The tailor determines that the cost of material varies directly with the amount of material. The cost is $42 for 14 yards of material. What is the cost for 70 yards of material?

Answers

Answer 1

Answer:

[tex]the \: cost \: for \: 70 \: yards \: of \: material \: is : \\ \: \$210.[/tex]

Step-by-step explanation:

[tex]let \: the \: cost \: of \: material \: be \to \: c_{m} \\ let \: the \: amount \: of \: material \: be \to \: a_{m} \\ then \: the \: expression \: is: \\ c_{m} \: \alpha \:a_{m} \\ c_{m} \: = k a_{m} \\ if \: c_{m} = 42 \: and \:a_{m} = 14 \\ then \: \to \\ k = \frac{c_{m} }{a_{m}} = \frac{42}{14} \\ k = 3 \to \: this \: is \: the \: variation \: constant. \\ when \: a_{m} = 70 : \: then \to \\ c_{m} = k a_{m} = 3 \times 70 \\ \boxed{ c_{m} = \: 210}[/tex]

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Related Questions

Need help with question 5!!!!! ASAP PLEASE!!!

Answers

Answer:

B. 2-5 the answer is B. 2-5

Answer:

I think b

Step-by-step explanation:

Since the time series has trend and seasonal pattern, to forecast the quarterly sales of the textbook, the following regression equation was found: stack y t with overparenthesis on top equals 2120 space minus 620 space Q t r 1 space minus space 1320 space Q t r 2 space plus space 290 space Q t r 3 space plus space 24 space t , where Q t r 1 , Q t r 2and Q t r 3 are dummy variables corresponding to Quarters 1, 2 and 3, and t = time period. The sales in Quarter 4 of the next year are predicted to be

Answers

Answer:

Y(2)= 2120+ 48= 2168

Step-by-step explanation:

The given equation is

Yt= 2120 - 620 Qtr 1 t -1320 Qtr 2 t + 290 Q tr3 t + 24 t

Taking the quarter 1 , 2 and 3 to be dummy variable the predicted sales for the 4th qtr are

Yt= 2120 - 620 Qtr 1(0) -1320 Qtr 2(0) + 290 Q tr3 (0)  + 24 (1)

Y(1)= 2120 + 24 = 2144   ( for year =1)

Y(2)= 2120+ 48= 2168    ( for year =2)

Y(3)= 2120 + 72= 2192   ( for year =3)

where t is the number of years.

So for the next year the fourth quarter sales are predicted to be 2168.

A principal of $1700 is invested at 6% interest, compounded annually. How much will the investment be worth after 13 years?

Answers

Answer:

$3626

Step-by-step explanation:

1700*(1+0.06)^13=3625.978

$4.99 for 6 cans or $7.99 for 10 can

Answers

I would put $7.99 for 10 can

Answer:

$7.99 for 10 cans

Step-by-step explanation:

83 cents per can or 78 cents per can

It is cheaper to do 7.99 for 10 cans

Which of the following graphs represent a function

Answers

Answer: A

Step-by-step explanation:

Verticals line test

Answer:

A

Step-by-step explanation:

on edge 2021

Simplify.
-9 -5 -7
х
Y Z
2 6 3
X Y Z

Answers

Answer:

[tex] = {x}^{ - 11} {y}^{ - 11} {z}^{ - 10}[/tex]

Step-by-step explanation:

[tex] = \frac{ {x}^{ - 9} {y}^{ - 5} {z}^{ - 7} }{ {x}^{2} {y}^{6} {z}^{3} } \\ = {x}^{ - 9 - 2} {y}^{ - 5 - 6} {z}^{ - 7 - 3} \\ = {x}^{ - 11} {y}^{ - 11} {z}^{ - 10} [/tex]

PLEASE NEED IT ASAP You'll get brainliest Find the distance between the two points in simplest radical form. (0,-1) and (3,-5)​

Answers

Answer:

5

Step-by-step explanation:

first you have to subtract x for example 0-5 square and use it on y and then square root both of them you will got the answer

how many centuries are the same as 700 years?

Answers

Answer:

7

Step-by-step explanation:

700/100

The points ​(​12,14​) and ​(42,​49​) form a proportional relationship. Find the slope of the line through the points. Then use the slope to graph the line.

Answers

Answer: 5/2

Step-by-step explanation:

49 - 42/ 14 - 12

Simplify: 2x + 4y - x + y

Answers

Answer:

x+5y

Step-by-step explanation:

Answer:

1x+5y or x+5y is it simplfyed

Is 3b-8=13;-7 a solution?

