Mathematics High School

Can someone please help me understand this problem thanks

Answers

Answer 1

Answer:

Step-by-step explanation:

So we know that it cost $600 in material to build the couch,

and then we know it cost $2000 extra to install and setup the couch,

so it cost 2,600 to build and install one couch,

So the first answer is 2,600

Now to build and install 15 of them we do 2,600 x 15 = $39,000

So it cost 2,600 to make and install one

And 39,000 to make and install 15.

But it only cost $600 to build one

and $9,000 to make 15 without installation fees.

Related Questions

Find the number of ways of arranging N people in a straight line, if two particular people must always be separated.

Answers

Answer:

It’s the number of ways N people can be arranged in a straight line without restriction minus the number of arrangements in which the 2 people are together.

The number of ways N people can be arranged in a straight line without restriction = N!

The number of arrangements in which the 2 people are together = the number of possible positions for the left-hand person multiplied by the number of people who can be that person, multiplied by the number of possible arrangements for the other N - 2 people

= (N - 1) * 2 * (N - 2)!

= 2 (N - 1)!

So the number of ways N people can be arranged in a straight line if 2 particular people must be separated = N! - 2(N - 1)!

A truck can be rented from Company A for $120 a day plus $0.20 per mile. Company B charges $60 a day plus $0.40 per mile to rent the same truck. Find the number of miles in a day at which the rentals cost for company A and company B are the same.

please help..

Answers

Answer:

12 miles in a day.

Step-by-step explanation:

Variable x = number of miles

Company A: 120 + 0.20x

Company B: 60 + 0.40x

Set up an equation:

120 + 0.20x = 60 + 0.40x

60 + 0.20x = 0.40x

60 = 0.20x

12 = x

URGENT #2 !!!!!!!!!!!!

The value of a12 is:
2
0
1
can't be done

Answers

Answer:

Here is your answer

Hope it helps

9. Select one of the factors of 3x + 4x -4.
(x+4)
b. (3x+2)
a.
c.
(3x-2)
a (x-2)

Answers

Answer:

Step-by-step explanation:

mad

100 POINTS + BRAINLIST IF RIGHT. GEOMETRY
In problems 13-15 is the bisector of AC

Please help 13-15 I’m struggling so hard :(

Answers

Hello! I'm happy to help!

Question 13: First, we will need to find the value of x. We know that AB and BC are equal.

So, we can subtract x from both sides.

2x-8

-x

x-8

So, we get AB as x-8

x+17

-x

and BC as 17. We know that these are equal, so we need to find which x value will make them that way. In this case, x=25 because 25-8=17. We can now add back the x we removed earlier.

17+25=42

Therefore, both AB and BC have a value of 42. and AC will be the combined total.

42+42=84

So, for question 13, x=25, AB=42, BC=42, and AC=84.

Question 14: This question is similar, but we have an expression for AB and AC, instead of AB and BC. We still know that AB=BC, so we can also say that BC=x+6 also. To find x, we need to find a second expression that is equal to AC. We can ad AB and BC together to get that. (x+6)+(x+6)=2x+12. This expression is equal to the AC expression, so we can compare them to find x.

2x+12=3x-31

We need to single out the x on one side, by changing things in the same way on both sides.

2x+12=3x-31

-2x -2x

12=x-31

+31 +31

43=x

Now that we know our x value, we need to plug it in!

43+6=49

We now know that both AB and BC have a value of 49. Let's plug in the value for AC.

(43·3)-31

129-31

After plugging in the values, we know that AC is equal to 98. You could have also added AB and BC together, giving you 98 also.

To Summarize Question 14: x=43, AB=49, BC=49, AC=98.

Question 15: This one is very similar to the last, with a little more complexity to the expressions. First, let's simplify the expressions on AB and AC.

AB=3(3x-1) AB=9x-3

AC=5(2x+2) AC=10x+10

Now that we have the simplified expressions, let's solve. We need to find an equivalent expression for AC. We know that AB and BC are equivalent, and also add up to AC. We can copy the expression from AB to BC, and then add them

(9x-3)+(9x-3)=18x-6=AC

We now compare the two expressions in an equation to find x.

