Mathematics Middle School

What is 8x-7(x+3)+5x

Answers

Answer 1

Answer:

I'm not 100% sure love, but I think it would be 12x.

Step-by-step explanation:

Answer 2

Answer:

6x-21

Step-by-step explanation:

First distribute

8x-7(x+3)+5x

8x-7x-21+5x

Then combine like terms

8x-7x-21+5x

6x-21

Related Questions

EXPERT HELP: Some species can reproduce sexually or asexually. In which two situations is sexual reproduction advantageous?
A. When no individuals of the same species are available for mating

B. When many individuals of the same species are available for
mating.

C. When the individuals live in a stable environment in which they
thrive.

D. When the individuals live in an environment that suddenly
changes.

Answers

answer: B,C

Step-by-step explanation:

to be able to reproduce sexually you need enough of the same species to mate with. A says no individuals to reproduce with but for that it would be better if they were asexual. D says they change living environment and that usually changes the amount of same species animals that are around to reproduce with.

B and C. They need more multiple individuals to mate. They also can’t live in a environment that is changing they need to be comfortable

If you bought 12 cookies (each cookie for 0.99) how much more would each cookie cost than if you bought them by the dozen? ( A dozen pack is for 6.55)

Answers

6.55 it’s in the question my g

UM CAN SOMEONE HELP ME

Answers

Answer:

Use one of those mean median and mode calculators

Step-by-step explanation:

Answer:

too lazy rn, add every thing up. then divide by how many numbers u have

Step-by-step explanation:

:)

7 , 14 , 2

I need LCM for it. Write it in ur notebook and take a pic and send answer

Answers

so do the multiples for each one

7- 7, 14, 21, 28, 35, 42, 49
14 - 14, 28, 42, 56,
2 - 2, 4, 6, 8, 10, 12, 14, 16, 18.....28

Sooo it’s 14 :)
Since you already got an answer, here is a sight that can help you on other questions.

There is two questions please help me

Answers

36cm
13.6in. my mom helped

Step-by-step explanation:Answer:

As it is equilateral triangle, l₁ = l₂ = b = 6 cm

Total surface area of triangular prism= (l₁ +l₂ + b)* height

                                                                 = ( 6 + 6 + 6) * 15

                                                                 = 18 * 15

                                                                 = 270 cm²

2) length = l = 8.2 in

Width = w = 3.4 in

height = h = 2

Total surface area of rectangular prism = 2*(lw + wh + hl)

= 2*(8.2*3.4  +  3.4*2  + 2*8.2)

=2 *( 27.88 + 6.8 + 16.4)

= 2 * 51.08

= 102.16

= 102 in²

This high school stadium contains a track that surrounds a soccer field. The soccer field is 100 yards long and 70 yards
What is the area of one of the semicircles at either end
The school decided to cover the semicircles with grass to create a space for stretching and other activities. How many square yards of grass will the school need to cover the entire circle
What is the distance around one of the semicircles at either end of the soccer field
What is the distance around the inner lane of the track the lane closest to the soccer field

PLEASE HELP!
asap

Answers

Answer:

Given : The high school stadium contains a track that surrounds a soccer field. The soccer field is 100 yards long and 70 yards wide.

The school decided to cover the semicircles with grass to create a space for stretching and other activities.

To Find: area of one of the semicircles at either end of the track

How many square yards of grass will the school need to cover the entire circle?

Solution:

Diameter of semicircle = 70 yards

Radius of semicircle = 70/2 = 35 yards

Area of semicircle at one end = (1/2)πr²

= (1/2)(22/7)35²

= 1,925 sq yards

area of one of the semicircles at either end of the track = 1,925 sq yards

square yards of grass will the school need to cover the entire circle

= 2 x   1,925

= 3850 sq yards

distance around one of the semicircles at either end of the soccer field = πr  = (22/7) 35 = 110 yards

distance around the inner lane of the track  = 100 + 100 + 110 + 110

= 420 yards

Please Mark as Brainliest

Hope this Helps

What is the distance between 32 and -67 on a number line?

Answers

I think it is 26 sorry if I’m wrong

The answer is 99

-67-32=-99

distance can't be negative so its 99

Write six and five hundredths in decimal form.

Answers

6.05 = Sixty Five Hundreths

The six and five hundredths in decimal form is 6.05.

Given that,

We need to write in decimal form in six and five hundredths.

Based on the above information, the calculation is as follows:

= 6 + 0.05

= 6.05

Learn more: brainly.com/question/16911495

I need help really fast plz ​

Answers

Answer: E: all of these are factors

Step-by-step explanation:

can someone help me please

Answers

Answer:

Step-by-step explanation:

Answer:

This is the correct answer

Mr. Aamodt bought a new lawn tractor for $3,350.

a. The state sales tax on the lawn tractor purchase will be 6.5%. How much state sales tax will Mr. Aamodt pay on the tractor? (2 points)

b. Mr. Aamodt has applied for a 2‐year loan at the bank for $3,350 to pay for the new lawn tractor. The bank will charge him 8.4% simple interest on the loan. What amount of interest will Mr. Aamodt pay on the loan? (2 points)

c. What is the total cost of Mr. Aamodt’s new lawn tractor, including the purchase price, the loan interest, and the sales tax? (2 points)

Answers

Answer:

A) 217.75 sales tax

B)281.40 he will pay on the loan

C)$3849.15 he will pay including total cost, interest, and tax

Step-by-step explanation:

A)

To find sales tax, multiply the price by its percentage. 6.5% in decimal is 0.065. 3350x0.065=217.75 for its sales tax.

