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r = 3 d = 5

Answer:

230 were sold at the door

170 were sold in advance

Step-by-step explanation:

x=at door y=in advance

x+y=400

3x+2y=1030

y=-x+400

2y=-3x+1030

y=-3/2x+515

-x+400=-3/2x+515

x=230 y=170

Answer:x= -9

Step-by-step explanation: You would dive both sides by 8 and -72 divided by 8 is -9

Answer:-9

Step-by-step explanation:

The answer is -9 because we are solving to get x by itself. Since 8 is being multiplied by x the opposite of multiplication is division. Divide both sides by 8 to get x by itself. -72 divided by 8 is -9 because a negative divided or multiplied by a positive is a negative. To check your work you can do 8 times -9 which equals -72.

Answer:

60/100=0.6 , 40/100=0.4

Step-by-step explanation:

60/100=6/10

6/10=0.6

40/100=4/10

4/10=0.4

Answer:

m and p

p and q

Step-by-step explanation:

both m and q are 71° so what plus 71 = 90; 19. therefore, m and p are complementary as well p and q.

Answer:

[tex]y = x-7[/tex]    

Step-by-step explanation:

To write the equation of the line in slope-intercept form, use the slope-intercept formula, [tex]y = mx +b[/tex]. Find real values for the [tex]m[/tex] and [tex]b[/tex] and substitute them into the formula.  

1) We know that [tex]m[/tex] represents the slope, so substitute 1 in its place.  However, we still need to find [tex]b[/tex], or the y-intercept. So, along with substituting that 1 in for [tex]m[/tex], substitute the x and y values for (7,0) for the x and y in the formula as well. Then, isolate [tex]b[/tex] to find its value:

[tex]y = mx + b\\0 = (1)(7)+b\\0 = 7 + b\\-7 = b[/tex]

So, [tex]b[/tex] = -7.  

2) Now, just substitute the found values for [tex]m[/tex] and [tex]b[/tex] into the slope-intercept formula. Remember that the slope is [tex]m[/tex], so substitute 1 in, and [tex]b[/tex] is -7, so substitute -7 in its place as well. This gives the following equation in slope-intercept form:

[tex]y = 1x -7[/tex] or [tex]y = x-7[/tex]

Answer:

There are 9 000 000 = 9 million reptiles in the US.

Step-by-step explanation:

Percentages and ratio:

The double of a measure, for example, is 200% of the measure.

So 1000% of a measure is 10 times the measure.

There are 90 million pet dogs in the US. The number of dogs is 1000% the number of reptiles.

The number of pet dogs is 10 times the number of reptiles, which means that:

[tex]10x = 90 000 000[/tex]

[tex]x = \frac{90 000 000}{10}[/tex]

[tex]x = 9 000 000[/tex]

There are 9 000 000 = 9 million reptiles in the US.

Answer:

x = 6

Step-by-step explanation:

(8x - 4)° + (3x + 17)° = (17x - 23)° => exterior angle theorem

Solve for x

8x - 4 + 3x + 17 = 17x - 23

Add like terms

11x + 13 = 17x - 23

11x - 17x = -13 - 23

-6x = -36

Divide both sides by -6

x = 6

Answer:

Facial sexual dimorphism emerges at puberty: as the size and shape of the male and female faces increase with age, faces begin to show different secondary sexual characteristics (i.e., masculine or feminine).

Answer:

a = 6.65

Area = 15.84

Step-by-step explanation:

By cosine rule in the given triangle,

BC² = AC² + AB² - 2(AC)(AB)cos(C)

a² = 5² + 9²- 2(5)(7)cos(28°)

a² = 25 + 81 - 61.81

a = [tex]\sqrt{44.19}[/tex]

a = 6.65

Area of a triangle with given three sides = [tex]\sqrt{s(s-a)(s-b)(s-c)}[/tex]

Here, s = Average of lengths of all sides

a, b and c are the measures of the respective sides of the triangle.

s = [tex]\frac{6.65+7+5}{2}[/tex]

s = 9.325

a = 6.65, b = 5 and c = 7

Now substitute these values in the formula to get the area,

Area = [tex]\sqrt{9.325(9.325-6.65)(9.325-5)(9.325-7)}[/tex]

        = [tex]\sqrt{9.325\times 2.675\times 4.325\times 2.325}[/tex]

        = [tex]\sqrt{250.8313}[/tex]

        = 15.838

        = 15.84

Answer:

9

Step-by-step explanation:

18 / 2 = 9

Answer:

9

Step-by-step explanation:

6h/2

Since H is = to 3, u plug in 3 to H and 6 times H would be 3. 6*3 is 18 so then you wuold divide 18 by 2 which would equal 9

Answer:

c.

