause i did it and got that

Answer:

675 words

Step-by-step explanation:

If James can types 90 words in 2 minutes, we can assume that he can type 45 words per minute. If we multiply 45 words per minute by 15 minutes, we get 675.

Find each percent of change. Round to the nearest whole percent if necessary. State whether the percent of change is an increase or a decrease.

1. 15 yards to 18 yards

Answers

Answer:

Percent of change: 20% (rounded) It is an increase

Step-by-step explanation:

Percent of change is 20% rounded

:')) Help me please-

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Answer:

A. 2 and 1/10

Step-by-step explanation:

flip the last fraction

3/5 x 7/2= 21/10

Do Keep, Change, And Flip
first you would keep 3/5 then change the division sign to a timed sign, and flip 2/7 into 7/2. You should get 2 1/10

when the movie the hunger games was released it made $493,000 the first day. box sales continued to double every three days how much was the movie grossing on the 15th day?
PLZZZZZZZZ SHOW YOUR WORK!!!!!!

Answers

The movie was grossing $3,451,000 on the 15th day, just doubled the original amount every three days and got $3,451,000 or 493,000 * 7 = 3,451,000

PLEASE HELP QUICK!!!
1/7(105 + r) = 20
Which describes the solution, r, to this equation?
A. The solution is 5, which represents the number of miles she runs each day.
B, The solution is 5, which represents the number of miles she runs each week.
c. The solution is 35, which represents the number of miles she runs each day.
D. The solution is 35, which represents the number of miles she runs each week.

Answers

D. The solution is 35, which represents the number of miles she runs each week.
D. The answer is D.

What are the coordinates of Point X?
A. (3, –4)
B. (–3, –4)
C. (4, –3)
D. (4, 3)

Answers

Answer:

3, -4

Step-by-step explanation:

Hi I really hope this helps you, Please mark as brainliest!

The answer is A) 3,-4

At a skateboard shop:
a) The price tag on a shirt says $12.58. Sales tax is 7.5% of the price. How much will you pay for the shirt? Show your work

b) The store buys a helmet for $19.00 and sells it for $31.50. What percentage was the markup? Show your work

c) The shop pays workers $14.25 per hour, plus 5.5% commission. If someone works 18 hours and sells $250 worth of merchandise, what is the total amount of their paycheck for this pay period? Show your work

Answers

Answer:

a= 7.5%12.58= 0.9435 round 0.94+12.58= 13.52

b= 31.50 divided by 19.00= 1.65789474 round 1.66

c= (14.25 x 18)+ (5.5%250)

            l                     l

            v                    v

        256.50 +   13.75 =  270.25

Step-by-step explanation:

Can you please explain this to me and answer

Answers

1)73 degrees
all the angles of a triangle add up to 180 degrees.
23+84= 107
180-107=73

2) 28 degrees
110+42= 152
180-152= 28

Explanation:

All sides in a triangle is equal to 180°
So whenever given two sides only, add them up, and subtract from 180. That will give you the missing sides length.
So 23 + 84 = 107
180 - 107 = 73
The missing side of the triangle is equal to 73°.

110 + 42 = 152
152 - 180 = 28°
The missing side of the triangle is equal to 28°.

Another example is:
100°, 40°
Front the missing side in this triangle.
100 + 40 = 140°
180 - 140 = 40°
The missing length is 40°

Hurry I’m being timed !!! I need this to be correct plzzzz

Answers

Answer:

4

Step-by-step explanation:

What is 10x+5-(-2x+3) in simplest form

Answers

Answer:

12x-2

Step-by-step explanation:

10x+5-(-2x+3)

10x+5+2x-3

12x-2

10x+5+2x+3
12x+8
We just have to make - - to plus and then add the x ones and the other ones. Have a great day!

One of the triangles pictured is a rotation of triangle ABC and one of them is a reflection.

