The soil for house plants consists of 12% water. If someone wants to plant flowers
that need 28% water in the soil, how many liters of water they need to add to 5 kg of
soil?

Answer:

A= wl = (6)5.6 = 33.6cm²

Answer:33.6

Step-by-step explanation:

A=wl=6·5.6≈33.6cm²

[tex]\\ \sf\longmapsto a_1=3(1)-9=3-9=-6[/tex]

And

[tex]\\ \sf\longmapsto a_5=3(5)-9=15-9=6[/tex]

Answer:

tan^2 60 - sin^2 45

= (√3)^2- (1/√2)^2

= 3-1/2

= 6-1/2

= 5/2

Answer:

[tex]\frac{5}{2}[/tex]

Step-by-step explanation:

The exact value of tan(60) is sqrt(3), and sin(45) is 1/sqrt(2)

tan^2 (60) - sin^2 (45)

[tex]=(\sqrt{3})^2-(\frac{1}{\sqrt{2}} )^2\\=3-\frac{1}{2}\\ = \frac{5}{2}[/tex]

Answer:

[tex]s = 19z - 7 - (5z - 9) - (8z + 3) \\ = 19z - 7 - 5z + 9 - 8z - 3 \\ = (19z - 5z - 8z) + (9 - 7 - 3) \\ \therefore \: third \: side \: s= 6z - 1[/tex]

P (Girl|Senior) = P(Girl n Senior) / P(Senior)

P(girl n senior) = 5 / 37

P(senior) = 7/37

P(girl | senior) = 5/7

Answer:

50 L of petrol is needed to travel 600 km.

Step-by-step explanation:

The car travels 1 km in 20/240 L of petrol.  

Then,  

Petrol needed to travel 600 km  

20/240 × 600  

20/24 × 60  

20/4 × 10  

5 × 10

= 50 L

Answer:

50 liters

Step-by-step explanation:

Petrol needed to travel 240 Km = 20 liters

Petrol needed to travel 1 Km = 20/240

Petrol needed to travel 600 Km = [tex]\frac{20}{240} * 600[/tex]

      = 50 liters

Answer:

205°

Step-by-step explanation:

The total circle is 360°. The right angle is 90°, and you know the other angle is 64°. 90° + 64° is 154°. 360° -154° is 205°.

Answer:

We know that the angle around any given point is 360°

Therefore, according to the given problem,

[tex]x° + 64° + 90° = 360° \\ x° + 154° = 360° \\ x° = 360° - 154° \\ \boxed{x° = 206°}[/tex]

Hence, the value of x° is 206°

Answer:

2 x 56 = 112

This is because 56 + 56 = 112

Hope this helps! :]

Answer:

Transposing a number is a type of error where two digits swap position in the sequence. An example would be to enter 13 instead of the desired 31. It could also be the error of dropping a needed zero as in writing 15 instead of the desired 150.

Step-by-step explanation:

Unless by "number" you mean musical score. Then transposing is rewriting the score in a new key.

To give the patient a dose of 2g medication with a strength of 4g/0.4ml, you should administer 50 ml of the medication.

Given that,

Dose ordered: 2g of medication

Medication strength: 4g/0.4ml

Conversion factor: 10

To calculate the volume of medication you need to give the patient,

Use a simple formula:

Volume (in ml) = (Dose ordered / Strength) x Conversion factor

In this case,

The dose ordered is 2g and the strength is 4g/0.4ml.

To find the conversion factor,

Divide 4g by 0.4ml, which equals 10.

So, using the formula,

The volume of medication you need to give the patient would be:

Volume (in ml) = (2g / 0.4ml) x 10

Now, calculating this:

Volume (in ml) = 5 x 10

Hence, you should give the patient 50ml of medication.

Learn more about the multiplication visit:

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#SPJ3

Answer:

0=0

1=8

2=10

^^^^

I don't know what the graph is asking if you want to graph the equation y=2x+6 the two points are (0,6) and (1,8)

9514 1404 393

Answer:

  (C)  Mr. Dixon saved about $500

Step-by-step explanation:

The prices can be rounded to hundreds to give ...

The sale price is about 20/25 = 4/5 of the regular price. It is about 2500-2000 = 500 dollars lower.

The true description is ...

  Mr. Dixon saved about $500

Answer:

Vertex: (-7/2, -27/2), opens upward

Step-by-step explanation:

I used Desmos to graph this function, as you can see in the attached photo. The vertex was (-3.5, -13.5) and the parabola opened upward.

Answer:

-3/2

Step-by-step explanation:

Slope: (y₂ - y₁) / (x₂ - x₁)

Plug the given points into this formula:

(-4 - 5) / (8 - 2) =

(-9) / (6)

-3/2

Answer:

7/16

Step-by-step explanation:

change 3/8 to have a common denominator with 1/16 then add the numerators. 6/16 + 1/16 which is 7/16.