B)

This is the same for loan.

3350x0.084=281.40 he will pay for loan.

C)

Now add it all up. 3350+217.75+281.40=3849.15

Answer:

The correct answers are:

a. $217.75!

b. $281.40!

c. $3,849.15!

Step-by-step explanation:

a. Find the sales tax by multiplying the price by its percentage (6.5%, 0.065 in decimal form)

3,350 x 0.065=217.75

so the sales tax is $217.75

b. This is the same as finding tax. Find the loan by multiplying the original price by the percentage (8.4%, 0.084 in decimal form).

3,350 x 0.084 = 281.40

so the loan is $281.40

c. This time, sum the original price with both the loan and sales tax.

3,350 + 217.75+ 281.40= 3849.15

so the total cost for the new tractor is $3,849.15

So there you have it. You have your answers right here. Hope this helps! Be sure to mark this as brainliest!

;)

Mai started a new exercise program. On the second day, she walked 5 minutes more than on the first day. On the third day, she increased her walking time from day 2 by 20% and walked for 42 minutes. Mai drew a diagram to show her progress.

Answers

Answer:

d = 30 minutes.

day one is equal to 30 minutes

day two is equal to 35 minutes

day three is equal to 42 minutes

Explanation:

The first step is to figure out how much day 2 was worth in total.

Using the model, we can see that 5 of the boxes from day three is equal to day 2.

42/6=7.

One of the boxes equals 7 minutes.

Next we find what all 5 of them equal.

7*5=35.

Day two was worth 35 minutes in total.

The next step is to figure out what d equals. In order to do that, we need to solve the equation:

d + 5 = 35.

subtract 5 from both sides.

d = 30.

Now we know that day one/D is equal to 30 minutes.

Day one: 30 minutes

Day two: 35 minutes

Day three: 42 minutes.

Hope that this is what your looking for. Have a good day and good luck!

Answers
D = 30 minutes

5z + 2 = 3z - 10

Show your work and I will give you brainlist ​

Answers

Answer:

z = -6

Step-by-step explanation:

5z + 2 = 3z - 10

Subtract 3z from both sides

2z + 2 = -10

Subtract 2 from both sides

2z = -12

Divide each side by 2

z = -6

So, the answer is z = -6

Could someone pls help me

Answers

Answer: y = 90   x = 29

Step-by-step explanation:

y=90 x=29
a straight is 180

Can someone help me with these questions

Answers

Answer: you got this try your best

Step-by-step explanation:

Hope this helps you!
(the answers to questions 9 and 10 are in the picture)

how do you use models to add and subtract fractions that have different denominators?

Answers

Answer:

the langth

Step-by-step explanation:

(Just correcting the other guys spelling) I believe he meant The Length

Find the unit rate:

$1.32 for 12 ounces

plz help

Answers

Answer:

$0.11/per ounce

Step-by-step explanation:

x = how much it costs for 1 ounce

1.32/12 = x/1

Cross multiply

12x = 1.32

Divide 12 on both sides

x = 0.11

This pattern follows the rule divide by 3, then add 7. What are the next two numbers?

294, 105, 42, ________, ________

Question 8 options:

14, 7


21, 14


38, 34


49, 56

Answers

Answer:

21, 14

Step-by-step explanation:

by dividing 3 from 42 you get 14, and by adding 7 you get 21. And finally by devifing 3 from 21 you get 7 and by adding 7 to 7 you get 14.

The answer is 21, 14!

what is 21 divided by 3 + (8 -2 +2)

Answers

15 Bc is u do (8-2+2) it’s still 8 so 21 divided by 3 is 7 plus 8=15

Answer:

15

Step-by-step explanation:

21/3+(8-2+2)

PEMDAS

In the parentheses, we can easily learn that the minus two plus two cancels each other out.

21/3+8

7+8

15

If anything is confusing, let me know and I'll explain it more.

please answer (will rate 5 stars

Answers

7a and 7c are true. 7b is false

LAST ONE! PLEASE HELP ITS THE FINAL QUESTIONS FOR ME TO FINISH THIS DEATH TRAP

Answers

6(n-50) so the answer is A I think good luck

A reindeer can run 20 1/4 miles in 3 hours. At this rate how many miles does he run in 1 hour ?

Answers

Answer:

6.75 miles

Step-by-step explanation:

20.25 / 3 = 6.75

6.25 miles

20 1/4 miles is 20.25 so if you divide 20.25 by 6 you would get 6.25 miles or 6 1/4 miles

Is 3 3/4 in its simplest form?

