help please (it has to be 20 more characters ignore)

Answer:

a = 2 [tex]\frac{1}{3}[/tex]

Step-by-step explanation:

Given

[tex]\frac{1}{3}[/tex] a = [tex]\frac{7}{9}[/tex]

Multiply both sides by 9 ( the LCM of 3 and 9 ) to clear the fractions

3a = 7 ( divide both sides by 3 )

a = [tex]\frac{7}{3}[/tex] = 2 [tex]\frac{1}{3}[/tex]

It should be 2 1/3......

Answer:

C. 50°F

Step-by-step explanation:

(10°C × 9/5) + 32 = 50°F

Answer:

The answer is [15(√x - 1) + 5].

Step-by-step explanation:

(fog)(5) = [3(√x-1) + 1] (5)

= [3(√x - 1) +1] (5)

= 15(√x - 1) + 5

Answer:

10.31

Step-by-step explanation:

If 0.776 = 8/x and we want to solve for x, invert both sides of the equation to obtain

x/8 = 1/0.776, which becomes

x = 8/0.776 = 10.31 (to the nearest hundredth)

Answer:

The total is $38.1

Step-by-step explanation:

The tax is $2.1, The tip is $6.

Percentage is the part of the whole expressed in the fraction of hundred.

The total cost of the meal after the tip and tax is $38.1.

Percentage of a number or ratio expressed in the form of fraction of hundred.

Given information-

The total cost of meal before tax and tip is $30.

The total sales tax is 7%.

The tip added to the cost of meal is 20%.

As, the total sales tax is 7% and cost of the meal is $30. Thus the total sales tax amount is,

[tex]s_t=30\times\dfrac{7}{100} \\s_t=2.1[/tex]

Thus the amount of sales tax is 2.1.

As the the tip added to the cost of meal is 20% and the cost of the meal is 32.1 after the tax. Thus the amount of meal after the 20 % tip is,

[tex]s_t=30\times\dfrac{20}{100} \\s_t=6.00[/tex]

The amount of the tip of the meal after the tax is $6.00.

The cost of meal after the tip and tax is,

[tex]C=30+2.1+6\\C=38.1[/tex]

Hence the total cost of the meal after the tip and tax is $38.1.

Learn more about the percentage of a number here;

https://brainly.com/question/19247356

Answer:

The size of angle y is 126°

Step-by-step explanation:

From the diagram of the regular polygons, we have;

One side of each pentagon lies along a side of the octagon

The interior angle of the octagon > The interior angle of the pentagon

Each interior angle of a regular pentagon = 108°

Each interior angle of a regular octagon = 135°

Therefore, ∠ABC = 135° - 108° = 27°

Similarly, ∠BAC = 135° - 108° = 27°

Therefore, by triangle the angle sum theorem, we have;

∠y = ∠ACB = 180° - ∠BAC - ∠ABC = 180° - 27° - 27° = 126°

The size of angle y, ∠y = 126°.

Answer and Step-by-step explanation:

Ok, so all we have to do is input the values into the equation.

We are told Adam bought 2 mechanical pencils and 8 spiral notebooks, which cost $13

and that

Kia bought 3 mechanical pencils and 5 spiral notebooks, which cost $12.50.

Adam: 2p + 8n = 13

Kia:     3p + 5n = 12.5

This is the answer.

#teamtrees #WAP (Water And Plant)

Answer: Adam: 2p + 8n = 13

Kia:     3p + 5n = 12.5

Step-by-step explanation:

Answer:

y(total)=2x+5

Step-by-step explanation:

Answer:

2x+5=25 I think.......

Answer:

12kr⁷ is the equivalent expression.

Step-by-step explanation:

We need to find an expression that is equivalent to [tex](144k^2r^{14})^{1/2}[/tex]

We know that, 12² = 144

[tex](144k^2r^{14})^{1/2}=(12^2\times k^2\times r^{14})^{1/2}\\\\=12^{2\times \dfrac{1}{2}}\times k^{2\times \dfrac{1}{2}}\times r^{14\times \dfrac{1}{2}}\\\\=12\times k\times r^7\\\\=12kr^7[/tex]

So, the equivalent expression is [tex]12kr^7[/tex]. Hence, the correct option is (B).