10x+10=18x-6

Again, we have to single out x on one side.

10x-10=18x-6

-10x -10x

10=8x-6

+6 +6

16=8x

This time, we need to divide both sides to single out x.

[tex]\frac{16}{8}[/tex]=[tex]\frac{8x}{8}[/tex]

2=x

Now that we have x, we need to plug it in to finish solving.

(9·2)-3

18-3

AB=15 BC=15

From here, you can do one of two things, add AB and BC together (easy), or plug in x for AC.

15+15=30 (10·2)+10

AC=30 20+10=30

AC=30

To Summarize Question 15: x=2, AB=15, BC=15, AC=30.

I'm always happy to help, keep learning! :D

The segments shown below could form a triangle? True or False

Answers

I believe it is true.

I hope this helps :)

Answer:

FALSE

Step-by-step explanation:

Use the Pythagorean theorem to check.

4²+3²=6² ?

16+9=36?

25≠36

What is the answer to the green box?

Answers

The bacteria increases 90% the formula adds the percentage, as a decimal to the 1.

The answer would be 0.90

Greg gives pepper a 12 second head start in a 2km race. If Greg runs at 5km/minute and pepper runs at 3km/minute. Who will win the race and buy how many second

I’d like a formula that i can use to these questions thanks :)

Answers

Answer:

greg, 4 seconds

Step-by-step explanation:

find how long it takes each person to run 2km first.

distance/speed:

pepper: 2/3 *60(seconds)=40 secondsGreg: 2/5 *60= 24 seconds

40-12=28 seconds, pepper will take 28 seconds to finish the race from the time greg starts. greg will win by 4 seconds

Identify as a monomial, binomial, or trinomial. x^3Y^2Z

Answers

Answer: Monomial

Step-by-step explanation:

2ax/3y is a monomial in three variables a, x and y.

PJ, A term is defined as a number, variable, or some combination of numbers and/or variables being multiplied together. Even though 2x has two parts (2 and x), since they are being multiplied together, 2x is considered a single term (a monomial expression).Mar 18, 2014

Answer:

monomial

Step-by-step explanation:

because it has only 1 term

The complete factorization of 12x² + 4x - 8 is:
(A) (3x + 1)(4x – 8)
(B) (4x + 4)(3x + 2)
(C) 4(3x² + x - 2)
(D) 4(3x − 2)(x + 1)
(E) 4(3x + 2)(x - 1)

Answers

Answer:

D is the correct answer.

See your levels
A rectangular vegetable patch is 7 meters long and 5 meters wide. What is its area?

Answers

7*5=35 its simple though

The common factor of 24aᴧ3bᴧ4, 36aᴧ4cᴧ4 and 48aᴧ3bᴧ2c is: pls don't spam sisters and brothers

(≧▽≦)( ◜‿◝ )♡

Answers

Answer:

The common factor is 12a³

Step-by-step explanation:

[tex] {24a}^{3} {b}^{4} , \: 36 {a}^{4} {c}^{4} , \: 48 {a}^{3} {b}^{2} c[/tex]

each term got a factor:

[tex] = 12 {a}^{3} [/tex]

by Find the value of 5% of 300

Answers

Answer:

Step-by-step explanation:

5/100*300

100 can be cut for 100 and 300

so 5/1*3

ans 15

Answer:

Percentage Calculator: What is 5 percent of 300? = 15.

Hope it helps you.

7 (x + 2) = ?x + ?
someone please help me

Answers

The answer of 7(x+2) is 7x+14

Find the volume of the triangular prism as pictured below with a = 10 cm,
b = 9 cm, and h = 8 cm. Do not include units in your answer.
a
Answer here
SUBMIT
Help!

Answers

Answer:360

Step-by-step explanation:

Which property is 5+ a = a + 5 ?
Select one:
O a. Commutative Property of Addition
O b. Identity Property of Addition
O c. Commutative Property of Multiplication
O d. Inverse Property of Addition

Answers

Answer:

[tex]commutative \: property \: of \: addition \\ thank \: you[/tex]

what is 6x - 4x please help

Answers

Answer:

Step-by-step explanation:

6x-4x

= x(6-4)

= 2x

2x the answer is

(6-4)x => 2x

Mike sold H hats. Nate sold three times as many hats as Mike. Write an expression for the number of hats Nate sold.