Please put its simplest form if it has a simplest form

Answers

Answer:

that is the simplist form 3 3/34

Step-by-step explanation:

It’s simplest form, because it’s simplified all the way

A random sample of people were surveyed on their favorite sport. The results are in the table.What is the probability that those 55 or older hate sports?

Answers

Answer:

23

Step-by-step explanation:

what

Answer:

14.3

Step-by-step explanation:

6/42 = 14.2857%

rounds to the nearest tenth of a percent!

Which equation is a function of x?
x = 5
x = y squared + 9
x squared = y
x squared = y squared + 16

Answers

Answer:

x squared = y

Step-by-step explanation:

Functions

Things can get more complicated, but based on the examples given, for an equation to be a function of x, it must have a single y, where the y is not raised to a power.

Option 1:  x=5

This equation doesn't have a y, so it isn't a function of x.

Option 2:  x = y squared + 9

This equation has y raised to a power, so it isn't a function of x

Option 3:  x squared = y

This equation has a y, and the y isn't raised to a power.  This is a function of x.

Option 4:  x squared = y squared + 16

This equation has y raised to a power, so it isn't a function of x

Determining functions graphically

If the equations are graphed, the graphs must pass a vertical line test (a vertical line drawn anywhere should not intersect the graph more than once).


Option 1:  x=5

x=5 represents a vertical line, so it fails the vertical line test (the vertical line would overlap and intersect it infinitely many times).

Option 2:  x = y squared + 9

x = y squared + 9 is a sideways parabola.  A vertical line will cross it twice in several places

Option 3:  x squared = y

x squared = y is a parabola that opens upward.  It will pass the vertical line test

Option 4:  x squared = y squared + 16

x squared = y squared + 16 is a hyperbola (fancy graph shape) that won't pass the vertical line test.

Use the Distributive Property to simplify the expression 8(5x−9)

Answers

Answer:

Step-by-step explanation:

8(5x - 9)

= 8(5x) - 8(9)

= 40x - 72

Hope it helps :)

The answer is 40x-72

B. Now, assume that all of these circles have a radius of two. Then, calculate the ratio of a proximate circumference to the diameter.

Answers

Answer:

I think b is the answer hopefilly

I think the answer would be B

what is thissssssss????? pls help

Answers

The answers is 8 and 9

How do you finish this math equation?

3≤7+g
g≥ ?

Answers

Answer:-4

Step-by-step explanation:

Answer:

3 ≤ 7 + g

7 + g ≥ 3

g ≥ 3 - 7

g ≥ -4

Ms. Sacco needs to have her car repaired, but she does not want to spend more than $375 for the repairs. The mechanic says that the part needed for the repair will cost $100 and the labor will cost an additional $40 per hour. Which inequality below represents the greatest number of hours the mechanic can work without exceeding Ms. Sacco’s budget? *

A. 140x ≤ 375
B. 40 + 100x > 225
C. 100 + 40x ≤ 375
D. 100 + 40x > 375

Answers

Answer:

I believe it is C

Step-by-step explanation:

Answer is C YES Bacause I know and I know cus it's true
Other Questions
need help im struggling Please help with my spanish ! I'm begging Type the correct answer in each box. Use numerals instead of words. If necessary, use / for the fraction bar(s). 3 to the power 6/5The expression above can also be written in the form ca^b.For this expression, a = , b = , and c = . can you please help me out guys I will mark u B Find the volume of x. A square pyramid with base edge 10 centimeters and height 12 centimeters, what is the Volume? 41Ms de unoEscribe. Rewrite the following sentences changing them into their plural forms How many particles are in 1 mole of CO2? 35 points!!Janelle is in high school and is interested in going into a nursing/medical profession. She has done some research, created a table, and found that each career requires a different level of education and training, resulting in different potential salaries.Relative to Janelles research, explain how education and training impact career options and future earning potential. In an office, there are 75 women and 125 men .Find the ratio ofthe number of men to the number of women. Why did scientists prior to 1977 believe that only very basic life does existed in the deep ocean? A. They thought that the currents were too strong.B. They thought that hydrothermal vents released poisonous gases.C. They thought that there was no substantial food source.D. They thought that the temperatures were too cold. What are the layers of earth including the lithosphere and the asthenosphere? Which is the solution to the inequality?2 3/5Will give you Brainiest Thomas Jefferson's belief that government can do only what the Constitution specifically says is known as loose construction. implied powers. necessary and proper powers. express powers. is this a good introduction yes or no? If in the textile markets we know that two brands, X and Z, are substitutes. Suppose that the supply of X increases and, at the same time, the supply of the Z decreases. Other things being equal, what would be the expectations for the change in the equilibrium quantities in the two markets Simplify.(-2)^-3A.) 8B.) 1/8C.) -8D.) - 1/8 Find the value of x in the triangle shown below.159 cube root of 0.064a) 4 b) 0.04c) 0.4d) 0.004 A pachyrhinosaurus weighed approximately 4 tons and( traveled in herds but that does not matter)what would the weight of 8 pachyrhinosaurus have been in pounds?