Write an equation five times the difference of n less 3 equals 12

Answer:

x = 2; K = 0.98

Step-by-step explanation:

At time, t = 0, Volume of Water = 3,000 litres

After t hours , the Volume of water in the tank = Vt

At the end of every hour there is a x% less water in the tank then at the start of the hour

After 1 hour, volume of water left Vt = V1

V1 = 3,000 - 3000 × (x/100)

V1 = 3,000 - 30x

After 2 hours, Volume of water left is V2

V2 = (3,000 - 30 x) - (3,000 - 30 x) × (x/100)

V2 = (3,000 - 30 x) - (3000x - 30x²)/100

V2 = {100(3000 - 30x) - x(3000 - 30x)} /100

V2 = {(3000 - 30x)(100 - x)}/100

Recall, V2 = 2881.2

Therefore

{(3000 - 30x)(100 - x)}/100 = 2881.2

(3000 - 30x)(100 - x) = 288120

300000 - 3000 x - 3000 x + 30 x² = 288120

30 x ² - 6000 x + 11880 = 0

Dividing both sides by 30

x² - 200 x + 396=0

Factorizing:

(x -198)(x-2) = 0

x = 198 or x = 2

Since the percentage by which the water reduces cannot be greater than 100, x = 2 is chosen.

Step 2: Solving for k

Given that Vt=KtV0

K = Vt/V0

At t = 1

V1 = 3000 - 30x

V1 = 3000 - 30 × 2

V1 = 3000 - 60

V1 = 2940

K = 2940/3000

K = 0.98

Answer:

y=mx+c

there are so many

depends on the question

Step-by-step explanation:

Loads of equations

Answer:

wiring probably.

Step-by-step explanation:

Answer:

wait are you like clicking on answer? or explaning it

Step-by-step explanation:

Answer:

11<x

x>11

first u subtract 4 on both sides

which leaves u with 11 on the left and x on the right

I think It's 11 I'm not sure

Answer:

s(18 - x)-5 t(18x/2) is initial

they now have;

t( 9x) s(13-x)

Step-by-step explanation:

Answer:

Just use math-way or des-mos  and it will graph them for you.

Answer:

t+12

Step-by-step explanation:

brainliest por favor ❤❤

Answer:

t+12

Step-by-step explanation:

12 meters longer means that you're adding meters onto the throw. Hope that helps :)

Answer:

Please see the explanation.

Step-by-step explanation:

Let

[tex]f\left(x\right)=cosx[/tex]

By the first principle

[tex]f\:'\left(x\right)=\lim _{h\to 0}\left(\frac{f\left(x+h\right)-f\left(x\right)}{h}\right)[/tex]

          [tex]=\lim _{h\to 0}\left(\frac{cos\:\left(x+h\right)-cos\:x}{h}\right)[/tex]

           [tex]=\lim _{h\to 0}\left[\frac{cos\:x\:cos\:h-sin\:x\:sin\:h\:-\:cos\:x}{h}\right][/tex]

           [tex]=\lim _{h\to 0}\left[\frac{-cos\:x\left(1-cos\:h\right)-sin\:x\:sin\:h\:}{h}\right][/tex]

           [tex]=\lim _{h\to 0}\left[\frac{-cos\:x\left(1-cos\:h\right)\:}{h}-\frac{sin\:x\:sin\:h}{h}\right][/tex]

           [tex]=-cosx\:\left(\lim \:_{h\to \:0\:}\frac{1-cos\:h}{h}\right)-sin\:x\:\lim \:\:_{h\to \:\:0}\:\left(\frac{sin\:h}{h}\right)[/tex]

           [tex]=-cosx\:\left(0\right)-sinx\left(1\right)[/tex]

            [tex]=-sin\:x[/tex]

Answer:

1. During part 2. The y-axis (line going up) represents his distance. At part 1, his distance stays the same because he is sitting in the park. At part 2 we see the line go down, which means his distance from home is decreasing.

2.At part 3. His distance stays the same, which represents him waiting in line. We know this because the line stays at the same distance and the time increases(this is the x-axis)

3. There would be another part of the graph. If he had stopped again, there would have been another straight line with the distance the same and the time increasing.  

Step-by-step explanation:

Step-by-step explanation:

x-int

-7x=28

x=-4

(-4,0)

-4y=28. y-int

y=-7

(0,-7)

Answer:

This is a really complicated variable for me. I am very good at math though.