1. Identify the center of rotation, and label the rotated image PQR.
2. Identify the line of reflection, and label the reflected image XYZ.

Answers

1) the green triangle would be labeled PQR starting at the bottom angle and going counter clockwise
2) the red triangle should be labeled XYZ starting at the top angle and going clockwise

plsssssssss helpppppp

Answers

Answer: I think “equal”

Step-by-step explanation:

Equal? I think that it is correct

I'LL GIVE BRAINLIEST:



B or C

Answers

Answer:

b

Step-by-step explanation:

is the proper answer

What is the surface area?
5 in
6 in
5 in
5 in
4 in

Answers

Answer:

Where is the question:)

25
Add up all the measurements

A cycle shop sells bicycles, tricycles, and unicycles in a single color of red, blue, green, or white. Draw a tree diagram to find out how many different combinations of cycles types and colors are possible. (I need the answer before 5:30 today)

Answers

i’m pretty sure it would be a total of 4

Simplify the expression:
v2+9+5+4v2

Answers

Answer:

what is 4v2

Step-by-step explanation:

Answer:

2+9+5+4*2= 24v

Step-by-step explanation:

pleaseeeeeeeeeeeeeeeeeeeeeeeeeeessssssssssssssssssss

Answers

You kept the movie for 3 extra nights

Answer:

4 1/2 days

Step-by-step explanation:

3.45 plus 1.25 times 5 = 8.45

it says on the final day you pay 7.70 so its 4 1/2

what is the cube root of 1/1000

Answers

Answer:

0.001

Step-by-step explanation:

I got that answer I am not sure if it's right

Answer:

0.001

Step-by-step explanation:

Dan has 4 over 5 cup of ice cream. How many 1 over 8-cup servings are in 4 over 5 cup of ice cream?

Answers

6 and 1 over 2

i did lots of math

pls help it is due today

Answers

264 students are in the whole entire school
Its 230 trust extending answer

A gardener planted 5 rows of vegetables. Each row has 3 pepper plants and s squash plants. The garden contains a total of 20 plants.
Which equation can be used to determine the number of squash plants that are in the garden?

3(5+s) = 20
(5x3) + (5xs) = 20
5(3+s) = 20
15 + 3s = 20
5 + 3 + s = 20

Answers

(5x3)(5xs)=20
Hope that helps

Can you guys please help me with this (picture is below)

Answers

The school did reach the goal because if you add the games, concessions and donations you get $1232 and if you subtract 28 from it you get $1204 and if you subtract 75 from that you get $1129.
yes, they did reach their goal.

Start by adding 650, 530, and 52 because those are all the money made and received (the income). Then there are the expenses that you have to subtract due to the fact that they're losing money. So from adding all the income you get 1232 and then when you subtract your expenses you get 1129 which is a 29 dollar difference. (i hope this helped :D)

Brainliest and 41 points, get it quick!!! Can yall tell me the points or make a graph with the slope line that is linear for the points (15, 42) (25, 49) (65, 50) (35, 35) (5, 7) (10, 9) (11, 10) (18, 23) (37, 36) (39, 27)If so that would be awesome!!! Please and thank you if you do it!

Answers

Answer: y=0.63x+12.5

sum of x = 260

sum of y = 288

mean x = 26

mean y = 28.8

sum of squares= 3000

sum of products= 1876

find the line of best fit or line of regression

regression equation = y = bx + a

b= 1876/3000 = 0.62533

a= 28.8 - (0.63*26) = 12.54133

then round and plug a and b into the equation

y=0.63x+12.5

you decide where to put the line by where the average or mean of the points are. there are clusters in the points which makes it easier to place the line of best fit. the outliers are the point scattered away from the line of best fit and the clusters are groups of point very closely put together.

What is x - 12 = 6
THANKSSSSSSSSS

Answers

Answer:

18

Step-by-step explanation:

x - 12 = 6

x = 6 + 12

x = 18

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