What is 19.51 ÷ 2? And also explain how you found the answer please. Thank YOU!

An equation is formed of two equal expressions. The number is 4/3.

An equation is formed when two equal expressions are equated together with the help of an equal sign '='.

Let the unknown number be represented by x.

The given phrase can be written in the form of an expression "The sum of 1/2 and four times a number is equal to 5/6 subtracted from five times the number" as,

Now, we can write the equation by equating the expressions together and then solving it for x,

(1/2) + 4x = 5x - (5/6)

(1/2) + (5/6) = 5x - 4x

x = (1/2) + (5/6)

x = (3/6) + (5/6)

x = 8/6

x = 4/3

Hence, the number is 4/3.

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Answer:

127

Step-by-step explanation:

We can use the Exterior Angle of a Triangle theorem to find x. It states that the exterior angle of a triangle is equal to the sum of the two opposite interior angles.

We will start with x+5. It is equal to 79 +____ an angle we don't know yet. But we do know that the angle____ and x equals 180 because they form a straight line. Therefore the unknown angle must be 180-x.

So we will set x+5=79+180-x. We will combine like terms, use inverse operations, and isolate.

x+5=79+180-x

x+5=259-x

x+x+5=259-x+x

2x+5=259

2x+5-5=259-5

2x=254

x=127

Answer:

127

Step-by-Step Explanation:

I already did this on edginuety :)

Answer:

Garden Trees Number

Redbud 2

Magnolia 3

Snowbell 1

Maple 4

Step-by-step explanation:

If the first mark is labeled Redbud and has 2 dots then it has 2 trees.

If the second mark is labeled Mangolia and has 3 dots then it has 3 trees.

If the third mark is labeled Snowbell and has 1 dot then it has 1 tree.

If the fourth mark is labeled Maple and has 4 dots then it has 4 trees.

Answer:

D

Step-by-step explanation:

Answer:

Natasha charges $30 per house

Step-by-step explanation:

Profit =  -126 + 30x

The cost of the cleaning supplies is 126

and the cost per house is 30

x = the number of houses cleaned.

Answer:

[tex]6^{\frac{1}{5} }=\sqrt[5]{6}[/tex]

[tex]6^{\frac{7}{5} }=\sqrt[5]{6^7}[/tex]

[tex]6^{\frac{1}{6} }=\sqrt[6]{6}[/tex]

[tex]7^{\frac{1}{2} }=\sqrt[2]{7}[/tex]

[tex]7^{\frac{5}{2} }=\sqrt[2]{7^5}[/tex]

[tex]6^{\frac{9}{2} }=\sqrt[2]{6^9}[/tex]

Step-by-step explanation:

A radical is the root operation for n roots such as square root or cuberoot in the form [tex]\sqrt[n]{x}[/tex]. A fraction exponent [tex]x^{m/n}[/tex] can be converted to the radical form.

[tex]6^{\frac{1}{5} }=\sqrt[5]{6}[/tex]

[tex]6^{\frac{7}{5} }=\sqrt[5]{6^7}[/tex]

[tex]6^{\frac{1}{6} }=\sqrt[6]{6}[/tex]

[tex]7^{\frac{1}{2} }=\sqrt[2]{7}[/tex]

[tex]7^{\frac{5}{2} }=\sqrt[2]{7^5}[/tex]

[tex]6^{\frac{9}{2} }=\sqrt[2]{6^9}[/tex]

The lengths of the sides of triangle DEF are DE = 0.75 cm, EF = 1.125 cm, and DF = 1.5 cm.

Triangles ABC and DEF are similar, which means their corresponding angles are equal. In similar triangles, the ratio of the lengths of corresponding sides is constant. To find the lengths of the sides of DEF, we can use the ratio of the corresponding sides of ABC and DEF.

Let x be the length of DE in triangle DEF. Since DE corresponds to AB, we have the ratio x/2 = 1.5/4, which simplifies to x = 0.75 cm. Similarly, for EF corresponding to BC, y/3 = 1.5/4, giving y = 1.125 cm. Finally, for DF corresponding to CA, z/4 = 1.5/4, yielding z = 1.5 cm.

Therefore, the lengths of the sides of triangle DEF are DE = 0.75 cm, EF = 1.125 cm, and DF = 1.5 cm. This result is consistent with the idea that in similar triangles, the ratio of corresponding sides remains constant.