Answer:

15000

Step-by-step explanation:

you times it by 100000

Answer:

The correct answer is: Option D: [tex]t = 5s + \frac{s}{2}[/tex]

Step-by-step explanation:

Given that

Weight of snail is s

We have to use the given statements to write the mathematical expression

The snail drank water 5 times of its weight

So the quantity of water will be 5s

And it ate half of its weight's food which will be s/2

The combined weight of water and food will be:

[tex]t = 5s + \frac{s}{2}[/tex]

Hence,

The correct answer is: Option D: [tex]t = 5s + \frac{s}{2}[/tex]

Answer:

Length of right-angle  triangle 'a' = 4

b)

[tex]sin(A) = \frac{opposite side}{Hypotenuse} = \frac{a}{c} = \frac{4}{5}[/tex]

[tex]cos(A) = \frac{Adjacent side}{Hypotenuse} = \frac{b}{c} = \frac{3}{5}[/tex]

[tex]tan(A) = \frac{opposite side}{Adjacent side} = \frac{a}{b} = \frac{4}{3}[/tex]

Step-by-step explanation:

Step(i):-

Given  b = 3 and hypotenuse c = 5

Given ΔABC  is a right angle triangle

By using pythagoras theorem

        c² = a² + b²

  ⇒ a² = c² - b²

 ⇒  a² = 5²-3²

          =25 - 9

      a² = 16

⇒   a = √16 = 4

The sides of right angle triangle  a = 4 ,b = 3 and c = 5

Step(ii):-

[tex]sin(A) = \frac{opposite side}{Hypotenuse} = \frac{a}{c} = \frac{4}{5}[/tex]

[tex]cos(A) = \frac{Adjacent side}{Hypotenuse} = \frac{b}{c} = \frac{3}{5}[/tex]

[tex]tan(A) = \frac{opposite side}{Adjacent side} = \frac{a}{b} = \frac{4}{3}[/tex]

Answer:

The nearest degree of the angle between the 8cm and 9cm sides is:

Step-by-step explanation:

To obtain the correct angle in a small triangle like the triangle formed with the measures in the exercise is a little bit hard, in a change of this, I used a triangle calculator, with this I obtained the right angle formed by the sides with 8 cm and 9 cm, which I'm gonna add like an attachment.

From this image, you can guide yourself to draw the triangle without mistakes and to identify the right angle, which is 40,8° but the compass is not so defined, by this reason you can take it like 41° or 40°.

Answer:

I think is A

Step-by-step explanation:

I hope it help

Answer:

The coordinates of the midpoint are (-2,-1)

Step-by-step explanation:

The Midpoint of a Segment

Given a segment defined by points (x1,y1) and (x2,y2), the coordinates of the midpoint (xm,ym) are calculated as follows:

[tex]\displaystyle x_m=\frac{x_1+x_2}{2}[/tex]

[tex]\displaystyle y_m=\frac{y_1+y_2}{2}[/tex]

We have the endpoints (0,4) and (-4,-6):

[tex]\displaystyle x_m=\frac{0-4}{2}[/tex]

[tex]\displaystyle x_m=\frac{-4}{2}=-2[/tex]

[tex]\displaystyle y_m=\frac{4-6}{2}[/tex]

[tex]\displaystyle y_m=\frac{-2}{2}=-1[/tex]

The coordinates of the midpoint are (-2,-1)

Answer:

[tex]\sqrt{13}[/tex]

Step-by-step explanation:

The distance formula that gives the distance between two points is given as:

[tex]d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]

Plugging in our given points, we get:

[tex]d=\sqrt{(5-2)^2+(7-5)^2},\\d=\sqrt{3^2+2^2},\\d=\sqrt{9+4},\\d=\fbox{$\sqrt{13}$}[/tex].