Step-by-step explanation:

13x - 14 = -118

13x = -104

x = -8

Answer:

251 ounces per gallon

Step-by-step explanation:

Delta Math

The density of a material 4 kg/cup on converting it into pounds per liter will be 37.2 lbs/lt.

What are derived units?

Defining a derived unit is the process of deriving a measurement unit from one or more of the seven base units of the International System of Units (SI). There are two types of derived units: dimensionless and the product of base units.

Here it is given that, the density d of a certain material is 4 kilograms per cup of volume and it is find the density of material in pounds per liter.

Now it is known that,

1 kg equals 2.2 pounds

and, 1 cup of volume equals 0.237 lt.

converting the density d of material in pounds per liter and Rounding it to the nearest tenth :

[tex]\begin{aligned}d&= 4\:\frac{\text{kg}}{\text{cup}}\\&=\:\frac{4\cdot2.2\text{ pounds}}{0.237\:\text{lt.}}\\&\approx 37.2\:\frac{\text{ pounds}}{\:\text{lt.}}\end{aligned}[/tex]

Therefore, the density of a material 4 kg/cup on converting it into pounds per liter will be 37.2 lbs/lt.

Read more about SI units at:

https://brainly.com/question/12750330

#SPJ2

Answer: i say its false

Step-by-step explanation:

Answer:

C and E

Step-by-step explanation:

C and E are the only ones that are the same and represent the excerpt

Hope this help s plz mark brainliest if correct :D

Answer:

the last answer and the 3rd one

Step-by-step explanation:

Answer:

n = 6

Step-by-step explanation:

2.3 × [tex]10^{9}[/tex] = (1 × 10³)(2.3 × [tex]10^{n}[/tex] )

(1 × 10³)(2.3 × [tex]10^{n}[/tex] ) = (1)(2.3) × (10³)( [tex]10^{n}[/tex] ) = 2.3 × [tex]10^{3+n}[/tex]

2.3 × [tex]10^{3+n}[/tex] = 2.3 × [tex]10^{9}[/tex] ⇒ 3 + n = 9 ⇒ n = 6

Answer:

Answer: C

Step-by-step explanation:

Answer:

gcf is 4

Step-by-step explanation:

Answer:

4(3+20)

Step-by-step explanation:

the 4 is the greatest common factor so i pulled it out and divided 12 and 80 to simplify

Answer:

3 out of 10

Step-by-step explanation:

you have to add them all up which  will equal 10 then there are 3 breads so the answer is 3 out of 10

Answer:

The probilites are in the middle its more likely to get 5 pizzas and less likely to get 2 cookies

Step-by-step explanation:

Took the test

Answer:

800 spectators

Step-by-step explanation:

Using the survey provided above, we can see that the survey population is a total of 150 spectators by adding up all of the spectators. Since only 50 spectators attended 5 or more games then that means that the percentage of the survey population that attended 5 or more games is ...

50 / 150 = 0.3333 or 33.33%

Therefore, if we are supposing that 2,400 spectators attended at least one game this season then we can multiply this population by the percentage of people who tend to attend 5 or more games in order to actually calculate the total number of people who will attend 5 or more games this season.

2,400 * 0.3333 = 800 spectators

Answer: B.60°

Step-by-step explanation:

Answer:

parallel

Step-by-step explanation:

Answer:

Parallel

Step-by-step explanation:

If you graph these on a graph the beginning part is the same however the second part (the 2 and 30) are different which would just show how far to space the lines because those are  the y-intercept and the fraction part is the slope

Answer:

me either jvyvyhvy

Answer:

T=90 G=30

Step-by-step explanation:

T=3G

20T+15G=2250

20(3G)+15G=2250

60G+15G=2250

75G=2250

Divide by 75

G=30

T=90 3(30)

Answer:

Hi... Your answer is... C=5

Answer:

x- none cause bunnies live for a year or two

Step-by-step explanation:

y- 4 cause it said only one bunny so 1 each month

Answer:

x- none cause bunnies live for a year or two

Step-by-step explanation:

y- 4 cause it said only one bunny so 1 each month

Answer:

Step-by-step explanation:2a-b

Answer:

2a-b

Step-by-step explanation:

We can start by grouping our A's and B's, while making sure to keep their individual signs.

For our A's, we get 3a-a and for our B's, we get 2b-3b.

When we simplify our A's, we get 2a and when we simplify our B's, we get -b.

After grouping them back together, you end up with 2a-b.

Answer:

24 cm

Step-by-step explanation:

(4+4) + (8+8)