Step-by-step explanation:

i did the test

Answer:

C

Step-by-step explanation:

Answer:

So equation will be 4x = 10

A 10 ounce container of chocolate chips can be used to make 4 desserts.

Each desert has the same number of chocolate chips

Let number of chocolate chips in each dessert = x ounce

Therefore, chocolate chips in 4 deserts = 4x and total chocolate chips is = 10 ounce.

So equation will be 4x = 10

Equation to represent the number of seventh-grade students who are not in advanced math is A =250 - (250 x 0.32)

Expression in maths is defined as the collection of numbers variables and functions by using signs like addition, subtraction, multiplication, and division.

Given that  Mountain Park Middle School, there are 250 seventh-grade students.

Currently, 32% of those students are in advanced math, then;

Therefore, the number of seventh-grade students who are not in advanced math.

100%-32% = 68%

68% of 250

Equation would be;

A =250 - (250 x 0.32)

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Answer:

i think

 4x^5+9x^3+x+12

Step-by-step explanation:

Answer:

[tex]9\sqrt{3}[/tex]

Step-by-step explanation:

The right triangle on the right is a special right triangle: a 30-60-90 triangle

30-60-90 corresponds with the angle measures on the triangle

the sides on a 30-60-90 relate to the angle opposite of it

30 ⇒x       60 ⇒ x[tex]\sqrt{3}[/tex]      90 ⇒ 2x

27 is opposite to the 60° angle

[tex]\frac{x\sqrt{3}} {\sqrt{3}} =x[/tex]   [tex]\frac{27}{\sqrt{3}}[/tex]  simplify [tex]\frac{27}{\sqrt{3} }[/tex] × [tex]\frac{\sqrt{3} }{\sqrt{3} }[/tex]     [tex]\frac{27\sqrt{3} }{3}[/tex] = [tex]9\sqrt{3}[/tex]

The required value of altitude y is 9 units which is determined by the geometric theorem.

A right triangle is defined as a triangle in which one angle is a right angle or two sides are perpendicular.

As we know that the geometric theorem states that h = √(ab),

where h is the altitude of a right triangle, a and b are the segments formed when the altitude divides the hypotenuse of a right triangle.

We have to determine the value of altitude y

As per the given figure, a = 3, and b = 27

Substitute the values  in the formula, and we get

y = √(3 × 27)

y = √81

y = 9

Therefore, the measure of y = 9.

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Answer:

Z = 2

Step-by-step explanation:

10z+15=-5

subtract 15 from both sides

10z=-20

divide both sides by 10, leaving z by itself.

20 divided by ten is 2

so z =2

Answer:

I need 1 Brainliest before I can become Virtuoso

Step-by-step explanation:

Answer:

what is the question....?

Answer:

Answer:We need to know the question!!

Answer:

Its like... the divising of the shape

Step-by-step explanation:

Answer:

117.2

Step-by-step explanation:

Rounding a number to the nearest tenth:

A number rounded to the nearest tenth will have one decimal place.

To do this, we look at the second decimal digit.

If it is less than 5, the first decimal digit is kept.

Otherwise, one is added to the first decimal digit.

In this question:

117.22666

The second decimal digit is 2, which means that we keep the first decimal digit which is also 2.

So, the number rounded to the nearest tenth is 117.2.

Answer:

a small jar of penuts buteer sells for 0.08 per ounce

A large jar of penut buttter sells for $1.20 per pound

the answer is :

hope it will help you

Step-by-step explanation:

is the answer something like x^12=-2

Answer:

60 cubic units

Step-by-step explanation:

The figure is 5 tall, so just add 5 for each square on the top view.

The volume of the rectangular prism is 60 cubic units

What is the Volume of a Rectangle?

The volume of the rectangle is given by the product of the length of the rectangle and the width of the rectangle and the height of the rectangle

Volume of Rectangle = Length x Width x Height

Volume of Rectangle = Area of Rectangle x Height

Given data ,

Let the volume of the rectangular prism be represented as V

Now , the equation will be

The length of the rectangular prism = 3 units

The width of the rectangular prism = 4 units

The height of the rectangular prism = 5 units

Now , the volume is calculated by

Volume of Rectangle = Length x Width x Height

Substituting the values in the equation , we get

Volume of Rectangle V = 3 x 4 x 5

On simplifying the equation , we get

Volume of Rectangle V = 60 cubic units

Therefore , the value of V is 60 cubic units

Hence , the volume of the rectangular prism is 60 cubic units

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Answer:

are you suar when you get the points you will get the answer