a) 2-x,when x=5
b) 3x+2x,when x=4
c) (3n+2)(n-4)
________ ,when n=5
2n​


PLEASE HELP MEEE

Answers

Answer 1

Answer:

a) 2-5 = -3

b) 3(4) + 2(4) = 20

c) (3(5)+2)(5-4) = 17

Step-by-step explanation:

Substitute the variables for their values and then solve from there. Hopefully this helps, I don't know if I answered your question fully.

Answer 2

Answer:

8w+24x-16

Step-by-step explanation:


Related Questions

I forgot how to simplify like this can someone explain to me how i do this?

Answers

Answer:

Just subtract 11 from 7.

Answer:

-4

Step-by-step explanation:

Maribel deposited $1,500 in a new account at her bank. -The bank pays 4.5% annual simple interest on this account. -Maribel did not make any additional deposits or withdrawals. What is the balance of the account at the end of five years?

Answers

Answer:

1500+337.50 = $1,837.5

Step-by-step explanation:

You want to calculate the interest on $1500 at 4.5% interest per year after 5 year(s).

The formula we'll use for this is the simple interest formula, or:

I = P x r x t

Where:

P is the principal amount, $1500.00.

r is the interest rate, 4.5% per year, or in decimal form, 4.5/100=0.045.

t is the time involved, 5....year(s) time periods.

So, t is 5....year time periods.

To find the simple interest, we multiply 1500 × 0.045 × 5 to get that:

The interest is: $337.50

-1
A line's y-intercept is 0, and its slope is
20
What is its equation in slope-intercept form?
Write your answer using integers, proper fractions, and improper fractions in simplest form.
Submit

Answers

Answer:

y=20x

Step-by-step explanation:

do do I intercept a zero, so you don't have a "b"

The slope is 20. that's pretty self-explanatory

2 × 10 + 10 – 8 = ? show work

Answers

2 x 10 = 20
10 - 8 = 2
20 + 2 = 22
Answer: Umm, 2 x 10+10-8=22

2 x 10=20
20+10=30
30-8=22

(HELP! I HAVE NO TIME) At 2pm, a store had sold 15 packs of toilet paper. By 5pm, the store had sold 57 packs of toilet paper. What is the average rate of change?

Answers

[tex]\mathrm {Hey, there!}[/tex]

Let's solve your problem:

The answer would be 280%.

We know the following information:

2pm - 15 toilet paper rolls

5pm - 57 toilet paper rolls

We have to find the percent rate of change.

Here is how we will do this problem:

First, Set up a ratio:

Change in the quantity [15 - 57]

-------------------------------------

Original quantity [15]

57 - 15 = 42

Next, we will divide. the ratio.

Given quantity - 42

Number of packs sold at 2pm - 15

Fraction - 42/15

Convert the fraction to a decimal.

Fraction - 42/15

Decimal - 2.8

Make the decimal to a percent.

Decimal - 2.8

Percent - 28%

Add a zero to the 28.

Our answer is 280%

Answer:

14 packs per hour

Step-by-step explanation:

2pm ⇒ sold 15 packs  5pm ⇒ sold 57 packs

Average rate of change = change in sale/ change in time

(57 - 15) / (5 - 2) = 42/3 = 14 packs per hour

Some paint is made by mixing 3 cans of white paint to 7 cans of green paint. How many cans of white would you mix with 21 cans of green to keep the colour the same?

Answers

Well to get to the point
21 / 7= 3
So I then would multiply the 3 by 3 which would give me 9
And just to check your answer 7 x 3 is 21
So your answer would be 9

12,400 × [] = 124

What number should go in the box to make the equation true?

Answers

Answer:

100

Step-by-step explanation:

inverse operation: 12,400 divided by 124

Find the missing side lengths of each triangle.


Answers

since it’s an isosceles triangle, KM = LM.
4d - 13 = 12 - d
5d = 25
d = 5

hence,
LK = d + 6
= 5 + 6
= 11

what is the greatest common factor of 10 & 12,17 & 51,78 & 48,11 & 55,88 & 66,95 & 38,6 & 27,56 & 49,60 & 45,42 & 63,38 & 40,81 & 54,40 & 80,46 & 69

Answers

yeah baby girl it will be best for you to look that up on Google

Solve the equation 186+10x=25.5x to find how many diving lessons x Jacy can take for the cost to be the same with and without a membership.

__ lesson(s)

Answers

Answer:12 lessons

Steps in image below:

The number of lessons that take for the cost to be the same with and without a membership will be 12.

What is the solution to the equation?

The distribution of weights to the variables involved that establishes the equilibrium in the calculation is referred to as a result.

The equation is given below.

186 + 10x = 25.5x

Simplify the equation, then we have

25.5x - 10x = 186

15.5x = 186

x = 186 / 15.5

x = 12

The number of lessons that take for the cost to be the same with and without a membership will be 12.

More about the solution of the equation link is given below.

https://brainly.com/question/545403

#SPJ2

Which graph represents the function -2x - 5y = -10?
Please explain!!

Answers

The answer would be J because if the equation was transferred into a positive then it would be 2y and 5x marking 5x on the bottom and 2y vertically.
Hope this helps!!

Answer:

Graph J represents the function -2x-5y=-10

Step-by-step explanation

To find the answer you have to find the y and x-intercepts first. To find the x and y-intercept I came up with two equations; -5y=-10 and -2x=-10. I came up with these equations because I'm finding the intercepts, so I know I have to substitute x and y with 0 one at a time. To solve the first equation I just divided -5 from both sides and got y=2, so my first intercept is (0, 2). I solved the second equation by dividing -2 from both sides and got x=5 which means my second intercept is (5, 0). Now I graph the two points on a graph and connect the dots, which turns out to be graph J on your image.

Hoped this helped you : )

WUTS THE ANSWER IM SO LOST I NEED HELP!!! :(

Answers

1/6 = 0.16 acres in 8 minutes.

--

0.16  ÷ 8 = 0.02 acres mowed in 1 minute.

--

(60 minutes in an hour)

0.02 x 60 = 1.2 acres mowed in an hour.

--

1.2 is equal to 1 1/5, and jami needs to mow 1 1/2 acres. so no, jami cannot mow 1 1/2 acres in an hour.

Solve the following system of equations:
Y=x^2+4x+4
Y=x+2
What is the value of y?

Answers

Answer:

y=4, y=2

Step-by-step explanation:

trying this again not sure if it went through the first time

Answers

The picture is really blurry for me. I can't read it...

Please help this is due tonight my future depends on it.

PROBLEM:
The cost of a pizza varies directly as the square of its radius. If a pizza with a 1 inch radius costs
$3.25, how much should a pizza with a 6 inch radius cost?

Answers

Answer:19.5

Step-by-step explanation:

3.25x6

Answer:

$19.50

Step-by-step explanation:

3.25*6

=19.50

If John is leaving a 15% tip on $24 what is the amount of money he is leaving?

Answers

Answer:

Just the tip: $3.60, Total amount: $27.60

Step-by-step explanation:

Multiply 24 by 0.15 to find what 15% of 24 is.

Solve the formula for the specified variable.

f=m+n+p/2
pls hurry I need help
ill give brainliest

Answers

Answer:Given equation as

x-2/2=m+n

1) x=2(m+n)+2

2)h=2A/b

3) 23

4)-81

5) 17/7

6) 8

7) 4 hours

8) width is 4.5 length is 7.5

9)  got wrong didn't answer

10)  got wrong picked never true

11) two points I only got 1 I picked you overdrew on the account by 36.00 so I guess the other is the acount has a balance less than

Step-by-step explanation:

In this we have to isolate x. So for this firstly we will multiply both side of equation by 2.

Now we can add 2 in both side

Nick and his family traveled by train to New York City. The clocks show when the train left the station and when it arrived in New York City. How long was the train ride?

Answers

Answer:

Answer: 4 hr 15 min is the right answer

Help find domain and range

Answers

the answer is 2 because you plug 2 in 3x
Yo jus use desmos.com. It’s really good for graphing and tells you all the important intersecting points on a graph.

