Please I could use all the help (no URL links)

Answer/Step-by-step explanation:

Direct proportion: If a variable increases then other variable also increases with a constant factor  i.e.  y = kx

Inverse proportion:  if a variable increases then other variable decreases with a  constant factor  i.e   xy = k

Assume that food will last for d days if 20 more persons join the camp.

Understand the fact that for given food number of days food last is inversely proportional to the number of persons hence product of days food lasts and number of persons is constant,

Days x number of persons = constant

Equate the product of 300 persons and 42 days  with (300 + 20) person and d days to solve for d.

[tex](300+20) *d=300*42[/tex]

⇒ [tex]d = \frac{12600}{320}[/tex]

⇒ [tex]d =\frac{1260}{32}[/tex]

⇒ [tex]d=\frac{315}{8}[/tex]

⇒ [tex]d=39.375[/tex] [tex]days[/tex] [tex]or[/tex] [tex]39(\frac{3}{8} )days[/tex] [tex]in[/tex] [tex]fraction[/tex]

Hence, if 20 more people Join (320 people ) it will last 39.375 days in decimal or 39 3/8 days in fraction

[RevyBreeze]

Answer:

5/8

Step-by-step explanation:

There are 8 square in the box and 5 are filled in, so it is 5/8.

Answer:

N/7 - 10 < -6

N/7 < 4

N < 28

Step-by-step explanation: hope it helps

Answer:

16

Step-by-step explanation:

first you gotta subtract until you get 7 then subtract again until you get -6

Answer:

When x=0 the friend is 200 miles from the restaurant and at x=5 the friend reaches the restaurant. When x=0 you are 100 miles from the restaurant, so 100 is the y intercept, and when x=5 you reach the restaurant so 5 is the x intercept. We have y=mx+100 and y=0 when x=5, so 0=5m+100 therefore m=-20 and the equation is y=-20x+100.

Answer:

406 percent

Please brainliest me i am begging you for god sake

There are 11 cups in 5 1/2 pints. There are .5 pints in 1 cup, 11 cups would be 5 1/2 pints.

Answer: Here ya go (answers below)

Step-by-step explanation:

5,400 becomes 5.4 x [tex]10^{3}[/tex]

0.0024 becomes 2.4 x [tex]10^{-3}[/tex]

342.5 becomes 3.425 x [tex]10^{2}[/tex]

0.000004 becomes 4 x [tex]10^{-6}[/tex]

463,000,000 becomes 4.63 x [tex]10^{8}[/tex]

12.5 x [tex]10^{3}[/tex] becomes 1.25 x [tex]10^{4}[/tex]

Answer:

n2=v2n1/v1

Or B

Step-by-step explanation:

P, R, and T are constant, then the volume is directly proportional to the mole. Then the correct option is A.

An ideal gas is a theoretical composed of a set of randomly moving gas particles that interacts only through elastic collision.

Given

A balloon containing 0.040 mol of a gas with a volume of 5.0 mL was expanded to 1.0 L.

[tex] \rm V_1 = 5 \ mL\\ V_2 = 1000 \ mL\\ n_1 = 0.040 \ mol [/tex]

We know the equation of the ideal gas.

[tex] \rm PV = nRT [/tex]

where P, R, and T are the constant, then

[tex] P \propto n[/tex]

Then we have

[tex] \rm \dfrac{V_2}{V_1} = \dfrac{n_2}{n_1} \\\\ V_2 = n_2 *\dfrac{V_1}{n_1} [/tex]

Thus, the correct option is A.

More about the ideal gas equation link is given below.

https://brainly.com/question/1056445

in the equation that u underlined u just take common in it

like

-x+xy

-x(1-y)

hope it helps you

have a great day bud. ;)

The product of the polynomial is x² - x + xy + 16y - 2y² - 30

Polynomial is an expression that involves only the operations of addition, subtraction, multiplication of variables.

Polynomials are classified based on degree as linear, quadratic, cubic and so on.

