PLEASE HELP 20 POINTS AND BRAINLIEST!!!! PLEASE HELP!!!!!

water is added or drained from a tank each day. The first day, 9/10 of a gallon is added to the empty tank. The second day, 7/10 of a gallon is drained from the tank. The third day, 8/10 of a gallon is added to the tank. The fourth day, 6/10 of a gallon is drained from the tank. The amount of water in the tank after 15 days is given by

9/10+(−7/10)+8/10+(−6/10)+⋯+3/10+(−1/10)+2/10.

Answer:

24

Step-by-step explanation:

40×60%=240 240÷100= 24%

Answer:

-400i

General Formulas and Concepts:

Algebra II

Step-by-step explanation:

Step 1: Define

z = -400i - 44.5

Step 2: Identify

Treat imaginary i as a variable. The imaginary part of z would be the entire term of i. Therefore, our answer is -400i

Area of a square:

A= side^2

= (6x + 1) ^2

= 36x^2 + 12x + 1  feet^2

Answer:

Not enought information

Step-by-step explanation:

Maybe put a picture?

Answer:

2C + 5F > 175

Step-by-step explanation:

C = croissant F = french bread

You make $2 for each C, $5 for each F.

Since you don't know the actual numbers, you would use the variable C and F for later.

Added together, it must be greater than $175, so use the > sign.

Answer:

2.00C + 5.00F > 175

Step-by-step explanation:

your proving is in photo

Answer:

39

Step-by-step explanation:

Alll the sides equal each other because of that curve u see at each angle, that curve means that the angles are the same, having the same angles means same sides, so just pick two equations to do this:

21 - x = 2x -3

add 3 to both sides

24 - x = 2x

add x to both sides

24 = 3x

divide by 3

8 = x

Now input 7 into the equations:

21 - x = 21 - 8 = 13

2(8) - 3 = 16 - 3 = 13

x + 5 = 8 + 5 = 13

Now add: 13 + 13 + 13 = 26 + 13 = 39

Another way for u to save time is remember how i said all the sides were the same? you could just solve one equation, so it'll be 13 and multiply that with 3 to get the perimeter since ur adding 13 three times anyway

So just a simple: 13(3) = 39

Answer:

x=15

Step-by-step explanation:

6+9=15

so x=15

B....................

Answer:

b. Arithmetic .

Step-by-step explanation:

b because  to get the next term you add 8.

Answer:

A.

Step-by-step explanation:

its A because I did this test

Answer:

16

Step-by-step explanation:

4*4=16

Answer:

let's take the side XW

x =( -4, -4)

w = (-4,-8)

x1= -4 & x2 = -4

y1 = -4 & y2 = -8

using formula

[tex]d = \sqrt{ (x2 -x1) ^{2} + (y1 - y2) ^{2} } \\ = \sqrt[ ]{ (- 4 - ( - 4)) + ( - 4 - ( - 8))} \\ = \sqrt{0 + 4 } \\ = \sqrt{4} = 2sq.unit \: \\ now \: area \: of \: square \: = {side}^{2} \\ so \: = \: {2}^{2} = 4square \: unit \: [/tex]

here we end :P

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Answer:

.53 pounds of dog food each day

Step-by-step explanation:

i divided 7 1/2  pounds by 14 days and i got 0.53571428571

Answer:

y = 25x + 50

Step-by-step explanation:

Answer:

44

Step-by-step explanation:

Just divide 660 by 15 to get 44.

If the length of AC equals 50, the length of the midsegment DE is 25.

Answer:

Step-by-step explanation:

c) corresponding angles postulate

Answer:

Line of best fit refers to a line through a scatter plot of data points that best expresses the relationship between those points. A regression involving multiple related variables can produce a curved line in some cases

Step-by-step explanation:

Answer:

Step-by-step explanation:

The total area of ​​the prism: A = 2 [3h² + 21h + 24]

The volume of the prism: V = h³ + 11h² + 24h

The area of ​​a rectangular prism is calculated by knowing the sides of the rectangular base (a and b) and its height (h)

A = 2 (ab + ah + bh)

The volume of a rectangular prism is calculated as the product of its dimensions:

V = a * b * h

b- a = 5 ⇒b = 5 + a  

Answer:

1.67 gallons

Step-by-step explanation:

Given that:

Original mixture contains 80% detergent and 20% water in a 15 gallon bucket.

New Mixture to contain 60% detergent and 40% water of 5 gallon bucket.

To find:

Volume of Pure water to be added to each 5 gallon bucket to obtain the new mixture.

Solution:

First of all, let us calculate the answer by adding pure water to 15 gallon bucket.

Let the number of gallon of water to be added = [tex]x[/tex]

New volume = (15+[tex]x[/tex]) gallons

Now, let us compare the number of gallons of water in the mixture before and after.

[tex]15\times 20\% + x = (15+x)\times 40\%\\\Rightarrow (3+x)\times 5 = (15+x)\times 2\\\Rightarrow 15+5x=30+2x\\\Rightarrow 3x=15\\\Rightarrow x =5\ gallons[/tex]

Therefore, to a 15 gallon bucket (80% detergent and 20% water)of detergent mixture, if we add 5 gallons of pure water , it will become 60% detergent and 40% water.

To a 5 gallon bucket, the number of gallons of water to be added = [tex]\frac{5}{3} =\bold{1.67\ gallons}[/tex]

Answer:

Your answer is (4,1).

Step-by-step explanation:

5x - 2y = 18

5(4) - 2(1) = 18

20 - 2 = 18

18 = 18 (Which means it's correct)

Let me know if you need anymore help!

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Explanation:

Draw a horizontal line from W to the y axis. You should arrive somewhere between -1 and -2. While this isn't exact, it looks like we should arrive right at the middle of -1 and -2; therefore we should get to -1.5

The y coordinate of W is -1.5

Keep in mind this is based on the assumption we reach the halfway point. Unfortunately, W is not on any horizontal grid lines to be able to determine exactly where W is along the y axis.

Answer:

d

Step-by-step explanation:

Answer:

0 is the surface of the sea

Step-by-step explanation:

Here, we want to know what zero represents

From the question, we are told that jumping 5 ft below the sea surface represents the depth

-5 ft is same as going 5 units below zero

So therefore, we can have zero representing the sea level

The zero in this case is the surface of the sea

Answer:

B. the surface of the sea

Step-by-step explanation:

have nice day

Answer:

9/100.

Step-by-step explanation:

9% is equal to about 9/100. 9/100 is the simplest form.

Answer:

I don't know nothing about this lol...

Step-by-step explanation:

Answer:

54°

Step-by-step explanation:

total angels is 360°

(15*100)/360 = 54°

Answer:

1 foot by 8 inches

Step-by-step explanation:

Answer:

25%

Step-by-step explanation:

Hopefully this is correct!