Answer: 16 km

Step-by-step explanation:

1 h 20= 80 min

En 60 min il fait 12 km

En 80 min il fait 16 km

Answer:

1/12

Step-by-step explanation:

When you are doing probability with multiple things at once you have to multiply the probabilities of each asked number from each object together to get the probability of them both landing on those numbers

Answer:

slope is 1/3

Step-by-step explanation:

notice the points on the line, from the first point go one square up and three to the right, thats how i got 1/3    

Answer:

2[tex]\sqrt{6}[/tex]

Step-by-step explanation:

Using the rule of radicals

[tex]\sqrt{a}[/tex] × [tex]\sqrt{b}[/tex] ⇔ [tex]\sqrt{ab}[/tex]

Simplifying the radicals

[tex]\sqrt{96}[/tex]

= [tex]\sqrt{16(6)}[/tex]

= [tex]\sqrt{16}[/tex] × [tex]\sqrt{6}[/tex] = 4[tex]\sqrt{6}[/tex]

[tex]\sqrt{24}[/tex]

= [tex]\sqrt{4(6)}[/tex]

= [tex]\sqrt{4}[/tex] × [tex]\sqrt{6}[/tex] = 2[tex]\sqrt{6}[/tex]

Thus

[tex]\sqrt{96}[/tex] + 2[tex]\sqrt{6}[/tex] - 2[tex]\sqrt{24}[/tex]

= 4[tex]\sqrt{6}[/tex] + 2[tex]\sqrt{6}[/tex] - 4[tex]\sqrt{6}[/tex] ← collect like terms

= 2[tex]\sqrt{6}[/tex]

Answer:

Step-by-step explanation:

first thing

in your question about 70% is done so need to simplify it a little

[tex] \sqrt{96} + 2 \sqrt{6} - 2\sqrt{24} [/tex]

[tex] \sqrt{ {4}^{2} \times 6 } + 2\sqrt{6} - 2 \sqrt{2 ^{2} \times 6 } [/tex]

[tex]4 \sqrt{6} + 2 \sqrt{6} - 4 \sqrt{6} [/tex]

Answer:

probably 8 lol

Step-by-step explanation:

i just did 600/75 sorry if it's wrong

Answer:

pretty sure it's A. (4, -4)

Answer: Assuming the ancestors are distinct (very unlikely), each generation is double the size of the following generation. So

15

generations back will be

2

15

=

32768

ancestors.

Answer: B. 2/6

* Hopefully this helps:) Mark me the brainliest!!

Answer:

no

Step-by-step explanation:

Answer:

40 percent

Step-by-step explanation:

Answer:

is the last one

1 - 2n > 5. The solution set is (-∞, -2)

Step-by-step explanation:

e are dealing here with two problems:

First, to determine which mathematical statement represents "One less than twice a number is no less than five".

Second, solve n, that is, the solution set for the numbers that solve the inequality.

First Part: Identifying the inequality

"One less than twice a number" can be written as  , where n is the unknown number.

If it is not less than five, thus it is greater (no less) than five. Then, the symbol here is  " > " (greater).

As a result: "One less than twice a number is no less than five" could be rewritten as "One less than twice a number is greater than five", or:

.

Second Part: Finding the solution set

The solution set for this inequality is as follows:

⇒

Subtract -1 from each member of the inequality:

⇒  ⇒  

Multiply each member of the inequality by  (or divide each member by -2). We have to remember here that when we multiply or divide an inequality by a negative number (-n), this inverts the inequality, that is:

The solution set is then , which is any value less than -2 (not including -2, because is < and not ≤), and we have infinite negative numbers with such a characteristic. We can write it mathematically as an interval notation:

Solution set for  is .

Answer:

1-2n>5

hope it help3d

Answer:

They are equivalent

Step-by-step explanation:

n would equal the same, and 10 and 5+5 equal the same. Therefore, whatever n is, they will be equal no matter what. Unless you subtract the n from one side and add on the other.

Answer:

Step-by-step explanation:

yesh