A section of a railway has a slope of approximately 0.47. In this section, a vertical change of 1 unit corresponds to a horizontal change of what length? Round your answer to the nearest hundredth.

Answers

Step-by-step explanation:

A slope of 0.47 means that, for every 100 feet of horizontal change, the vertical rise = 47 feet

We can use a proportion here

0.47 / 1 = 1 / x

Cross-multiply

0.47x = 1*1

0.47x = 1

Divide both sides by 0.47

x = about 2.13 units

could someone help me with slope cause I am struggling a little bit​

Answers

Answer:

mmmmmmmmm sus

Step-by-step explanation:

How do you make a word problem out of an equation? (ex:Create a word problem that defines the following equation: 129+3x=1,000)

Answers

Answer:

I think of a number and multiply it by three, when I add it with 129 my answer will be equal to 1000. what is the number

As a fundraiser, the Robotics team is selling cookies. The cost to make each cookie can be written as c(x)=0.25x+0.5 and the functions that represents the amount they sell the cookie for can be written as s(x)=2x. Write a function represents the profit, P(x)

Answers

Answer:

The profit is 1.75x-0.5

Step-by-step explanation:

Mathematically,

profit = sales - cost

So with respect to this case, we have that;

Profit = s(x) - c(x)

Profit = 2x - (0.25x + 0.5)

Profit = 2x - 0.25x -0.5

Profit = 1.75x - 0.5

if you want brainiest than come here

go to remind.com then log in as student then put the class code: c26kda4

Answers

What will happen once we enter that class code?

(5x-2)cm (3x+14) what is the length of the sides

Answers

Answer:

5xcm−2cm

Step-by-step explanation:

sry if im wrong

What graph shows the linear equation y = 1?

Answers

Answer:

I don't see a picture; where are the graphs?

Answer the question please:
The correct answer will be marked as brainliest =)
thanks xoxo

Answers

Answer:

The answer is 5^-4.

Hope this helps and if you could mark this as brainliest. Thanks!

Answer:

[tex]\frac{1}{5^{4}}[/tex]

Step-by-step explanation:

[tex]\frac{a^{m}}{a^{n}}=\frac{1}{a^{n-m}},[/tex]   if n >m

[tex]\frac{5^{3}}{5^{7}} = \frac{1}{5^{7-3}}=\frac{1}{5^{4}}[/tex]

Jesse and Jonah are making party favors. Jesse has made 108 favors and Jonah has made x number of favors. If they have made a total of 550 favors, how many has Jonah made?

Answers

108+x = 550

550-108= 442

Jonah made 442 party favors .

One of your friends gives you $10 for a charity walkathon. Another friend gives you an amount per mile. After 5 miles, you have raised $13.50 total. Write an equation in slope-intercept form that represents the amount y of money you have raised after x miles.

y=

Answers

Answer:

y  = 0.70x-  10.00

Step-by-step explanation:

--  Since one friend gave you 10.00 ,subtractthis from the 13.50 to give you the amount earned by walking the 5 miles

--  13.5-10.00  =  $3.50  

--  Since you walked 5 miles, divide by 5 to give you 0.70 per mile earned.

So, an equation that represents the amount of money earned is:  

y  = 0.70x-  10.00  . This is in slope-intercept form; the slope is $0.70 and represents the amount of money earned per mile  and the intercept is $10.00 and represents the initial amount of money that you were given.

Valerie bought a guitar at a sale price of S = 0.8g, where g represents the original cost of the guitar. Which expression shows the sale price in a way that emphasizes the percent discount that she received? A S = (1 + 0.8). B S= (1 +0.2) g C S= (1 - 0.8). D S = (1 – 0.2) g​

Answers

Answer:

D S = (1 - 0.2)g

Step-by-step explanation:

The original price of the guitar was g.

She paid 0.8g.

0.8g = 0.80g = 80% of g

If she paid 80% of the price, that means the discount was 20%.

100% - 20% = 1 - 0.2

Subtracting 20% form the whole 100% of the price is the same as subtracting 0.2 from the whole price of 1.

Answer: D S = (1 - 0.2)g

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