Answers

answer:

Step-by-step explanation:

H raise to power 3

Kareem runs 8 miles in 84 minutes. At the same rate, how many minutes would he take to run 6 miles?

Answers

He would take 63minutes to run 6 miles

Answer:

TIME TAKEN =63minutes or 1 h 3 min.

A __________ is a rule that assigns each value of the independent variable to exactly one value of the dependent variable.

Answers

Answer:

A function is a rule that assigns each value of the independent variable to exactly one value of the dependent variable.

Step-by-step explanation:

hope that it helped you

( x+y+z )² + 2( x+y+z ) +1

Answers

Answer:

[tex](x+y+z+1 {)}^{2} [/tex]

Step-by-step explanation:

[tex](x+y+z {)}^{2} +2(x+y+z)+1[/tex]

[tex](x+y+z+1 {)}^{2} [/tex]

Hope it is helpful....

Here is your answer hope this helps you.

please help me I need it for my homework

Answers

First put your 52 over 100 in a fraction form since it’s to the 100th place. Then You need to divide by 4 on top and bottom. Resulting in the final fraction of 13/25

The chorus sang for 27 minutes. If each song lasted an average of 4 1/2 minutes, how many songs did the chorus sing?

Answers

Answer:

6 songs

Step-by-step explanation:

27 divided by 4 1/2 or 4.5 equals 6 which mean they sang six songs.

Answer:

6, because 4.5 fits into 27 6 times.

Autumn bought a square frame for her desk that has an area of 361 square units.
What is the perimeter of the frame?

Answers

Answer: P=4a=4·361=1444

x square add 7x subtract 30 factorize

Answers

x²＋7x－30
＝x²＋10x－3x－30
＝x(x＋10)－3(x＋10)
＝(x＋10)(x－3)

Hope my answer helped u :)

17+5 plz show communitive property

Answers

Answer:

17+5=17+5

No matter what order you put them it will always be the same

Answer:

17+5=5+17

Step-by-step explanation:

17+5=22

5+17=22

At a small private college 9 / 20 of the students are female if there are 2160 female students how many male students

Answers

Answer:

4800

Step-by-step explanation:

x is the number of total students

x * 9/20 = number of female students

x * 9/20 = 2160

Multiply each side by 20/9

x * 9/20 * 20/9 = 2160 * 20/9

x =4800

Determine whether each relation is a function

Please help I dont wanna fail math this year

Thanks

(I am in Algebra 1 btw)

Answers

I don’t know heh but try scanning it

A) give a verbal description of the subset of real numbers represented by the inequality or the interval, B) sketch the subset on the rest of real number line, and C) state whether the interval is bounded or unbounded

Answers

An inequality is an expression which makes comparison between unequal expressions i.e. both sides of the inequality sign are not equal.

The verbal description of [tex]x > 5[/tex] is the set of all real numbers greater than 5 The interval is bounded (right bounded to be precise)

The inequality is given as:

[tex]x > 5[/tex]

[tex]x > 5[/tex] means x greater than 5

So, the verbal description is as follows:

The set of all real numbers greater than 5

To sketch [tex]x > 5[/tex] on a number line, we consider the following:

> means greater than; so, the arrow on the number line must point to the right[tex]> 5[/tex] implies that the arrow must start on 5> also implies that the circle on 5 must be an open circle

See attachment for the sketch

To determine if the interval is bounded or not, we do the following.

[tex]x > 5[/tex] means that the x starts at a value greater than 5, and the value of x has no end.

This is represented as: [tex](5,\infty)[/tex]

Notice that 5 is at the right, while [tex]\infty[/tex] is at the left.

This means that the interval is bounded (right bounded to be precise)

Answers

Answer:

3.81

Step-by-step explanation:

- + -

If you were to go all ways on this chart↑ the rules would always be the same.

A negative plus a negative is a negative.

A negative plus a positive is a negative.

A positive plus a postitive is a positive.

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