Answers

Answer:

See below

Step-by-step explanation:

[tex]3b-8=13 \implies 3b=21 \implies \boxed{b=7}[/tex]

[tex]-7 \text{ is not a solution for the equation}[/tex]

The fourth graders and fifth graders at Valley Point Elementary are going on a field trip. There are 148 fourth graders and 96 fifth graders. There are also 18 teachers going. If 54 people can fit on one bus, how many buses are needed for all of the students and teachers?

Answers

Answer:

5

Step-by-step explanation:

Emilio’s family volunteers at the local soup
kitchen every 30 days. Emilio has swimming
lessons every 9 days. He has both activities
this Saturday. When will he have both
activities again on the same day?

Answers

Answer:

Emilio will have both activities again on the same day after 90 days from this Saturday.

Step-by-step explanation:

To solve this question list the multiples of 30 and 9 to find the first common multiple because the two activities will happen again in a number divisible by both 30 and 9.

∵ The multiples of 30 are: 30, 60, 90, 120, ............

∵ The multiples of 9 are: 9, 18, 27, 36, 45, 54, 63, 72, 81, 90, 99, .....

→ The common multiple is 90

∴ The common multiple of 30 and 9 is 90

→ That means the activities will meet again after 90 days from

   this Saturday

Emilio will have both activities again on the same day after 90 days from this Saturday.

I'm giving ⚡️ 100 POINTS ⚡️ for a hella easy question, its provided in the picture i mark BRAINLIEST

Answers

it should be 7,620 since 10x10x10 is 1,000 and you multiply that by 7.62 and it equals 7,620

Answer:

7620 is the answer.

Step-by-step explanation:

7.62 × 10^3= 7.62 × 1000= 7620

If you like this answer then mark this answer as BRAINLIEST answer.....

Thank you ☺️☺️

A chain of car dealership got a shipment of 9,240 new cars. There are the same number of cars in every color. How many colors could there be?​

Answers

Answer:

9,420 colors making exactly 1 car of each color exist

Step-by-step explanation:

Since there is no additional information, such as the number of colors we have to assume the maximum. Since there are over 10 million colors that exist and there is at least one car of each color, then there would be a maximum of 9,420 colors making exactly 1 car of each color exist. On the other end of the spectrum would be 2 colors making 4,710 cars of each color.

The number of different possible colors of vehicle can be found using the relation

[tex] \frac{9240}{c} [/tex]

The number of cars shipped = 9240

The number of cars belonging to each different color is the same

The number of different colors possible :

Total number of shipment ÷ Number of cars belonging to each color

If the Number of cars belonging to each color = c

The number of different possible colors can be obtained using the expression :

[tex] \frac{9240}{c} [/tex]

Learn more :https://brainly.com/question/18109354

I’ll Give BRAINLIEST Just Help Now

Answers

Answer:

I cant see the thing just dont the answers down pls i can help just cant see the pic

Step-by-step explanation:

Answer: x= 60 degrees, y=25 degrees

ABC is equilateral so all angles are 60.

Therfore, we know that angle bcd must be 120 degrees.

Triangles are 180

120+35= 155

180-155= 25

hope this helps!!

I need help with number 8

Answers

9514 1404 393

Answer:

  see attached

Step-by-step explanation:

The square roots are approximately ...

  √5 ≈ 2.23

  √17 ≈ 4.12

  √56 ≈ 7.48

  √88 ≈ 9.38

  √118 ≈ 10.86

These are plotted below.

Here’s the correct answer. Hope this helps. Mark me as the brainliest

explain the polar form in mathematical terms ....... right answer will be mark as brainliest​

Answers

The polar form of a complex number is another way to represent a complex number. The form is called the rectangular coordinate form of a complex number. The horizontal axis is the real axis and the vertical axis is the imaginary axis.

...................................

Evaluate 2p - 3r + t for p = 10,
r = -4 and t = 5.

13
37
8

Answers

Answer:

37

Step-by-step explanation:

[tex]2p - 3r + t[/tex]

p = 10

r = -4

t = 5

Substitute values into the given equation

[tex]2(10) - 3( - 4) + 5[/tex]

Simplify

[tex]20 + 12 + 5 \\ \\ = 37[/tex]

SHOW WORK ILL MARK BRAINLIST !!!!

Answers

Answer:

Let's see what to do buddy....

Step-by-step explanation:

_________________________________

Step (1)

[tex]f(x) = 3x - 2[/tex]

[tex]g(x) = {x}^{2} - 5 [/tex]

_________________________________

Step (2)

We need to find f(2) first ;

To do this we must put 2 instead of the x in f(x) function.

Let's do it :

[tex]f(2) = 3(2) - 2[/tex]

[tex]f(2) = 6 - 2[/tex]

[tex]f(2) = 4[/tex]

_________________________________

Step (3)

Now we are going to find g( f (2) ) ;

Look :

[tex]g( \: f(2) \: ) = g(4)[/tex]

So we want to find g(4) ;

which means we must put 4 instead of the x in g(x) function.