Given the polynomial:

(x + 2y - 6)(x - y + 5) = x² + 2xy - 6x - xy - 2y² + 6y + 5x + 10y - 30

= x² - x + xy + 16y - 2y² - 30  

The product of the polynomial is x² - x + xy + 16y - 2y² - 30

Find out more on Polynomial at: https://brainly.com/question/2833285

Answer:

42. A

43. C

Step-by-step explanation:

42. The answer is A. This is because we are distributing (multiplying) the 7.2 to each number in the parentheses.

43. If Hal ran 4.5 laps, then he ran...

0.65 mil (since each lap is 0.65 miles)* 4.5 (laps) = C. 2.925 miles.

Answer:

42. A, distributive property  tells us how to solve expressions in the form of a(b + c).

43. 0.65 miles x 4.5 laps = 2.925, C

Answer:

Hey, I'm not sure if this will help but by just looking at it I would say C.

Explanation:

This is because it looks like the parallelogram can be adjusted to be a rectangle which would give you the answer of 77.

I hope that makes sense!

Answer:

25%

17 is what percent of 68?

Its 25%

17/68*100

= (17*100)/68

= 1700/68 = 25

Answer:

25%

Step-by-step explanation:

Question : 17 is what percent of 68?​

Answer :

To solve this let the unknown percentage be x .

Let us solve now.

68 × x% = 17

68 × [tex]\frac{x}{100}[/tex] = 17

And now let us find the percentage by making x as the subject.

[tex]x=\frac{17*100}{68}[/tex]

[tex]x = \frac{1700}{68}[/tex]

[tex]x =25[/tex]

Therefore, the percentage is 25%

Hope this helps you :-)

Let me know if you have any other questions :-)

Answer:

[tex]d = \sqrt{(x2 - x1) + (y2 - y1)} \\ d = \sqrt{ (- 3 + 2) + (1 + - 4)} \\ d = \sqrt{ - 1 + - 3 } \\ d = \sqrt{ - 4 } \\ d = - 2[/tex]

Step-by-step explanation:

Answer:

4

Step-by-step explanation:

[tex]2^5 \times 2^{-3}[/tex]

Because the powers have the same base of 2, we can apply the index law:

[tex]a^b \times a^c=a^{b+c}[/tex]

Therefore, [tex]2^5 \times 2^{-3}=2^{5-3}=2^2=4[/tex]

Answer:

84x+56

Step-by-step explanation:

Hope this helps!

also for the future, so you don't have to waste your points, use math w ay it will solve ur problems :)

Well let's see how many equations we can make;

Main equation:-

[tex] \dashrightarrow \tt 15 + {?} = 36[/tex]

Delivered equations:

[tex] \dashrightarrow \tt 15 = 36 - {?}[/tex]

[tex] \dashrightarrow \tt { ?= 36 - 15}[/tex]

These are 3 equations

hope it helps

Answer:

15+?=36, ?+36=15, and ?=36-15

Step-by-step explanation: Hope it helps

Answer:

Step-by-step explanation:

BA = Number of hits / Times at bat

BA = 280 / 300

BA = 0.933

No one past or present, has ever had that kind of batting average.

Ty Cobb has a lifetime average of 0.366

Ted Williams was the last play to average 0.406 in a season. (Over 400). He did it in 1941.

Answer:

2

Step-by-step explanation:

trust me its is the answer

Answer:

283=97/u U=2.917

Step-by-step explanation:

if you have choices and more information, it would be helpful when answering questions

Answer:

  match the boxes to the parts of the equations shown below

Step-by-step explanation:

  [tex]\text{slope}=\dfrac{y_2-y_1}{x_2-x_1}=\dfrac{50-34}{5-3}=\dfrac{16}{2}=8[/tex]

__

  [tex]\text{slope}=\dfrac{y_2-y_1}{x_2-x_1}=\dfrac{2-31}{30-1}=\dfrac{-29}{29}=-1[/tex]

Answer:

D) [tex]f(x)=8x^5+7x^3-5x[/tex]

Step-by-step explanation:

A function is odd if its graph is symmetric to the origin, which we can check this if [tex]f(-x)=-f(x)[/tex] is true:

Option A

[tex]f(x)=7x^4+13x^3-11\\\\f(-x)=7(-x)^4+13(-x)^3-11\\\\f(-x)=7x^4-13x^3-11[/tex]

Since [tex]f(-x)\neq-f(x)[/tex], then the function does not have odd symmetry

Option B

[tex]f(x)=5x^7+4x^6+3x^5+x\\\\f(-x)=5(-x)^7+4(-x)^6+3(-x)^5+x\\\\f(-x)=-5x^7+4x^6-3x^5+x[/tex]

Since [tex]f(-x)\neq-f(x)[/tex], then the function does not have odd symmetry

Option C

[tex]f(x)=13x^5-\frac{1}{2}x^3+7x+3\\\\f(-x)=13(-x)^5-\frac{1}{2}(-x)^4+7(-x)+3\\ \\f(-x)=-13x^5-\frac{1}{2}x^4-7x+3[/tex]

Since [tex]f(-x)\neq-f(x)[/tex], then the function does not have odd symmetry

Option D

[tex]f(x)=8x^5+7x^3-5x\\\\f(-x)=8(-x)^5+7(-x)^3-5(-x)\\\\f(-x)=-8x^5-7x^3+5x[/tex]

Since [tex]f(-x)=-f(x)[/tex], then the function DOES have odd symmetry. You can also see that the function is odd because every term has an odd exponent.

Answer:

1.  y = 50x + 25

Step-by-step explanation:

See attached image.

The property of soils which depends on the size of particles is Texture.

The properties of Soil include colour, odor, temperature, and texture as measured by porosity, mouldability and a host of other texture effects.

Read more on properties of soil;

https://brainly.com/question/26462165

Answer:

the right one is texture

Step-by-step explanation:

i got it right on the test

Answer :

According to the Question

Diameter of a circle field is 40m and that of another 96m .

We have to find the diameter of the circle whose area is equal to the sum of the area of given two circular fields.

Radius of field whose diameter is 40 m

→ r = 40/2 = 20m

Radius of field whose diameter is 96 m

→ r' = 96/2 = 48m

Now, calculating the diameter of Larger circular field.

Let the radius of larger field be R m .

Now, according to the given statement

Sum of Area of given two circular fields = Area of larger field

➠ πr² + πr'² = πR²

➠ π ( r² + r'²) = π R²

➠ 20² + 48² = R²

➠ 400 + 2304 = R²

➠ 2704 = R²

➠ √2704 = R

➠ 52 = R

Therefore, Diameter = 2 × R = 2×52 = 104 m

So, the diameter of Larger circular field is 104 m .

Answer:

Area of circular field(2)=[tex]πr^2[/tex]

=[tex]π×(20)^2[/tex]

=[tex]400π[/tex]

Area of circular field(2)=[tex]πr^2[/tex]

=[tex]π×(48)^2[/tex]

=[tex]2304π[/tex]

Let the radius of circular field that is formed so be r meter(m).

Now,

[tex] \cancel\pi {r}^{2} = 2704 \cancel\pi[/tex]

[tex] {r}^{2} = 2704[/tex]

[tex]r = \sqrt{2704} [/tex]

[tex]r = 52 \: m[/tex]

Diameter=[tex]2r[/tex]

Diameter=[tex]2×52[/tex]

Diameter=[tex]104 m[/tex]

Step-by-step explanation:

[tex] \frak{ \blue{DisneyPrincess29}}[/tex]

Answer:

4,3

Step-by-step explanation: I took the test trust

Answer:

$6 + .50x = $2 + $1.00x

4 = .50x

8hr = x, the number of hours when both garages cost the same amount

$6 + .50 x 8 =

$10 would be the cost a both garages after 8 hours

Step-by-step explanation:

#A

Equation in slope intercept form

#B

Equation in slope intercept form

Now for compare take any no

Let's take 10

For garage A

For garage B

Hence Garage B is charging more

Answer:

15.57 square meters

Step-by-step explanation:

to figure out are you do L X W or length X width wich in this case is 4.325 X 3. 6