The calculation involved setting up and solving simple proportions based on the given lengths of the sides of triangle ABC and using them to find the lengths of the sides of triangle DEF.

Answer:

8

Step-by-step explanation:

160 divided by 20 hours = 8.

David has a 8 hourly wage.

Your answer would be $8. 20hrs divided into $160=$8

Hope this helps....

Answer:

3rd one for lesson: Translations of the Square Root Function

Step-by-step explanation:

It should be a parabola that opens upward and is shifted 2 units downward.

The graph of the quadratic function y = x² - 2 typically looks like.

The graph of the quadratic function y = x² - 2 is a parabola. Specifically, it's a upward-opening parabola because the coefficient of the x² term (which is 1) is positive.

- The vertex of the parabola is at the point (0, -2).

- The parabola opens upward, so it does not intersect or cross the x-axis.

- It reaches its minimum value at the vertex, which is -2.

The graph that represents an upward-opening parabola with a vertex at (0, -2) and does not intersect the x-axis. It should be a parabola that opens upward and is shifted 2 units downward.

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Answer:

3 adults and 24 students

Step-by-step explanation:

We can set-up a system of equations to find the number of adults. We know students and adults attended. We will let s be the number of students and a be the number of adults. Since 27 tickets were purchased, then s+a=27.

We also know they were purchased for $60 and adult tickets cost $4 and student tickets cost $2. We can write 2s+4a=60.

We will solve by substituting one equation into the other. We start by solving the first equation for c. s+a=27 becomes s=27-a.

Now we substitute s=27-a into 2s+4a=60. Simplify and isolate the variable a.

2s+4a=60

2(27-a)+4a=60

54-2a+4a=60

54+2a=60

54-54+2a=60-54

2a=6

a=3

This means that 3 adults attended and 24 students attended since 3+24=27.

The Apex Savings Bank was required to keep a reserve of 4.5% of the deposit. The bank was free to loan out the remaining 95.5% which equaled $12,128.50.

The reserve rate is the percentage of the deposit that the bank must keep, in this case, Apex Savings Bank. To calculate the reserve rate, we divide the reserve by the deposit and multiply by 100%. Therefore, ($571.50 / $12,700) * 100% = 4.5%. This means the bank had a reserve rate of 4.5% at that time.

Moving on towards the second question about how much Apex Savings Bank was free to loan out. Since the bank must keep 4.5% of the deposit, it is free to loan out the rest, which is 100% - 4.5% = 95.5%. By applying this percentage to the deposit, we see that Apex Savings Bank was free to loan out 95.5% of $12,700, or $12,128.50.

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Answer:

a

Step-by-step explanation:

Answer: D

Step-by-step explanation:

Inverse is when you swap the x's and y's and solve for "y":

y = 6x + 1

swap: x = 6y + 1

solve: x - 1 = 6y

      [tex]\dfrac{1}{6}(x-1)=y[/tex]

Answer:

48, 11, and 90 from top to bottom

Step-by-step explanation:

Hi! You again!

so for every adult, there are 6 children

8+8+8+8+8, or 8x6, is 48

15+15+15+15+15+15, or 15x6 is 90

and the middle is where it's a bit tricky, since we have to divide instead of multiply.

we're trying to find out what times 6 is 66.

11+11+11+11+11+11 is 66.

Answer:

8-48

11-66

15-90

Step-by-step explanation:

make a table start from 1 and work your way down.

Answer:

The total cost of one hot dog, one slice of pizza and one ice cream cone at the county fair is $3.

Step-by-step explanation:

Let us assume that the cost of the one hot dogs be x.

Let us assume that the cost of the one ice cream cone be y.

Let us assume that the cost of the one silce of pizza be z.

As given

At the county fair, two hot dogs and an ice cream cone cost $2.50.

Than the equation becomes

2x + y = 2.50

Two slices of pizza and an ice cream cone cost $3.50.

2z + y = 3.50

Than two equations are

2x + y = 2.50 and 2z + y = 3.50

Adding the both above equation.

2x + y +  2z + y = 2.50 + 3.50

2x + 2z + 2y = 6

[tex]x + y + z = \frac{6}{2}[/tex]

x + y + z = 3

Therefore the total cost of one hot dog, one slice of pizza and one ice cream cone at the county fair is $3.

graph A

no x-intercept

no y-intercept

H.A is y = 5

V. A. is x = 0

*****************************************

Answer: [tex]\frac{150}{31}[/tex]

Step by step explanation:

log₆(5x + 6) - log₆(x - 4) = 2

log₆[tex](\frac{5x+6}{x-4})[/tex] = 2

[tex](\frac{5x+6}{x-4})[/tex] = 6²

[tex](\frac{5x+6}{x-4})[/tex] = 36

5x + 6 = 36(x - 4)

5x + 6 = 36x - 144

       6 = 31x - 144

    150 = 31x

     [tex]\frac{150}{31}[/tex] = x

**********************************************************

Answers:

Explanation:

f(x) = 3x² + 6x - 2

      a=3  b=6 c=-2

x = [tex]\frac{-b}{2a} =\frac{-6}{2(3)} = \frac{-6}{6} = -1[/tex]

Axis Of Symmetry: x = -1

f(-1) = 3(-1)² + 6(-1) - 2

       = 3 - 6 - 2

       = -5

Vertex: (-1, -5)

x = [tex]\frac{-b+/-\sqrt{b^{2}-4ac}}{2a}[/tex]

  = [tex]\frac{-6+/-\sqrt{6^{2}-4(3)(-2)}}{2(3)}[/tex]

  = [tex]\frac{-6+/-\sqrt{36+24}}{6}[/tex]

  = [tex]\frac{-6+/-\sqrt{60}}{6}[/tex]

  = [tex]\frac{-6+/-2\sqrt{15}}{6}[/tex]

  = [tex]\frac{-2+/-\sqrt{15}}{3}[/tex]

x-intercepts: [tex]\frac{-2+/-\sqrt{15}}{3}[/tex]

Answer:

[tex]f(x)=\sqrt[n]{5x}-10[/tex]

Step-by-step explanation:

Parent root function is given by:

[tex]f(x)=\sqrt[n]{x}[/tex]

According to rules,

Combining these 2 transformation gives us the function:

[tex]f(x)=\sqrt[n]{5x} -10[/tex]

Answer choice A is right.

Answer:

A. f(x)= n√5x-10

Answer:

Value of D=73

D is positive that means  the roots are real and distinct.

Step-by-step explanation:

We have been given a quadratic equation:

[tex]2x^2-3x+8[/tex]

We have to find its dicsriminant which is [tex]D=b^2-4ac[/tex]

Here, a=-2 , b=-3 and c=8 on comparing with the general equation [tex]ax^2+bx+c=0[/tex]

On substituting the values in the formula of discriminant we get:

[tex]D=(-3)^2-4(-2)(8)[/tex]

[tex]\Rightarrow D=9+64=73[/tex]

Value of D=73

If D is positive that means  the roots are real and distinct.

Answer: 33 and 28

Step-by-step explanation:

so, all we know is ? + ? = 61

if the larger number is 5 more than the smaller number, we can assume that..

33 + 28 = 61

The mean distance ran by all four of them is 30.

Given is that sum of two numbers is 61 . The larger number is 5 more than the smaller number.

We can write the equations as -

x + y = 61                                               .... Eq{ 1 }

y = x + 5                                                  .... Eq{ 2 }

Now, we can write -

x + y = 61

x + x + 5 = 61

2x = 56

x = 28

and

y = 33

Therefore, the mean distance ran by all four of them is 30.

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Answer:

[tex]m=\frac{-10}{4}[/tex], [tex]\frac{-5}{4}=m+\frac{-15}{4}[/tex] and [tex]m+2=-0.5[/tex]

Step-by-step explanation:

We solve for m in the equation to find the value.

[tex]\frac{3}{4}+m=\frac{-7}{4}  \\\frac{3}{4}-\frac{3}{4}+m=\frac{-7}{4}-\frac{3}{4}\\m=\frac{-10}{4}[/tex]

We now look for expressions which are [tex]m=\frac{-10}{4}=-2.5[/tex] or whose expressions solve to the same.

The following are equivalent [tex]m=\frac{-10}{4}[/tex], [tex]\frac{-5}{4}=m+\frac{-15}{4}[/tex] and [tex]m+2=-0.5[/tex].

Answer:

$60

Step-by-step explanation:

$120/2(half) = $60

Answer: The amount given by his grandfather to him = $60.

Step-by-step explanation:

Given : Andrei's grandfather offered to give him a gift at 50% of the amount of money he saved in one year.

The amount saved by Andrei = $ 120

Then, the amount given by his grandfather to him will be

50% of ( amount saved by Andrei )

= (0.50) x ($120) [When we convert a percent into decimal we divide it by 100]

= $60

Therefore , the amount given by his grandfather to him = $60.

Answer:

x-intercept = 3 ; y-intercept = -5

Step-by-step explanation:

Lets rearrange the equation into the form y = mx + b:

5x - 3y = 15

-3y = 15 - 5x

Divide by -3:

y = 5x/3 - 5

Here we know that b (-5) is the y-intercept, and we can find the x-intercept by starting at the y-intercept and using the slope till we get the x-intercept. Or you can set y = 0 and solve for x, either way you get x-intercept = 3.

This equation is in standard form, if you put it into slope-intercept form, you will be able to graph it. Once you graph it you will be able to find the intercepts.

5x - 3y = 15

-3y = -5x + 15

y = 5/3x - 5

X-Intercept: (3,0)

Y-Intercept: (0, -5)

Answer:

The base is greater than 1, making it an exponential growth function.

Step-by-step explanation:

The student's mistake is that an exponential decay function can only have the base as less than 1, but because 1/0.5 = 2, it's an exponential growth function.

Answer:

Step-by-step explanation:

f(x)=(1/0.5)^x

Lets simplify what is in the parentheses

1 / .5 = 2

f(x)=(2)^x

Since 2 > 1

 This function grows

Answer: ∠ A = ∠B= 48° and ∠ C = 84°

Step-by-step explanation:

Here, m∠ADE: m∠ADB = 2:9

Let m∠ADE = 2x and m∠ADB = 9x

Where x is any value.

By joining the points D and E (construction)

Since, Here DE ║ AB.

⇒ ∠DAB = 2 x

⇒ ∠ A = 4x ( because AD is the angle bisector so, ∠DAB=∠DAE = 2x )

Now,  Let O is the intersection point of angle bisectors AD and BE.

Then, By the property of angle bisctor.

O is the circumcenter of the triangle ABC.

Therefore, OA = OB

⇒ ∠DAB = ∠EBA = 2 x

But BE is the angle bisceor,

Therefore, ∠EBA = ∠EBC=2 x

But, ∠B = ∠EBA + ∠EBC

⇒ ∠B = 4x

Now, since BD is the same transversal on the parallel lines AB and ED,

⇒ ∠B = ∠ EDC

⇒ ∠ EDC = 4x

Since, ∠ADB + ∠ADE + ∠EDC = 180°

⇒ 9x + 2x + 4x = 180°

⇒ 15x = 180°

⇒ x = 12°

Thus, the measures of the angles of ΔABC are,

∠ A = 4x =4×12 = 48°

∠ B = 4x =4×12= 48°

⇒ ∠ C = 180° - 48°- 48°= 84°

The question is about finding the angles of a triangle given certain conditions. We use the Angle Bisector Theorem and other geometric principles related to angle bisectors. We set up an equation based on these principles and solve for the angles.

The given scenario is about triangle ABC, with AD and BE acting as angle bisectors of ∠A and ∠B respectively. Also, provided is the ratio of m∠ADE to m∠ADB, which is 2/9. Given these conditions, we are to find the measures of the angles of ΔABC.

First, we can make use of the Angle Bisector Theorem, which states that an angle bisector of an angle of a triangle divides the opposite side in a ratio equal to the ratio of the other two sides. From this theorem, we see that m∠ADE / m∠ADB = AD / DB.

We know from the given that m∠ADE/m∠ADB = 2/9.

Since DE is parallel to AB, angle ∠ADE is equal to angle ∠BAC and angle ∠ADB is equal to angle ∠ABC by the corresponding angles postulate.

As ∠ADE and ∠ADB are part of a straight angle ∠ADA, then ∠ABC + ∠BAC = 180° - ∠ADB. We can use these relationships to create an equation, solve for the angles, and find the measures of the angles of ΔABC.

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Answer:

324 minutes or 5 hours 24 minutes

Step-by-step explanation:

On Tuesday, Saima rode her bike for 52 miles. If it takes Saima 6 minutes to ride each mile, then it takes her

[tex]52\cdot 6=312[/tex]

minutes to ride all 52 miles.

Before she rides her bike, Saima warms up for 12 minutes.

Therefore, it takes Saima

[tex]12+312=324[/tex]

minutes to warm up and ride her bike on Tuesday.

Step-by-step explanation:

On Tuesday, Saima rode her bike for 52 miles. If it takes Saima 6 minutes to ride each mile, then it takes her

minutes to ride all 52 miles.

Before she rides her bike, Saima warms up for 12 minutes.

Therefore, it takes Saima

minutes to warm up and ride her bike on Tuesday.

Final answer:

To find the original price of a pizza before a 20% discount that resulted in a final price of £5.60, divide the final price by 0.8. The original price is calculated to be £7.00.

Explanation:

The question involves determining the original price of a pizza before a 20% discount was applied, given that the reduced price after the discount is £5.60.

To calculate the original price, we can use the formula for finding the original price when the final price and discount rate are known.

Let's denote the original price as OP. Since a 20% discount was applied, the pizza sold for 80% of its original price. The equation representing this situation is:

0.8 × OP = £5.60

Now, we divide the reduced price by 0.8 to find the original price:

OP = £5.60 / 0.8

OP = £7.00

Thus, the original price of the pizza was £7.00 before the 20% discount was applied.

Answer:

angle of elevation to the sun is 15.52°

Step-by-step explanation:

basketball goal 10 ft high casts a shadow 36 ft long

This forms a right angle triangle. the diagram is attached below

We need to find out angle A

We know opposite side = 10ft and adjacent side = 36 ft

We use tan formula

[tex]tan(A) = \frac{opposite}{adjacent}[/tex]

[tex]tan(A) = \frac{10}{36}[/tex]

To find A we move tan to the other side, it becomes tan^-1

[tex]A =tan^{-1}(\frac{10}{36})[/tex]

A = 15.52

So angle of elevation to the sun is 15.52°

Answer:

Height is 18 inches.

Base is 36 inches.

Step-by-step explanation:

Let the base of the triangular table top be x inches.

The height will be [tex]\frac{1}{2}[/tex]x inches.

The area of the triangular table top is 324 inches²

Area of a triangle = [tex]\frac{1}{2}[/tex] × Base × Height

342 inches² = [tex]\frac{1}{2}[/tex] × x × [tex]\frac{1}{2}[/tex]x

[tex]\frac{x^2}{4}[/tex] = 324

Finding the square root on both sides gives;

[tex]\frac{x}{2}[/tex] = 18

Therefore x (the base) = 36 inches

And [tex]\frac{1}{2}[/tex] (the height) = 18 inches.

Final answer:

The height of the triangular table top is 18 inches, and the base is 36 inches, using the formula for the area of a triangle and given that the base is twice the height with an area of 324 square inches.

Explanation:

The question requires finding the height and base of a triangular table top given that the area is 324 square inches and the base is twice as long as the height. To find these dimensions, we can use the formula for the area of a triangle, which is Area (A) = [tex]\frac{1}{2}[/tex] × base (b) × height (h). Given that the base is twice the height, we can express the base as 2h.

Now, we can set up the equation using the given area: 324 = [tex]\frac{1}{2}[/tex] × 2h × h. Simplifying gives us 324 = h², so the height (h) would be the square root of 324, which is 18 inches. The base (2h) is therefore 36 inches. So, the dimensions of the tabletop are a base of 36 inches and a height of 18 inches.

The required expression that has a solution of 56 is 7r. Option B is correct.

The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.

Here,
In order to determine the expression that has a solution of 56 when r = 8, lets inverse the expression, to determine the exact expression,
Now,
Let the constant value be x,

xr = 56
Put x = 8
8x=56
x = 56/8
x = 7

So the expression can be given as 7r = 56

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Answer:

The experimental probability of red is 20%.

Step-by-step explanation:

When calculating out the experimental probability, you ignore the actual probability of the action taking place. In this case, you only look to what actually did take place. In this case it was 2 out of 10 times, so we complete that math.

2/10 = 20%

Answer:

The experimental probability of it landing on red is 2/10 or 1/5

Step-by-step explanation:

engenuity 2020

[tex]\dfrac{a^b}{a^c}=a^{(b-c)}[/tex]

An exponent represents repeated multiplication. For example, ...

... x^3 = x·x·x

... x^2 = x·x

If we divide these, the x's in the denominator cancel an equal number in the numerator:

... (x·x·x)/(x·x) = x

If we represent the repeated multiplication using exponents, we can represent the cancellation by subtraction:

... (x^3)/(x^2) = x^(3-2) = x^1 = x

Once we have this idea in mind that division can be done by subtracting denominator exponents, we can use it regardless of the magnitude or sign of the exponents involved.