Let's do it :

[tex]g(4) = ({4})^{2} - 5 [/tex]

[tex]g(4) = 16 - 5[/tex]

[tex]g(4) = 11[/tex]

_________________________________

And we're done.

Thanks for watching buddy good luck.

♥️♥️♥️♥️♥️

The lines represented by the equations 25y
10x = 200 and 5y + 2x = 40 are
neither parallel nor perpendicular
perpendicular
the same line
parallel

Answers

Answer:

C: The Same Line

Step-by-step explanation:

So to start we need to first know what makes lines parallel or perpendicular. Two parallel lines will have the same slope, but different y-intercepts because we know they never cross. Two perpendicular lines will have opposite-reciprocal slopes, because we know that they intersect at a right angle.

Then, we  need to know the slope-intercept form of an equation. The slope intercept form is [tex]y=mx+b[/tex] where [tex]m[/tex] is the slope of the line and [tex]b[/tex] is the y-intercept. We can see that neither equation is in this form, so we have to convert it.

Starting with the first, (I assume despite the typo) we have [tex]25y+10x= 200[/tex]

So we need to isolate the [tex]y[/tex] from everything else.

First, we'll subtract [tex]10x[/tex] from both sides of the equal sign to get [tex]25y=-10x+200[/tex]

Second, we'll divide both sides by [tex]25[/tex] to get [tex]y=-\frac{2}{5} x+8[/tex]

This means that [tex]-\frac{2}{5}[/tex] is the slope and [tex]8[/tex] is the y-intercept of the first line.

Now onto the second we have [tex]5y+2x=40[/tex] so we're going to follow the same steps to isolate [tex]y[/tex].

First, we'll subtract [tex]2x[/tex] from both sides to get [tex]5y=-2x+40[/tex]

Second, we'll divide both sides by [tex]5[/tex] to get [tex]y=-\frac{2}{5}x +8[/tex]

This means that [tex]-\frac{2}{5}[/tex] is the slope and [tex]8[/tex] is the y-intercept of the second line.

Since both of the lines have a slope [tex]-\frac{2}{5}[/tex] we know that they are parallel, so we need to check to check if they're the same by looking at the y-intercept. We can see that [tex]8[/tex] is the y-intercept of both lines, so they would be the same line.

Please help and give answers correctly for brainliest please i really need help

Answers

Answer:

a: copper wire is the largest

b: he will have both 32 if he cuts the copper shorter

Step-by-step explanation:

Adrian spent $19.35 on school supplies he bought two poster boards for $2.25 each he spent the remaining amount on notebooks that cost a dollar 65 each how many notebooks did Adrian Buy​

Answers

9 because when you subtract the amount of poster money from the total ($19.35), you get $14.85. $14.85 divided by $1.65 is 9, which means he bought 9 notebooks.

Answer:

9

Step-by-step explanation:

Study Island


“I think of a number, multiply it by 2, subtract 3 and multiply the result by 4."

Answers

Answer:

33x2=66

66-3=62

62x4=248

Is this a question for a test cause if it is i'm gonna feel embarrassed

y=-6x^2+100x-180
what are the zeros in this function? what do the zeros mean in context​

Answers

Answer:

If soccer balls are sold for $2.05 or $14.61 each, the store will break even but will not make a profit.

Step-by-step explanation:

WILL MARK BRAINLIEST Given a the line y=2.5x+4, find line whose graph: b intersects with the graph of the given line.

Answers

Your equation will be y=4x-1 and the intersection point will be (2,9). Hope this helps!

-4x + 3 - 7x -8
Does anyone know the answer?

Answers

Answer:

-11x -5

Step-by-step explanation:

MARK BRANIEST

Answer: -11x-5

Step-by-step explanation: First, combine like terms which means -4x and -7x which gives you -11x, and then you combine 3 and -8 which gives you -5. Then it gives you to -11x-5

I love you the way you are c:

Answers

Answer: Be careful on you love

Step-by-step explanation: I got heartbroken

Find f(-5) × f(-3) f(x) = - x - 12

Answers

Answer:

63

Step-by-step explanation:

Step 1: Define

f(x) = -x - 12

f(-5) is x = -5

f(-3) is x = -3

Step 2: Find f(-5)

f(-5) = -(-5) - 12

f(-5) = 5 - 12

f(-5) = -7

Step 3: Find f(-3)

f(-3) = -(-3) - 12

f(-3) = 3 - 12

f(-3) = -9

Step 4: Find f(-5) × f(-3)

-7 × -9

63

Five friends shared 2/3 bags of popcorn. how much popcorn did each friend eat?​

Answers

Answer:

Each friend will get 2/15ths of the popcorn.

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