[tex]\\ \sf\longmapsto \sqrt{(x^2-2x-2)}+\sqrt{2x-3}=5[/tex]

We know

if x=√a+√b then

[tex]\\ \sf\longmapsto x^2-2x-2+2x-3+2\sqrt{(x^2-2x-2)(2x-3)}=5^2[/tex]

[tex]\\ \sf\longmapsto x^2-3+2\sqrt{2x^3-4x^2-4x-3x^2+6x+6}=25[/tex]

[tex]\\ \sf\longmapsto 2\sqrt{2x^3-7x^2+2x+6}=25-x^2+3=28-x^2[/tex]

[tex]\\ \sf\longmapsto \sqrt{2x^3-7x^2+2x+6}=\dfrac{28-x^2}{2}[/tex]

[tex]\\ \sf\longmapsto 2x^3-7x^2+2x+6=\dfrac{(28-x^2)^2}{4}[/tex]

[tex]\\ \sf\longmapsto 2x^3-7x^2+2x+6=\dfrac{784-56x^2+x^4}{4}[/tex]

[tex]\\ \sf\longmapsto 8x^3-28x^2+8x+24=784-56x^2+x^4[/tex]

[tex]\\ \sf\longmapsto x^4-8x^3-28x^2-8x+760=0[/tex]

The equation has no real solutions .(attached a pic of calculator )

Answer:

[tex]{ \rm{ \sqrt{( {x}^{2} - 2x - 2) } + \sqrt{(2x - 3)} = 5 }}[/tex]

• let's first collect like terms

[tex]{ \rm{ \sqrt{( {x}^{2} - 2x - 2)} = 5 - \sqrt{(2x - 3)} }}[/tex]

• Then, let's take a square:

[tex]{ \rm{ {( \sqrt{( {x}^{2} - 2x - 2)}) }^{2} = {(5 - \sqrt{(2x - 3)} )}^{2} }} \\ \\ { \rm{ {x}^{2} - 2x - 2 = (5 - {(2x - 3)}^{ \frac{1}{2} } )(5 - {(2x - 3)}^{ \frac{1}{2} }) }} \\ \\ { \rm{ {x}^{2} - 2x - 2 = 25 - 10 \sqrt{2x - 3} - 2x - 3 }} \\ \\ { \rm{ {x}^{2} - 2x + 2x - 2 - 22 + 10 \sqrt{2x - 3} = 0}} \\ \\ { \rm{ {x}^{2} + 10 \sqrt{2x - 3} - 22 = 0}} \\ \\ { \rm{the \: roots \: of \: the \: equation \: are \: not \: real}}[/tex]

Answer: x = 3(-1 + i) or 3(-1 - i)

Answer:

A. -2.5

hope that helped <3

Answer:

opposite

Step-by-step explanation:

it's negative

Answer:

[tex]f(7 {x}^{2} - 2x + 9) \\ = - 5(7 {x}^{2} - 2x + 9) - 7 \\ = - 35 {x}^{2} + 10x - 45 - 7 \\ = - 35 {x}^{2} + 10x - 38 \\ f.g( - 3) = - 35 {( - 3)}^{2} + 10( - 3) - 38 \\ f.g( - 3) = -383[/tex]

7- The commission for the sale of a $ 540,000 house was $ 12,020.

8- The commission for the sale of a $ 795,600 house was $ 17,132.

9- The commission during the 4 weeks of February was $ 24,690.

10- The commission during the 4 weeks was $ 27,754.

11- The house was worth $ 440,000.

Given that a real estate office pays its salespeople a weekly retainer of $ 220 plus commission of 2.5% for the first $ 200,000 of the value of each property sold and 2% of each amount after that, to determine the commission received if the following houses are sold, the following calculations must be performed:

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Answer:

No

Step-by-step explanation:

The change in the sequence is not consistent therefore it cannot be an arithmetic sequence.

Answer:

30d

Step-by-step explanation:

Answer:

Approx 41.7%

Step-by-step explanation:

150/360=0.41.666666667

0.417*100=41.7%

Answer:

x-120=899

Step-by-step explanation:

(x=1019)

Answer:

10

Step-by-step explanation:

Since we are dealing with area, we need to multiply 16 1/4 by 11 3/4.

If we do that, we get 190 15/16

So, if we divide 190 15/16 by 20:

[tex]190 \frac{15}{16} / 20 = 9.5[/tex]

You cannot have half a bag however. You will need to round the number to 10.

Answer:

the answer is of mid piont (4&6)

Answer:

The answer would be 6^2 = 36 , 8^2 = 64, 15^2 = 225

Step-by-step explanation:

Answer on Edmentum!

Step-by-step explanation:

The given equations are

x2+y3=xy9

⟹xy2y+3x=xy9

⟹3x+2y=9 ........(i) 

x4+y9=xy21

⟹xy4y+9x=xy21

⟹9x+4y=21   ........(ii)  

Now (i)×3⟶9x+6y=27   .....(iii)

Subtracting (iii) from (ii),

−2y=−6⇒y=3.

Putting y=3 in (i),

3x+2×3=9⟹x=1.∴(x,y)=(1,3)

Answer:

i

Step-by-step explanation: